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Neutrino

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12.08.2022
17:23 Phys.org Neutrino rocket model to explain the origin of high-velocity pulsars

The first pulsar was discovered in 1967. With an increase in pulsar observations, astronomers have found that some pulsars have a proper motion velocity greater than 1000 km/s, and the number of such pulsars is growing each year.

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09:16 ScienceNews.org Readers ask about rogue black holes, zippy neutrinos and more

Navigating neutrinos Tidal disruption events, in which supermassive black holes rip apart stars, could supercharge ghostly subatomic particles called neutrinos, Emily Conover reported in “Zippy neutrino linked to a source” (SN: 6/18/22, p. 8). Conover reported that scientists tracked a high-energy neutrino to an area of the sky where a bright flare, thought to be […]

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03.08.2022
18:31 Physics.Aps.org Long-Baseline Neutrino Experiments March On

Author(s): Sara BolognesiLong-baseline neutrino experiments are paving the way for the solution of two outstanding puzzles in neutrino physics—mass ordering and charge-parity violation. [Physics 15, 120] Published Wed Aug 03, 2022

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17:30 Aps.org Editors' Suggestions Improved measurement of neutrino oscillation parameters by the NOvA experiment

Author(s): M. A. Acero et al. (The NOvA Collaboration)Long-baseline neutrino experiments are paving the way for the solution of two outstanding puzzles in neutrino physics—mass ordering and charge-parity violation. [Phys. Rev. D 106, 032004] Published Wed Aug 03, 2022

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29.07.2022
21:00 ScientificAmerican.Com See the Strange Underground Detector Probing Neutrino Mysteries

The LEGEND-200 detector could help explain why matter dominates the known universe

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27.07.2022
14:57 Space.com 'Neutrino factories' could hold the solution to the cosmic ray mystery

The origins of high-energy particles that bombard the Earth from deep space may have been revealed for the first time by new research.

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25.07.2022
17:53 Phys.org Using an antineutrino reactor-off method between submarine patrols to by-pass need for onboard access inspections

A pair of researchers at Virginia Tech is suggesting that it should be possible to use a low-energy antineutrino reactor-off method set between submarine patrols to by-pass the need for onboard access by inspectors. In their paper published in the journal Physical Review Letters, Bernadette Cogswell and Patrick Huber describe a means for safeguarding nuclear fuel used for naval propulsion systems on vessels around the world.

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19.07.2022
16:53 Phys.org A mission concept to fly a solar neutrino detector close to the sun

Astronomers have proposed a concept mission to fly a neutrino observatory into orbit around the sun to get a better picture of what's happening in the sun's core.

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05:12 UniverseToday.Com A Mission Concept to fly a Solar Neutrino Detector Close to the Sun

Astronomers have proposed a concept mission to fly a neutrino observatory into orbit around the Sun to get a better picture of what’s happening in the Sun’s core. Astronomers have very few tools to peer into the heart of the Sun. Thankfully, the nuclear reactions constantly happening in the core of the Sun as it … Continue reading "A Mission Concept to fly a Solar Neutrino Detector Close to the Sun" The post A Mission Concept to fly a Solar Neutrino Detector Close to the Sun appeared first on Universe Today.

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15.07.2022
00:50 ScienceDaily.com Neutrino factories in deep outer space

Highly energetic and difficult to detect, neutrinos travel billions of light years before reaching our planet. Although it is known that these elementary particles come from the depths of our Universe, their precise origin is still unknown. Researchers are now shedding light on one aspect of this mystery: neutrinos are thought to be born in blazars, galactic nuclei fed by supermassive black holes.

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14.07.2022
20:13 Phys.org Discovery of extragalactic neutrino factories

Highly energetic and difficult to detect, neutrinos travel billions of light years before reaching our planet. Although it is known that these elementary particles come from the depths of our universe, their precise origin is still unknown. An international research team, led by the University of Würzburg and the University of Geneva (UNIGE), is shedding light on one aspect of this mystery: neutrinos are thought to be born in blazars, galactic nuclei fed by supermassive black holes. These results are published in the journal The Astrophysical Journal Letters.

