Current Neutrinos News and Events

Current Neutrinos News and Events, Neutrinos News Articles.
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Detecting solar neutrinos with the Borexino experiment
A paper published in EPJ C by a team of authors including XueFeng Ding, Postdoc Associate of Physics at Princeton University, United States, documents the attempts of the Borexino experiment to measure low-energy neutrinos from the sun's carbon-nitrogen-oxygen (CNO) cycle for the first time. (2020-12-04)

Next step in simulating the universe
Researchers led by the University of Tsukuba developed a way to accurately represent the behavior of elementary particles called neutrinos in computer simulations of the Universe. The simulation results reveal the effects of neutrinos on the formation and growth of galaxies for different values of the uncertain neutrino mass. The work marks a milestone in simulating the Universe and could help determine the neutrino mass. (2020-12-01)

Researchers validate theory that neutrinos shape the universe
A research team including Kavli IPMU Principal Investigator Naoki Yoshida has, in a world first, succeeded in performing a 6-dimensional simulation of neutrinos moving through the universe. (2020-12-01)

Sun model completely confirmed for the first time
The Borexino experiment research team has succeeded in detecting neutrinos from the sun's second fusion process, the Carbon Nitrogen Oxygen cycle (CNO cycle) for the first time. This means that all of the theoretical predictions on how energy is generated within the sun have now also been experimentally verified. The findings are the result of years of efforts devoted to bringing the background sources in the energy range of the CNO neutrinos under control. (2020-11-26)

Understanding the power of our Sun
For the first time, the international team was able to directly observe neutrinos from this cycle (CNO neutrinos) with the Borexino detector in the Laboratori Nazionali in the Gran Sasso Massif (Italy). This milestone represents the fulfilment of a long-cherished scientific dream for the Dresden neutrino researcher Prof Kai Zuber and his team at the Institute of Nuclear and Particle Physics. (2020-11-25)

Solar CNO neutrinos observed for the first time
Scientists who are members of the Borexino Collaboration have provided the first experimental proof of the occurrence of the so-called CNO cycle in the Sun: They have managed to directly detect the distinctive neutrinos generated during this fusion process. This is an important milestone on the route to better understanding the fusion processes that occur in the Sun. The Borexino Collaboration's findings have been published in the latest issue of the journal Nature. (2020-11-25)

Neutrinos yield first experimental evidence of catalyzed fusion dominant in many stars
An international team of about 100 scientists of the Borexino Collaboration, including particle physicist Andrea Pocar at the University of Massachusetts Amherst, report in Nature this week detection of neutrinos from the sun, directly revealing for the first time that the carbon-nitrogen-oxygen (CNO) fusion-cycle is at work in our sun. (2020-11-25)

Understanding ghost particle interactions
Argonne scientists were part of a team that constructed a nuclear physics model capturing the interactions between neutrinos and atomic nuclei. This model building is part of a larger project to understand the role of neutrinos in the early universe. (2020-09-28)

Big answers from tiny particles
A team of physicists led by Kanazawa University demonstrate a theoretical mechanism that would explain the tiny value for the mass of neutrinos and point out that key operators of the mechanism can be probed by current and future experiments. This work may provide a breakthrough for big philosophical quandaries, including why matter exists. (2020-09-14)

Revealing the secrets of high-energy cosmic particles
The ''IceCube'' neutrino observatory deep in the ice of the South Pole has already brought spectacular new insights into cosmic incidents of extremely high energies. In order to investigate the cosmic origins of elementary particles with even higher energies, Prof. Elisa Resconi from the Technical University of Munich (TUM) has now started an international initiative to build a neutrino telescope several cubic kilometers in size in the northeastern Pacific. (2020-09-10)

Physicists cast doubt on neutrino theory
University of Cincinnati physicists, as part of an international research team, are raising doubts about the existence of an exotic subatomic particle that failed to show up in twin experiments. (2020-08-11)

ALMA finds possible sign of neutron star in supernova 1987A
Based on ALMA observations and a theoretical follow-up study, scientists suggest that a neutron star might be hiding deep inside the remains of Supernova 1987A. (2020-07-30)

Exotic neutrinos will be difficult to ferret out
An international team tracking the 'new physics' neutrinos has checked the data of all the relevant experiments associated with neutrino detections against Standard Model extensions proposed by theorists. The latest analysis, the first with such comprehensive coverage, shows the scale of challenges facing right-handed neutrino seekers, but also brings a spark of hope. (2020-07-16)

