Tag Archive for 'Neutrino'

B.J.P. Jones & J.A. Formaggio devise an idea for a laser that shoots a beam of neutrinos. Image credit: Gemini AI.

Physicists Introduce Concept of Neutrino Laser

Sep 8, 2025 by News Staff

Super-cooling radioactive atoms could produce a laser-like neutrino beam, according to a duo of physicists from MIT and the University of Texas at Arlington....

ANITA was placed in Antarctica because there is little chance of interference from other signals; to capture the emission signals, the balloon-borne radio detector is sent to fly over stretches of ice, capturing what are called ice showers. Image credit: Stephanie Wissel / Penn State.

Two Anomalous Radio Signals Detected Coming from Antarctic Ice

Jun 13, 2025 by News Staff

The unusual radio pulses were detected by the Antarctic Impulsive Transient Antenna (ANITA) experiment, a range of instruments flown on NASA balloons high...

Interior view of the KATRIN main spectrometer. Image credit: M. Zacher / KATRIN Collaboration.

KATRIN Physicists Measure Upper Mass Limit of Neutrino

Apr 11, 2025 by News Staff

Physicists with the KArlsruhe TRItium Neutrino (KATRIN) experiment report the most precise measurement of the upper mass limit of the neutrino to date,...

A three-vector-boson event recorded by ATLAS, with one W boson decaying to an electron and a neutrino, one W boson decaying to a muon and a neutrino, and a Z boson decaying to two muons; muons are shown by red lines, the electron by a green line, and ‘missing energy’ from the neutrino by a dashed white line. Image credit: ATLAS / CERN.

CERN Physicists Observe Production of Weak Boson Triplets

Feb 27, 2025 by News Staff

Physicists with the ATLAS Collaboration at CERN’s Large Hadron Collider have announced the first observation of VVZ production — a rare combination...

Visual impression of the ultra-high energy neutrino event observed in KM3NeT/ARCA. Image credit: KM3NeT.

KM3NeT Telescope Detects Most Energetic Cosmic Neutrino Yet

Feb 12, 2025 by News Staff

Dubbed KM3-230213A, the newly-detected neutrino carried an astonishing energy of 220 peta-electronvolts (PeV), making it one of the most powerful elementary...

Event displays identified by the FASER Collaboration as candidates for an νe (left) and a νμ (right) interacting in the detector; invisible here, the neutrinos arrive from the left and then interact to create multiple tracks spraying out to the right (colored lines), one of which is identified as a charged lepton. Image credit: FASER Collaboration.

CERN Physicists Measure High-Energy Neutrino Interaction Strength

Apr 8, 2024 by News Staff

The Forward Search Experiment (FASER) at CERN’s Large Hadron Collider (LHC) is designed to search for extremely weakly interacting particles. Such particles...

An artist’s composition of the Milky Way seen through a neutrino lens (blue). Image credit: IceCube / NSF / Lily Le / Shawn Johnson / ESO / S. Brunier.

IceCube Detects High-Energy Neutrino Emission from Milky Way’s Galactic Plane

Jun 30, 2023 by News Staff

Observations of high-energy astrophysical neutrinos have shown that they mostly originate from extragalactic sources such as active galaxies. However,...

NASA’s Fermi Gamma-ray Space Telescope (top left) and the IceCube Neutrino Observatory (sensor strings, bottom). Image credit: NASA / Fermi / Aurore Simonnet, Sonoma State University.

Could Quantum Properties of Spacetime Slow Down Neutrinos?

Jun 13, 2023 by Enrico de Lazaro

Using data from NASA’s Fermi Gamma-ray Space Telescope and the IceCube Neutrino Observatory, astrophysicists have found preliminary evidence for gamma-ray...

The FASER Collaboration reports the first observation of collider neutrino events. Image credit: FASER Collaboration.

Physicists Detect Collider Neutrinos for First Time

Mar 24, 2023 by News Staff

Using the ForwArd Search ExpeRiment (FASER), a particle detector installed at CERN, particle physicists were able to detect very high energy neutrinos...

ATLAS candidate event for a Higgs boson decaying into two Z bosons that in turn decay into two muons and two electrons. Image credit: CERN.

ATLAS Physicists Measure Decay Width of Higgs Boson

Nov 29, 2022 by News Staff

Physicists from the ATLAS Collaboration at CERN’s Large Hadron Collider (LHC) have performed new measurements of Higgs boson’s decay width, which is...