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29.06.2022
18:31 Physics.Aps.org A Step Closer to Detecting Ancient Neutrinos

Author(s): Allison GaspariniUsing radioactive tritium, scientists improve laboratory constraints on the overdensity signal of cosmic relic neutrinos by a factor of 100, an advance that should improve the chances of spotting this elusive particle. [Physics 15, s85] Published Wed Jun 29, 2022

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17:30 Aps.org Editors' Suggestions New Constraint on the Local Relic Neutrino Background Overdensity with the First KATRIN Data Runs

Author(s): M. Aker et al. (KATRIN Collaboration)Using radioactive tritium, scientists improve laboratory constraints on the “overdensity” signal of cosmic relic neutrinos by a factor of 100, an advance that should improve the chances of spotting this elusive particle. [Phys. Rev. Lett. 129, 011806] Published Wed Jun 29, 2022

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17:30 Aps.org Editors' Suggestions Strong Constraints on Neutrino Nonstandard Interactions from TeV-Scale ${ν}_{μ}$ Disappearance at IceCube

Author(s): R. Abbasi et al. (IceCube Collaboration)World-leading constraints are placed on nonstandard neutrino interactions using eight years of TeV-scale atmospheric muon neutrino data. [Phys. Rev. Lett. 129, 011804] Published Wed Jun 29, 2022

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28.06.2022
16:33 Phys.org Study identifies a tidal disruption event that coincides with the production of a high-energy neutrino

High-energy neutrinos are highly fascinating subatomic particles produced when very fast charged particles collide with other particles or photons. IceCube, a renowned neutrino detector located at the South Pole, has been detecting extragalactic high-energy neutrinos for almost a decade.

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23.06.2022
17:36 CosmosMagazine.com Anomalous experiment result suggests physicists may need to rethink the humble neutrino

Every now and then an experiment throws everything we think we know about the universe into a tailspin. It makes particle physicists cranky and excited all at once. It makes the non-physicists scratch their noggins as they wonder what all the fuss is about. Just this year, there was hype around the mass measurement of […]

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16.06.2022
14:07 ScienceNews.org Neutrinos hint the sun has more carbon and nitrogen than previously thought

Scientists still don’t know the sun’s exact chemical composition, which is crucial for understanding the entire universe. Neutrinos will help.

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15.06.2022
21:10 ScientificAmerican.Com What Are Neutrinos, and How Can We Measure Their Mass?

 The weirdest subatomic particles require enormous equipment to study -- Read more on ScientificAmerican.com

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14.06.2022
18:30 Aps.org Editors' Suggestions Cerium Ruthenium Low-Energy Antineutrino Measurements for Safeguarding Military Naval Reactors

Author(s): Bernadette K. Cogswell and Patrick HuberMonitoring the fissile material aboard nuclear-powered submarines is notoriously difficult. Researchers may now have a way to safeguard this weapons-grade substance. [Phys. Rev. Lett. 128, 241803] Published Tue Jun 14, 2022

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00:31 Physics.Aps.org Neutrino Mystery Endures

Author(s): Elizabeth WorcesterNew neutrino-oscillation data show no sign of an anomalous signal seen in previous studies, but the analyses can’t yet fully rule out its presence. [Physics 15, 85] Published Mon Jun 13, 2022

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13.06.2022
23:30 Aps.org Editors' Suggestions Search for an Excess of Electron Neutrino Interactions in MicroBooNE Using Multiple Final-State Topologies

Author(s): P. Abratenko et al. (MicroBooNE Collaboration)New neutrino-oscillation data show no sign of an anomalous signal seen in previous studies, but the analyses can’t yet fully rule out its presence. [Phys. Rev. Lett. 128, 241801] Published Mon Jun 13, 2022

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09.06.2022
21:30 Aps.org Editors' Suggestions Search for electron-neutrino transitions to sterile states in the BEST experiment

Author(s): V. V. Barinov et al.First results from the BEST Collaboration searching for short-baseline neutrino oscillations to sterile neutrinos with a high-intensity 51 Cr monoenergetic neutrino source reaffirm that the so-called gallium anomaly, a deficit in electron neutrinos, persists. 4 σ deficits were observed in the 71 Ge production rates at two different distance scales, which could be interpreted as oscillations between an electron neutrino and a hypothetical sterile neutrino. The results are consistent with oscillations with a mass