Researchers develop novel approach to modeling yet-unconfirmed rare nuclear process
Researchers from the Facility for Rare Isotope Beams (FRIB) Laboratory at Michigan State University (MSU) have taken a major step toward a theoretical first-principles description of neutrinoless double-beta decay. Observing this yet-unconfirmed rare nuclear process would have important implications for particle physics and cosmology. Theoretical simulations are essential to planning and evaluating proposed experiments. The research team presented their results in an article recently published in Physical Review Letters. (2020-07-06)

Excess neutrinos and missing gamma rays?
A new model points to the coronoe of supermassive black holes at the cores of active galaxies to help explain the excess neutrinos observed by the IceCube Neutrino Observatory. (2020-06-30)

A step forward in solving the reactor-neutrino flux problem
Joint effort of the nuclear theory group at the University of Jyvaskyla and the international collaborative EXO-200 experiment paves the way for solving the reactor antineutrino flux problems. The EXO-200 collaboration consists of researchers from 26 laboratories and the experiment is designed to measure the mass of the neutrino. As a by product of the calibration efforts of the experiment the electron spectral shape of the beta decay of Xe-137 could be measured. (2020-06-17)

Virginia Tech research provides new explanation for neutrino anomalies in Antarctica
A new research paper co-authored by a Virginia Tech assistant professor of physics provides a new explanation for two recent strange events that occurred in Antarctica -- high-energy neutrinos appearing to come up out of the Earth on their own accord and head skyward. (2020-06-09)

Where neutrinos come from
Russian astrophysicists have come close to solving the mystery of where high-energy neutrinos come from in space. The team compared the data on the elusive particles gathered by the Antarctic neutrino observatory IceCube and on long electromagnetic waves measured by radio telescopes. Cosmic neutrinos turned out to be linked to flares at the centers of distant active galaxies, which are believed to host supermassive black holes. (2020-05-13)

Study: could dark matter be hiding in existing data?
A new study, led by researchers at Berkeley Lab and UC Berkeley, suggests new paths for catching the signals of dark matter particles that have their energy absorbed by atomic nuclei. (2020-05-04)

Scientists make step towards understanding the universe
Physicists from the University of Sheffield have taken a step towards understanding why the universe is made of mostly matter and not antimatter, by studying the difference between the two. (2020-04-16)

T2K insight into the origin of the universe
Lancaster physicists working on the T2K major international experiment in Japan are closing in on the mystery of why there is so much matter in the universe, and so little antimatter. The Big Bang should have created equal amounts of matter and antimatter in the early universe. One of the greatest challenges in physics is to determine what happened to the antimatter, or why we see an asymmetry between matter and antimatter. (2020-04-15)

T2K results restrict possible values of neutrino CP phase
The T2K Collaboration has published new results showing the strongest constraint yet on the parameter that governs the breaking of the symmetry between matter and antimatter in neutrino oscillations. Using beams of muon neutrinos and muon antineutrinos, T2K has studied how these particles and antiparticles transition into electron neutrinos and electron antineutrinos, respectively. (2020-04-15)

Where did the antimatter go? Neutrinos shed promising new light
We live in a world of matter -- because matter overtook antimatter, though they were both created in equal amounts when our universe began. Neutrinos and the associated antimatter particles, antineutrinos, are reported by the T2K collaboration to have a high likelihood of differing behaviour that offers a promising path to explaining the mysterious disappearance of antimatter. This work involved French scientists at the CNRS, École Polytechnique - IPP, Sorbonne Université and the CEA. (2020-04-15)

Why didn't the universe annihilate itself? Neutrinos may hold the answer
New results from an experiment called T2K suggest that physicists are closer than ever before to answering a major mystery: Why didn't the universe annihilate itself in a humungous burst of energy not long after the Big Bang? (2020-04-15)

Strongest evidence yet that neutrinos explain how the universe exists
New data throws more support behind the theory that neutrinos are the reason the universe is dominated by matter. (2020-04-15)

Researchers look for dark matter close to home
Eighty-five percent of the universe is composed of dark matter, but we don't know what, exactly, it is. (2020-03-26)

Researchers detail how antineutrino detectors could aid nuclear nonproliferation
The article appears in the latest issue of Reviews of Modern Physics. In the paper, the scientists review current and projected readiness of various antineutrino-based monitoring technologies. (2020-03-19)

