Articles tagged with Cosmic Neutrinos
Researchers found a compact core in the 'Shadow Blaster' galaxy, which is likely heating gas and dust through intense star formation, producing high-energy neutrinos. This alternative pathway could contribute up to 20% of the high-energy neutrino background.
A team of physicists at UMass Amherst has proposed a new model for black holes, the 'dark charge' model, which explains high-energy neutrinos and solves cosmic mysteries. The model suggests that quasi-extremal primordial black holes, with a 'dark charge,' could be the missing link in explaining the universe's fundamental nature.
A new study has created a comprehensive model of neutrino mapping, revealing that most stars in the Milky Way generate and emit these ghost particles. The research provides valuable insights into the universe, offering a unique way to explore cosmic phenomena.
Researchers have successfully detected the interaction of neutrinos with carbon atoms in a vast underground detector, marking a breakthrough in understanding stellar processes, nuclear fusion, and the universe. The observation uses a unique 'delayed coincidence' method to separate real neutrino interactions from background noise.
Physicists have analyzed how neutrinos change 'flavor' as they travel through the cosmos, gaining insights into their masses and evolution. The study's findings hint at possible Charge-Parity violation in neutrinos and their antimatter counterparts, with researchers seeking more data to answer fundamental questions about the universe.
Researchers found that neutrino flavor transformations alter the composition and signals of what's left after a neutron star collision, impacting the creation of heavy metals and rare earth elements. The simulations also influenced the matter ejected from the merger and electromagnetic emissions detectable from Earth.
Recent detection of a record-setting neutrino may be the first evidence of Hawking radiation from a primordial black hole. If confirmed, it would indicate that PBHs make up most of dark matter in the universe.
Scientists have developed a new device to probe the existence of dark matter particles across a wide mass range below one mega electron volt. The QROCODILE experiment uses an improved superconducting nanowire single-photon detector to detect changes in direction, which can help filter out non-dark-matter events.
The Jiangmen Underground Neutrino Observatory (JUNO) has successfully completed its 20,000-ton liquid scintillator detector filling and started data taking. This achievement marks a significant step towards answering fundamental questions about the nature of matter and the universe.
A team from Norwegian University of Science and Technology proposes that supermassive black hole winds accelerate particles to create the mysterious high-energy radiation. The winds, which can reach speeds of up to half the speed of light, may be responsible for the creation of ultra-high-energy cosmic rays.
Researchers at Dartmouth College propose a new theory on the origin of dark matter, suggesting it could have formed from high-energy massless particles that rapidly condensed into cold, heavy particles. The theory can be tested using existing observational data, including the Cosmic Microwave Background radiation.
The Taishan Antineutrino Observatory's unique plastic scintillator module design boasts exceptional performance in muon identification efficiency, surpassing 99.67% even at high thresholds. This scalable solution establishes a transferable technique for next-generation neutrino detectors requiring muon identification efficiency >99.5% ...
The Super-Kamiokande and T2K Collaborations present a joint measurement of neutrino oscillation parameters using atmospheric and beam neutrino data. The analysis finds a 1.9𝜎 exclusion of 𝐶𝑃 conservation and a 1.2𝜎 exclusion of the inverted mass ordering.
A study published in JCAP has established upper limits on the strength of quantum gravity effects on neutrino oscillations, providing valuable insights into the long-sought theory. The results show no signs of decoherence, a phenomenon that could be a key indicator of quantum gravity's presence.
Ben Jones, a UTA physicist, has been recognized for his contributions to developing advanced instruments used in particle physics research. His work focuses on uncovering the origin of neutrino mass and sheds light on fundamental physics at extremely small scales.
The KM3NeT collaboration has detected the highest-energy neutrino ever captured by a similar experiment, with an estimated energy of 220 PeV. This finding provides evidence that high-energy neutrinos are produced in the universe and opens new avenues for observing extreme astrophysical phenomena.
The detection of a single muon from a cosmic neutrino interacting with the ARCA detector provides compelling evidence for the origin of the event. The ultra-high-energy neutrino has an estimated energy of 220 PeV, opening a new observational window on the Universe and expanding our understanding of high-energy phenomena.
Researchers at Cal Poly and an international team are exploring unproven theories related to nuclear decay and the nature of matter. They aim to detect a type of decay that is currently forbidden by physics laws, which could reveal insights into the universe's origins.
Dr. Kevin J. Kelly, an assistant professor at Texas A&M University, has received the Henry Primakoff Award for Early-Career Particle Physics for his significant contributions to neutrino physics and proposing novel directions for dark matter research. He will deliver an invited lecture on his research at a future APS meeting.
The UT Arlington Neutrino Group has successfully identified the detector's neutrino interactions for the first time in a decade-long project. The group's work on the SBND experiment aims to study neutrino oscillation and search for evidence of a fourth neutrino, with the potential to redefine our understanding of the universe.