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03.06.2022
19:31 Physics.Aps.org Neutrinos from a Black Hole Snack

Author(s): Mark BuchananResearchers have found new evidence that high-energy neutrinos are emitted when a black hole gobbles up a hapless star. [Physics 15, 77] Published Fri Jun 03, 2022

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17:30 Aps.org Editors' Suggestions Candidate Tidal Disruption Event AT2019fdr Coincident with a High-Energy Neutrino

Author(s): Simeon Reusch et al.Researchers have found new evidence that high-energy neutrinos are emitted when a black hole gobbles up a hapless star. [Phys. Rev. Lett. 128, 221101] Published Fri Jun 03, 2022

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02.06.2022
16:07 ScienceNews.org How neutrinos could ensure a submarine’s nuclear fuel isn’t weaponized

Nuclear submarines could be monitored with the help of neutrinos to ensure that the fuel isn’t diverted to nuclear weapons programs

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03:50 ScienceDaily.com Physicists announce first results from The Daya Bay Neutrino Experiment's final dataset

Over nearly nine years, the Daya Bay Reactor Neutrino Experiment captured an unprecedented five and a half million interactions from subatomic particles called neutrinos. Now, the international team of physicists has reported the first result from the experiment's full dataset -- the most precise measurement yet of theta13, a key parameter for understanding how neutrinos change their 'flavor.' The result will help physicists explore some of the biggest mysteries surrounding the nature of matter and the universe.

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27.05.2022
01:04 South China Morning Post China, Italy lead global hunt for ghostlike neutrinos while the US takes a separate track

After decades as China’s chief research partner into the tiny particles, the United States is working on its own project, but Juno will be ready first.

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16.05.2022
18:06 ScienceNews.org High-energy neutrinos may come from black holes ripping apart stars

Where extremely energetic neutrinos originate from is a mystery. A new study supports the idea that “tidal disruption events” are one source.

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11.05.2022
20:45 Yahoo.com Business Crisis in Terra's UST Stablecoin Spreads to Neutrino USD on Waves Protocol

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20:44 CoinDesk.com Crisis in Terra's UST Stablecoin Spreads to Neutrino USD on Waves Protocol

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04:10 NewScientist.Com A tiny graphene device could detect neutrinos from the big bang

Neutrinos from the early universe have never been detected directly but a device that uses the atom-thick material graphene might be able to change that

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09.05.2022
21:30 Aps.org Editors' Suggestions Fast neutrino flavor instability and neutrino flavor lepton number crossings

Author(s): Taiki MorinagaIn astrophysical environments with a large number of neutrinos, such as supernovae, neutrinos exhibit nonlinear flavor oscillations due to interactions with the dense neutrino background. Characterizing the features of these flavor conversions is a difficult problem. The present paper by Taiki Morinaga makes a significant contribution by establishing rigorously the sufficient and necessary conditions under which so-called fast neutrino flavor instabilities arise. [Phys. Rev. D 105, L101301] Published Mon May 09, 2022

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06.05.2022
18:56 Space.com Large Hadron Collider experiment investigates neutrino's minuscule mass

Scientists are investigating the elusive neutrino with a new experiment at the Large Hadron Collider (LHC).

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04.05.2022
17:13 Phys.org Researchers test key neutrino model at the Large Hadron Collider

The CMS collaboration at the Large Hadron Collider (LHC) has carried out a new test on a model that was developed to explain the tiny mass of neutrinos, electrically neutral particles that change type as they travel through space.

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13.04.2022
15:00 ScientificAmerican.Com Troubled U.S. Neutrino Project Faces Uncertain Future--and Fresh Opportunities

A new two–phase approach to building the Deep Underground Neutrino Experiment ignites controversy among particle physicists -- Read more on ScientificAmerican.com

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12.04.2022
22:10 ScienceDaily.com Breakthrough measurement elucidates neutrino interactions

Physicists studying ghost-like particles called neutrinos from the international MicroBooNE collaboration have reported a first-of-its-kind measurement: a comprehensive set of the energy-dependent neutrino-argon interaction cross sections. This measurement marks an important step towards achieving the scientific goals of next-generation of neutrino experiments--namely, the Deep Underground Neutrino Experiment (DUNE).