Radar and ice could help detect an elusive subatomic particle
A new study published today in the journal Physical Review Letters shows, for the first time, an experiment that could detect a class of ultra-high-energy neutrinos using radar echoes. (2020-03-06)

A massive star's dying breaths
Betelgeuse has been the center of significant media attention lately. The red supergiant is nearing the end of its life, and when a star over 10 times the mass of the Sun dies, it goes out in spectacular fashion. With its brightness recently dipping to the lowest point in the last hundred years, many space enthusiasts are excited that Betelgeuse may soon go supernova, exploding in a dazzling display that could be visible even in daylight. (2020-02-28)

From China to the South Pole: Joining forces to solve the neutrino mass puzzle
Study by Mainz physicists indicates that the next generation of neutrino experiments may well find the answer to one of the most pressing issues in neutrino physics. (2020-02-25)

Radio waves detect particle showers in a block of plastic
A cheap technique could detect neutrinos in polar ice, eventually allowing researchers to expand the energy reach of IceCube without breaking the bank. (2020-02-25)

APS tip sheet: Harnessing radar echoes for future neutrino detection
New high energy neutrino detection method could lead to a neutrino telescope able to observe neutrinos with energies beyond the current observable range. (2020-02-18)

Showing how the tiniest particles in our universe saved us from complete annihilation
Gravitational waves could contain evidence to prove that neutrino particles reshuffled matter and anti-matter, explains a new study. (2020-02-03)

Ultra-high energy events key to study of ghost particles
Physicists propose a new way to leverage data from ultra-high energy neutrinos from large neutrino telescopes such as the IceCube Neutrino Observatory in Antarctica. So far, all nonstandard interaction studies at IceCube have focused only on the low-energy atmospheric neutrino data. (2020-01-31)

Signals from inside the Earth: Borexino experiment releases new data on geoneutrinos
The Borexino collaboration has presented new results for the measurement of neutrinos originating from the interior of the Earth. With this update, the researchers have now been able to access 53 events -- almost twice as many as in the previous analysis of the data from the Borexino detector, which is located 1,400 meters below the Earth's surface. The results provide an exclusive insight into processes in the earth's interior that remain puzzling to this day. (2020-01-22)

Leptons help in tracking new physics
Electrons with 'colleagues' -- other leptons - are one of many products of collisions observed in the LHCb experiment at the Large Hadron Collider. According to theorists, some of these particles may be created in processes that extend beyond standard physics. The latest analysis verifies these predictions. (2019-12-16)

Giant neutrino telescope to open window to ultra-high-energy universe
Ultra-high-energy neutrinos, long sought, are crucial to understanding the high-energy Universe. Neutrinos are light, electrically neutral, and weakly interacting particles. They travel billions of light-years to Earth, bringing information about the most energetic processes of the Universe. The Giant Radio Array for Neutrino Detection (GRAND) is an ambitious next-generation detector designed to discover ultra-high-energy neutrinos, currently under construction. GRAND will also detect ultra-high-energy cosmic rays, gamma rays, and radio signals of astrophysical and cosmological origin. (2019-10-28)

Researchers home in on extremely rare nuclear process
A hypothetical nuclear process known as neutrinoless double beta decay ought to be among the least likely events in the universe. Now the international EXO-200 collaboration, which includes researchers from the Department of Energy's SLAC National Accelerator Laboratory, has determined just how unlikely it is. (2019-09-25)

KATRIN cuts the mass estimate for the elusive neutrino in half
An international team of scientists has announced a breakthrough in its quest to measure the mass of the neutrino, one of the most abundant, yet elusive, elementary particles in our universe. At the 2019 Topics in Astroparticle and Underground Physics conference in Toyama, Japan, leaders from the KATRIN experiment reported Sept. 13 that the estimated range for the rest mass of the neutrino is no larger than 1 electron volt, or eV. (2019-09-16)

Closing in on elusive particles
In the quest to prove that matter can be produced without antimatter, the GERDA experiment at the Gran Sasso Underground Laboratory in Italy is looking for signs of neutrinoless double beta decay. The experiment has the greatest sensitivity worldwide for detecting the decay in question. To further improve the chances of success, a follow-up project, LEGEND, uses an even more refined decay experiment. (2019-09-05)

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