Dr. Zewei Xiong has received an ERC Starting Grant to study collective neutrino oscillations in supernovae and neutron-star mergers. His project NeuTrAE aims to clarify lingering puzzles regarding neutrino flavor evolution, a crucial aspect of particle and nuclear astrophysics.
A team from the University of Copenhagen contributed to an Antarctic experiment studying neutrinos, which may hold the answer to whether gravity also exists at the quantum level. The study found no conclusive changes in neutrino properties, but the results do not exclude the possibility of quantum gravity.
Scientists will study neutrinos to solve big questions about the universe. UTA is building portions of two detectors in South Dakota and training students to help with the project.
A new study published in Science provides conclusive evidence for the presence of a neutron star at the center of supernova SN 1987A, solving a decades-long mystery. The detection was made using the James Webb Space Telescope and reveals narrow emission lines from ionized argon and sulphur atoms.
The Paarl Africa Underground Laboratory (PAUL) will be a game-changer for universities in South Africa and its partners, offering benefits through new jobs and research opportunities. The laboratory will enable scientists to study dark matter and neutrinos in a radiation-free environment.
A study analyzed 145 blazars to understand the contribution of gamma-ray flares to neutrino emission. Researchers found that blazars with lower flare duty cycles and energy fractions are more numerous, indicating a correlation between their flare activity and neutrino production.
Researchers have carried out the largest ever computer simulations to investigate the Universe's evolution, taking into account ordinary matter and dark energy. The FLAMINGO simulations provide a detailed picture of virtual galaxies and galaxy clusters, allowing for comparisons with observations from new high-powered telescopes.
Researchers at Hokkaido University have discovered that elusive neutrinos can interact with photons in ways not previously detected under extreme conditions. This finding has implications for understanding quantum mechanical interactions of fundamental particles and may help reveal details of the solar corona heating puzzle.
Researchers from the US and Germany report a realistic contender to measure the elusive neutrino mass using Cyclotron Radiation Emission Spectroscopy. The project tracks electrons generated by beta decay to reveal the neutrino mass, aiming for scalability beyond existing technology.
Researchers at Ohio State University have developed a new framework for studying neutrino self-interactions using supernovae. They found that in the burst case, unprecedented sensitivity to neutrino self-interactions is possible even with sparse data from SN 1987A and conservative analysis assumptions.
IceCube researchers have produced an image of the Milky Way using neutrinos for the first time, suggesting that cosmic ray interactions are more intense in the galaxy's center than previously thought. This achievement is made possible by advancements in Machine Learning, enabling deeper analysis of the data.
The IceCube Neutrino Observatory has produced an image of the Milky Way using neutrinos, revealing it is a neutrino desert. The observation suggests the galaxy produces significantly fewer high-energy neutrinos than distant galaxies.
Researchers at U.S. National Science Foundation's IceCube Neutrino Observatory reveal a galactic portrait made with particles of matter, unlike any before, by determining the origin of thousands of neutrinos. The breakthrough allows for the first 'ghost particle' image of the Milky Way galaxy.
The IceCube Neutrino Observatory has produced an image of the Milky Way using neutrinos for the first time. The high-energy neutrinos were detected from the galactic plane, confirming what is known about our galaxy and cosmic ray sources.
The SNO+ experiment has successfully detected reactor neutrinos using plain water, showing that such detectors can play a role in ensuring nuclear non-proliferation. The measurement overcomes challenges of detecting tiny signals from distant reactors.
Indiana University researchers and collaborators have completed a six-year experiment to study the fundamental properties of neutrinos. They observed nearly 10^26 atoms over six years, pushing the boundaries of detection for this rare phenomenon.
Researchers have made the first accurate image of the proton using neutrinos instead of light as the probe in the MINERvA experiment. The study provides measurements of the proton's structure with unbound protons, helping to build more complete theories of neutrino interactions.
Researchers found that kilonovae, caused by neutron star collisions, produce spherical explosions with symmetrical shapes. The discovery may provide a new key to fundamental physics and measuring the Universe's age.
Researchers from the University of Rochester and MINERvA collaboration used beams of neutrinos at Fermilab to investigate proton structure. This technique offers a new view on measuring protons using neutrino scattering, providing insights into nuclear effects and improving future measurements of neutrino properties.
A high-energy neutrino source has been detected in the spiral galaxy NGC 1068, providing new insights into the mysteries of active galaxies. The discovery was made using the IceCube Neutrino Observatory and statistical methods, allowing researchers to distinguish between the weak signal and strong background noise.
A team of researchers has discovered a steady stream of neutrinos emitted by the active galaxy NGC 1068, using the IceCube Neutrino Observatory. This detection provides valuable information about the extreme particle acceleration and production processes occurring within the galaxy's central region.