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20:02 Phys.org Breakthrough MicroBooNE measurement elucidates neutrino interactions

Physicists studying ghost-like particles called neutrinos from the international MicroBooNE collaboration have reported a first-of-its-kind measurement: a comprehensive set of the energy-dependent neutrino-argon interaction cross sections. This measurement marks an important step towards achieving the scientific goals of next-generation of neutrino experiments—namely, the Deep Underground Neutrino Experiment (DUNE).

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07.04.2022
14:52 Phys.org Research places new limits on the bizarre behavior of neutrinos

In a laboratory under a mountain, physicists are using crystals far colder than frozen air to study ghostly particles, hoping to learn secrets from the beginning of the universe. Researchers at the Cryogenic Underground Observatory for Rare Events (CUORE) announced this week that they had placed some of the most stringent limits yet on the strange possibility that the neutrino is its own antiparticle. Neutrinos are deeply unusual particles, so ethereal and so ubiquitous that they regularly pass through our bodies without us noticing. CUORE has spent the last three years patiently waiting to see evidence of a distinctive nuclear decay process, only possible if neutrinos and antineutrinos are the same particle. CUORE's new data shows that this decay doesn't happen for trillions of trillions of years, if it happens at all. CUORE's limits on the behavior of these tiny phantoms are a crucial part of the search for the next breakthrough in particle and nuclear physics—and the search for our

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11:42 Technology.org New limits on the bizarre behavior of neutrinos placed by CUORE team

Physicists are closing in on the true nature of the neutrino — and might be closer to answering

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06.04.2022
18:40 Nature.Com Search for Majorana neutrinos exploiting millikelvin cryogenics with CUORE

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18:35 Nature.com (news) Search for Majorana neutrinos exploiting millikelvin cryogenics with CUORE

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31.03.2022
17:13 Phys.org Borexino gathers the first directional measurement of sub-MeV solar neutrinos using a monolithic scintillation detector

Borexino is a large-scale particle physics experiment that collected data until October 2021. Its key mission was to study low energy (sub-MeV) solar neutrinos using the Borexino detector, the world's most radio-pure liquid scintillator calorimeter, located at the Laboratori Nazionali del Gran Sasso near Aquila, in Italy.

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29.03.2022
22:42 ScienceMag.org Trying to stay ahead of competition, U.S. pares down troubled $3 billion neutrino experiment

Decision to build LBNF/DUNE megaproject in two phases will add to already ballooning costs

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28.03.2022
18:22 Phys.org Team at Borexino shows it is possible to have directional and energy sensitivity when studying solar neutrinos

A group of researchers working with data from the Borexino detector at the Laboratori Nazionali del Gran Sasso in Italy, has shown that it is possible to measure solar neutrinos with both directional and energy sensitivity. Two teams within the group have written papers describing the work by the group—one of them has published their work in Physical Review D, the other in Physical Review Letters.

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14.03.2022
17:53 Aps.org Editors' Suggestions Search for Neutrino-Induced Neutral-Current $\mathrm{Δ}$ Radiative Decay in MicroBooNE and a First Test of the MiniBooNE Low Energy Excess under a Single-Photon Hypothesis

Author(s): P. Abratenko et al. (MicroBooNE Collaboration)The MicroBooNE collaboration rules out a promising standard model explanation for the MiniBooNE low-energy excess: ∆ baryon radiative decay. [Phys. Rev. Lett. 128, 111801] Published Mon Mar 14, 2022

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10.03.2022
18:17 Phys.org The IceCube Collaboration sets the most restrictive constraints on relic magnetic monopoles from the early universe

Recent technological advances have enabled the development of increasingly advanced telescope and astrophysical instruments. This includes the IceCube telescope, which was originally built to detect and examine high-energy neutrinos in the universe.

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17:01 Phys.org Spotting accelerator-produced neutrinos in a cosmic haystack

Physicists have developed new tools to help tone down the cosmic "noise" when searching for signs of particles called neutrinos in detectors located near Earth's surface. This method combines data-sifting techniques with image reconstruction methods similar to the computerized tomography (CT) scans used in medicine. It makes the signals of neutrinos produced by a particle accelerator stand out against the "web" of tracks produced by cosmic rays. These cosmic travelers are 20,000 times more numerous than neutrino interactions in the detector. Filtering out the many tracks from cosmic rays should improve experiments on the Earth's surface that are seeking to understand the behavior of the subatomic neutrinos.

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03.03.2022
20:02 Physics.Aps.org Synopsis: Solar-Neutrino Detection Gets a Boost

Author(s): Katie McCormickA new measurement method allows researchers to obtain directional information about low-energy solar neutrinos, something that was previously hard to do.   [Physics 15, s25] Published Thu Mar 03, 2022

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18:58 Aps.org Editors' Suggestions Correlated and integrated directionality for sub-MeV solar neutrinos in Borexino

Author(s): M. Agostini et al. (Borexino Collaboration)A new measurement method allows researchers to obtain directional information about low-energy solar neutrinos, something that was previously hard to do. [Phys. Rev. D 105, 052002] Published Thu Mar 03, 2022

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18:58 Aps.org Editors' Suggestions First Directional Measurement of Sub-MeV Solar Neutrinos with Borexino

Author(s): M. Agostini et al. (Borexino Collaboration)A new measurement method allows researchers to obtain directional information about low-energy solar neutrinos, something that was previously hard to do. [Phys. Rev. Lett. 128, 091803] Published Thu Mar 03, 2022

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02.03.2022
18:47 Phys.org Local nuclear reactor helps scientists catch and study neutrinos

A nuclear reactor at an Illinois energy plant is helping University of Chicago scientists learn how to catch and understand the tiny, elusive particles known as neutrinos.

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26.02.2022
11:01 Technology.org A new upper limit on the mass of neutrinos

An international research team, including scientists from the University of Washington, has established a new upper limit on

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23.02.2022
12:31 Nature.Com Earth-like planet, neutrino’s mysterious mass and disease eradication

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22.02.2022
17:03 LiveScience.com Physicists get closer than ever to measuring the elusive neutrino

Scientists used a 200-ton "neutrino scale" to measure the elusive particles.

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21.02.2022
17:09 ScientificAmerican.Com How Light Is a Neutrino? The Answer Is Closer Than Ever

The latest effort to weigh the elusive particle produces a more precise estimate of its upper limit -- Read more on ScientificAmerican.com

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15.02.2022
03:48 ScienceDaily.com Neutrinos are lighter than 0.8 electronvolts

New research has broken an important 'barrier' in neutrino physics which is relevant for both particle physics and cosmology. A new upper limit of 0.8 electronvolt (eV) for the mass of the neutrino has been obtained. This first push into the sub-eV mass scale of neutrinos by a model-independent laboratory method allows KATRIN to constrain the mass of these 'lightweights of the universe' with unprecedented precision.

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14.02.2022
21:55 Physics.Aps.org Research News: Maximum Neutrino Mass Drops Again

Author(s): Matteo RiniThe KATRIN experiment has delivered the best estimate to date for the maximum mass of a neutrino, finding it to be over 25% lower than the previous estimate. [Physics 15, 25] Published Mon Feb 14, 2022

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21:09 Nature.Com How light is a neutrino? The answer is closer than ever

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19:29 Phys.org Neutrinos are lighter than 0.8 electronvolts: Experiment limits neutrino mass with unprecedented precision

The international KArlsruhe TRItium Neutrino Experiment (KATRIN), located at Karlsruhe Institute of Technology (KIT), has broken an important barrier in neutrino physics that is relevant for both particle physics and cosmology. Based on data published in the journal Nature Physics, a new upper limit of 0.8 electronvolt (eV) for the mass of the neutrino has been obtained. This first push into the sub-eV mass scale of neutrinos by a model-independent laboratory method allows KATRIN to constrain the mass of these "lightweights of the universe" with unprecedented precision.