Researchers have found evidence of high-energy neutrino emission from NGC 1068, an active galaxy in the constellation Cetus. The detection was made at the National Science Foundation-supported IceCube Neutrino Observatory, which reported its first observation of a high-energy astrophysical neutrino source in 2018.
Researchers propose using precision data from upcoming experiments to test the cosmological collider effect and unravel the mystery of matter's origin. They suggest that leptogenesis, a well-known mechanism, could be used to explain the imbalance between matter and antimatter in the early universe.
Daya Bay Reactor Neutrino Experiment has produced the most precise measurement yet of theta13, a key parameter for understanding how neutrinos change their 'flavor.' The result will help physicists explore mysteries surrounding matter and the universe.
The P-ONE initiative seeks to build a large-scale neutrino observatory in the Pacific Ocean to study high-energy cosmic particles. The project aims to uncover the origins of extragalactic neutrinos and potentially reveal the nature of dark matter.
Researchers at Penn State suggest that supermassive black hole coronae could be the source of high-energy cosmic neutrinos, exceeding expectations. The new model predicts electromagnetic counterparts in soft gamma-rays, with next-generation detectors poised to explore this possibility.
A research group led by IceCube scientist Elisa Resconi provides evidence that the particles detected by the IceCube neutrino telescope originate from a galaxy four billion light-years away. The team used open access archive data to examine a 1.33-degree sky region around the position of the high-energy neutrino, and found only one bla...
Researchers using NSF's IceCube Neutrino Observatory data confirmed a single neutrino's origin as a previously known blazar, providing the first definitive evidence of proton acceleration by black holes. This discovery sheds light on cosmic ray origins and supports multi-messenger astronomy.
Researchers from Technical University of Munich have determined the cosmic origin of highest-energy neutrinos, finding they emanate from a galaxy four billion light-years away. The team used open access archive data and specialized software to rule out other origins, confirming blazar TXS 0506+056 as the source.
A breakthrough in the search for cosmic particle accelerators has been made by tracing a single neutrino back to a galaxy over three billion light years away. The discovery was made using an internationally organized astronomical dragnet and confirms that high-energy cosmic rays are produced in cosmic particle accelerators.
A team of University of Alabama professors, led by Dr. Marcos Santander, have discovered evidence of an active galaxy emitting neutrinos, which could revolutionize our understanding of the universe. The findings were published in the journal Science and mark a significant breakthrough in multimessenger astronomy.
Researchers found intriguing contradictions between IceCube neutrino data and Fermi gamma-ray data, suggesting 'hidden accelerator' origins of high-energy cosmic neutrinos. Proton-photon interactions may block high-energy gamma rays from escaping, enabling the use of neutrinos as new probes of dense astrophysical environments.
Researchers at the IceCube Neutrino Observatory have gathered powerful new evidence in support of previous observations confirming the existence of cosmic neutrinos. The detection of ultra-high-energy muons provides independent confirmation of astrophysical neutrinos from our galaxy and cosmic neutrinos from sources outside the Milky Way.
The IceCube collaboration has detected 28 high-energy particle events, providing solid evidence for astrophysical neutrinos from cosmic sources. By studying these neutrinos, scientists can learn about distant astrophysical phenomena and potentially identify their sources.
Researchers at the University of Delaware part of an international team that observed 28 high-energy particle events coming from cosmic accelerators, possibly exploding stars or accreting black holes. The discovery marks the first solid evidence of neutrinos originating from sources outside our solar system.
The Wilkinson Microwave Anisotropy Probe (WMAP) has revealed a sea of cosmic neutrinos permeating the universe and provides evidence that the first stars took more than half a billion years to create a cosmic fog. The new data also places tight constraints on the burst of expansion in the universe's first trillionth of a second.
Scientists have nearly doubled the size of the IceCube detector under construction at the South Pole, adding 480 optical modules to the existing array. The detector will be capable of detecting high-energy cosmic neutrinos and shedding light on mysterious events like gamma ray bursts and dark matter.
Researchers create method to determine subatomic particle mass based on speed of material streaming from a supernova, which could improve nuclear reaction understanding and dark matter detection. The technique hinges on the formation of black holes in about half of observed supernovas, allowing for precise timing of neutrino arrival.
Raymond Davis Jr.'s groundbreaking work on detecting solar neutrinos led to a significant discovery of the sun's energy production and sparked ongoing investigations into the cause of the solar neutrino deficit. Masatoshi Koshiba's contributions to neutrino astronomy with his Kamiokande detectors also earned him the Wolf Prize.
Physicist Janet Conrad is building an underground vat to trap oscillating neutrinos and observe their transformation into another type. The experiment aims to prove that neutrinos have mass, a discovery that has already shaken the physics world.