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02.02.2022
18:57 Aps.org Editors' Suggestions Search for Relativistic Magnetic Monopoles with Eight Years of IceCube Data

Author(s): R. Abbasi et al. (IceCube Collaboration)No magnetic monopoles have been found in an analysis of data from the IceCube Neutrino Observatory, but the analysis method could still help advance the search for these elusive particles. [Phys. Rev. Lett. 128, 051101] Published Wed Feb 02, 2022

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21.01.2022
15:14 LiveScience.com Astronomers propose building a neutrino detector out of the Pacific Ocean

The Pacific Ocean Neutrino Experiment would turn a massive swath of the Pacific Ocean into nature's own neutrino detector.

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16.12.2021
20:03 Physics.Aps.org Synopsis: Redefining How Neutrinos Impede Dark Matter Searches

Author(s): Christopher CrockettA new definition of the “neutrino floor” in dark matter experiments clarifies the challenges ahead in differentiating neutrinos from WIMPs.   [Physics 14, s154] Published Thu Dec 16, 2021

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19:01 Aps.org Editors' Suggestions New Definition of the Neutrino Floor for Direct Dark Matter Searches

Author(s): Ciaran A. J. O’HareA new definition of the “neutrino floor” in dark matter experiments clarifies the challenges ahead in differentiating neutrinos from WIMPs. [Phys. Rev. Lett. 127, 251802] Published Thu Dec 16, 2021

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07.12.2021
20:26 World-Nuclear-News.org Atucha 2 supports neutrino experiment

Neutrino detection kit has been installed within the containment of Argentina's Atucha 2 reactor in support of a US-Argentine experiment to learn more about the mysterious particles.

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03.12.2021
21:21 LiveScience.com Scientists spot elusive 'ghost particles' for the first time inside the Large Hadron Collider

The breakthrough will allow scientists to research long sought-after high energy neutrinos.

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01.12.2021
23:08 ScientificAmerican.Com Elusive Neutrino Candidates Detected in Breakthrough Physics Experiment

At long last, researchers have glimpsed ghostly particles produced by CERN’s Large Hadron Collider -- Read more on ScientificAmerican.com

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30.11.2021
23:07 ScienceDaily.com Electrons set the stage for neutrino experiments

Neutrinos may be the key to finally solving a mystery of the origins of our matter-dominated universe, and preparations for two major, billion-dollar experiments are underway to reveal the particles' secrets. Now, a team of nuclear physicists have turned to the humble electron to provide insight for how these experiments can better prepare to capture critical information.

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26.11.2021
13:13 Technology.org UCI-led team of physicists detects signs of neutrinos at Large Hadron Collider

The international Forward Search Experiment team, led by physicists at the University of California, Irvine, has achieved the

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13:00 Phys.org Physicists detect signs of neutrinos at Large Hadron Collider

The international Forward Search Experiment team, led by physicists at the University of California, Irvine, has achieved the first-ever detection of neutrino candidates produced by the Large Hadron Collider at the CERN facility near Geneva, Switzerland.

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24.11.2021
19:18 Nature.Com Electrons reveal the need for improved neutrino models

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19:18 Nature.Com Electron-beam energy reconstruction for neutrino oscillation measurements

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19:10 Phys.org Electrons set the stage for neutrino experiments

Neutrinos may be the key to finally solving a mystery of the origins of our matter-dominated universe, and preparations for two major, billion-dollar experiments are underway to reveal the particles' secrets. Now, a team of nuclear physicists have turned to the humble electron to provide insight for how these experiments can better prepare to capture critical information. Their research, which was carried out at the U.S. Department of Energy's Thomas Jefferson National Accelerator Facility and recently published in Nature, reveals that major updates to neutrino models are needed for the experiments to achieve high-precision results.

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12.11.2021
18:54 Aps.org Editors' Suggestions Nonradial neutrino emission upon black hole formation in core collapse supernovae

Author(s): Jia-Shian Wang, Jeff Tseng, Samuel Gullin, and Evan P. O’ConnorCore-collapse supernovae resulting in black hole formation are expected to feature a precipitous decline in neutrino luminosity. The authors provide considerable nuance to this picture by considering non-radial neutrino emission in both the spherically symmetric (Schwarzschild) and rotating (Kerr) black hole cases. In each of these cases, they show that non-radial neutrinos affect the luminosity cut-off shape in interesting ways that indicate a rich domain for further theoretical and observational exploration. [Phys. Rev. D 104, 104030] Published Fri Nov 12, 2021

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11.11.2021
17:27 NewScientist.Com Sterile neutrinos could explain dark matter – if we can find them

There are good reasons to think that neutrinos have a shy cousin that could explain dark matter, but searches have so far come up empty, writes Chanda Prescod-Weinstein

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08.11.2021
14:25 Technology.org Experiment Finds no Sign of Sterile Neutrinos

We don’t know what dark matter is. We do know the characteristics of dark matter, and much of

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04.11.2021
16:02 ScientificAmerican.Com Can Sterile Neutrinos Exist?

Physicists have wondered if neutrino particles come in a mysterious fourth variety. Now new experimental findings complicate the question -- Read more on ScientificAmerican.com

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01.11.2021
15:06 TheNextWeb.com Physicists have come back empty-handed after their search for “sterile neutrinos” fails

Physicists searching for evidence of a “light sterile neutrino”, a hypothetical particle that could give clues to cosmic puzzles such as the nature of dark matter and why the Universe is made of matter at all, have announced their hunt has come back empty-handed. The MicroBooNE experiment at Fermilab was designed to follow up on earlier hints of neutrinos behaving oddly, but the negative result deals a blow to the idea of such a new elementary particle. Neutrinos are lightweight, elusive subatomic particles, and current theories recognize three different types. In 1995, however, the Liquid Scintillator Neutrino Detector (LSND) experiment…This story continues at The Next Web

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12:20 Technology.org MicroBooNE Sheds Light on Neutrino Puzzle

UC Santa Barbara assistant professor Xiao Luo(link is external) has big love for the tiny neutrino(link is external), a common, yet

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29.10.2021
15:07 Phys.org Investigating a long-standing neutrino mystery

Neutrinos are one of the most mysterious members of the Standard Model, a framework for describing fundamental forces and particles in nature. While they are among the most abundant known particles in the universe, they interact very rarely with matter, making their detection a challenging experimental feat. One of the long-standing puzzles in neutrino physics comes from the Mini Booster Neutrino Experiment (MiniBooNE), which ran from 2002 to 2017 at the Fermi National Accelerator Laboratory, or Fermilab, in Illinois. MiniBooNE observed significantly more neutrino interactions that produce electrons than one would expect given our best knowledge of the Standard Model—and physicists are trying to understand why.

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09:12 Technology.org New era of physics uncovered by Neutrino experiment’s first results

A major new physics experiment has used four complementary analyses to show no signs of a theorised fourth

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28.10.2021
20:42 Nature.Com Daily briefing: physicists fail to find elusive ‘sterile neutrinos’

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17:46 QuantaMagazine.org Is the Great Neutrino Puzzle Pointing to Multiple Missing Particles?

Years of conflicting neutrino measurements have led physicists to propose a “dark sector” of invisible particles — one that could simultaneously explain dark matter, the puzzling expansion of the universe, and other mysteries. The post Is the Great Neutrino Puzzle Pointing to Multiple Missing Particles? first appeared on Quanta Magazine

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27.10.2021
20:02 Yahoo Science Neutrino result marks new chapter in physics

The latest news and headlines from Yahoo! News. Get breaking news stories and in-depth coverage with videos and photos.

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19:48 Phys.org Scientists find no hint of sterile neutrino

New results from the MicroBooNE experiment at the U.S. Department of Energy's Fermi National Accelerator Laboratory deal a blow to a theoretical particle known as the sterile neutrino. There is no such thing.

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19:33 NewScientist.Com Physicists fail to find mysterious 'sterile neutrino' particles

After decades of looking, physicists are no closer to discovering theorised particles that could help solve ongoing problems in physics

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25.10.2021
17:53 Aps.org Editors' Suggestions Reevaluating reactor antineutrino spectra with new measurements of the ratio between $^{235}\mathrm{U}$ and $^{239}\mathrm{Pu}$ $β$ spectra

Author(s): V. Kopeikin, M. Skorokhvatov, and O. TitovOver the last decade, a discrepancy between the theoretical and measured values of the antineutrino spectrum at nuclear reactors has remained unresolved and been dubbed the reactor antineutrino anomaly (RAA). In the present paper, a resolution to this anomaly is proposed based on recent experimental results on the beta spectra of U(235) and Pu(239) obtained at the National Research Centre Kurchatov Institute (KI). These measurements indicate a systematic excess in the spectra on which the discrepant theoretical model was based. The adjusted predictions are now consistent with the Daya Bay and STEREO reactor experiments. [Phys. Rev. D 104, L071301] Published Mon Oct 25, 2021

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18.10.2021
19:16 Phys.org Analysis puts most general constraints on nonstandard neutrino interactions

For decades, physicists have theorized that the current best theory describing particle physics—the "Standard Model"—was not sufficient to explain the way the universe works. In the search for physics beyond the Standard Model (BSM), elusive particles called neutrinos might point the way.

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14.10.2021
21:16 Yahoo.com Business Electromobility of the Future: India and German Neutrino Energy Have Formed a Groundbreaking Partnership

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13.10.2021
19:21 ScienceDaily.com To find sterile neutrinos, think small

Experiments have spotted anomalies hinting at a new type of neutrino, one that would go beyond the standard model of particle physics and perhaps open a portal to the dark sector. But no one has ever directly observed this hypothetical particle.

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17:16 ScienceDaily.com Did a black hole eating a star generate a neutrino? Unlikely, new study shows

New calculations show that a black hole slurping down a star may not have generated enough energy to launch a neutrino.

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12:13 Phys.org Did a black hole eating a star generate a neutrino? Unlikely, new study shows

In October 2019, a high-energy neutrino slammed into Antarctica. The neutrino, which was remarkably hard to detect, peaked astronomers' interest: what could generate such a powerful particle?

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12.10.2021
18:55 Phys.org Finding sterile neutrinos

Experiments have spotted anomalies hinting at a new type of neutrino, one that would go beyond the standard model of particle physics and perhaps open a portal to the dark sector. But no one has ever directly observed this hypothetical particle.

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01.10.2021
16:49 Phys.org Scientists assemble final detector of Fermilab's Short-Baseline Neutrino Program

With a directive to look for physics beyond the standard model and study the behavior of the universe's most elusive particles, the U.S. Department of Energy's Fermi National Accelerator Laboratory's Short-Baseline Neutrino Program has a full plate.

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28.09.2021
17:40 Technology.org Gamma-rays and neutrinos from mellow supermassive black holes

Supermassive black holes, even if they are not so active, can be major factories of high-energy cosmic particles

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15:15 WhatReallyHappened.com This photo of the sun might not look too impressive... until you realize it was taken at night – not looking up but looking down, through the entire Earth, using neutrinos rather than light. (Picture)

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26.09.2021
16:03 Technology.org The physics anomaly no one talks about: What’s up with those neutrinos?

Modern science often falls victim to mass popularity: interesting headlines immediately capture our attention, and therefore they quickly

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24.09.2021
22:05 ScienceDaily.com Gamma rays and neutrinos from mellow supermassive black holes

The Universe is filled with energetic particles, such as X rays, gamma rays, and neutrinos. However, most of the high-energy cosmic particles' origins remain unexplained.

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17:18 Phys.org Gamma rays and neutrinos from mellow supermassive black holes

The Universe is filled with energetic particles, such as X rays, gamma rays, and neutrinos. However, most of the high-energy cosmic particles' origins remain unexplained.

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28.07.2021
14:23 Phys.org Supernova explosions are sustained by neutrinos from neutron stars, a new observation suggests

A model for supernova explosions first proposed in the 1980s has received strong support from the observation by RIKEN astrophysicists of titanium-rich plumes emanating from a remnant of such an explosion.

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11:22 Nanowerk.com Smoking-gun evidence for neutrinos' role in supernova explosions

Supernova explosions are sustained by neutrinos from neutron stars, a new observation suggests.

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