This image shows the barred spiral galaxy Messier 77, which lies in the constellation Cetus, about 62 million light-years away. Image credit: ESO.

IceCube Observatory Detects High-Energy Neutrinos from Messier 77

Nov 6, 2022 by News Staff

Messier 77, also known as NGC 1068, LEDA 10266 and Cetus A, is a barred spiral galaxy in the constellation of Cetus. This image shows the barred spiral...

An artist’s illustration of neutrinos originating from a high-energy blazar. Image credit: Benjamin Amend, Clemson University.

High-Energy Astrophysical Neutrinos are Coming from Blazars: Study

Jul 14, 2022 by Natali Anderson

Neutrinos are the most elusive particles in the Universe, capable of traveling nearly unimpeded across it. Despite the vast amount of data collected, a...

An illustration of the idea that a neutrino (v) and an electron (e) interact with a nuclei in comparable ways. Image credit: Jefferson Lab.

New Measurements Shed Light on How Neutrinos Change Their Flavor

Apr 13, 2022 by News Staff

Physicists from the MicroBooNE Collaboration at Fermilab have performed a first-of-its-kind measurement: a comprehensive set of the energy-dependent neutrino-argon...

Illustration of the 70-m-long KATRIN beamline: the transport of β-electrons and magnetic adiabatic collimation of their momenta p are illustrated; (a-f) view into the tritium source depicts three systematic effects: molecular excitations during β-decay (a), scattering of electrons off the gas molecules (b) and spatial distribution of the electric potential in the source Usrc(r, z) (c); the view into the spectrometer illustrates the main background processes arising from radon decays inside the volume of the spectrometer (d), highly excited Rydberg atoms sputtered off from the structural material via α-decays of 210Po (e) and positive ions created in a Penning trap between the two spectrometers (f); low-energy electrons, created in the volume as a consequence of radon decays or Rydberg-atom ionizations, can be accelerated by qUana towards the focal-plane detector, making them indistinguishable from signal electrons. Image credit: KATRIN Collaboration, doi: 10.1038/s41567-021-01463-1.

KATRIN Experiment Sets New Limit on Neutrino Mass

Feb 15, 2022 by Enrico de Lazaro

Since the discovery of neutrino oscillations, physicists know that neutrinos have non-zero mass. However, the absolute neutrino-mass scale remains unknown....

A Higgs boson candidate transforming into four muons (red lines). Image credit: CERN.

Higgs Boson Has Tiny Lifespan, New Research Confirms

Dec 6, 2021 by News Staff

The Higgs boson is peculiar in many respects. Like most other elementary particles, it is unstable and lives only for an extremely short time, 1.6*10-22...

FASERν event displays of two of the neutral vertices in the yz projection longitudinal to the beam direction (left) and in the view transverse to the beam direction (right). Image credit: FASER Collaboration.

CERN Physicists Detect Collider Neutrinos for First Time

Nov 26, 2021 by News Staff

Physicists from the Forward Search Experiment (FASER) Collaboration have observed six neutrino interactions during a pilot run of FASERν, a compact emulsion...

Display of a candidate WWW→ 3 leptons + neutrinos event; the event is identified by its decay to a muon (red line), two electrons (blue lines) and missing transverse energy (white dashed line). Image credit: CERN.

CERN Physicists Observe Triple W-Boson Production

Jul 27, 2021 by News Staff

Physicists from the ATLAS Collaboration at CERN’s Large Hadron Collider (LHC) have observed a process called WWW production: the simultaneous creation...

This composite image, taken by NASA’s Chandra X-ray Observatory and the NASA/ESA Hubble Space Telescope, shows the supernova remnant Cassiopeia A; the different colors represent elements detected by Chandra: iron (orange), oxygen (purple), and the amount of silicon compared to magnesium (green); titanium (light blue) detected previously by NASA’s NuSTAR telescope is shown, but not the different type of titanium found by Chandra. Image credit: NASA / CXC / RIKEN / Sato et al. / NuSTAR.

Chandra Detects Stable Isotope of Titanium in Cassiopeia A

Apr 28, 2021 by News Staff

Astronomers using NASA’s Chandra X-ray Observatory have detected stable titanium, along with chromium and iron, blasting out from the center of the supernova...

A view of the accretion disk around the supermassive black hole, with jet-like structures flowing away from the disk. The extreme mass of the black hole bends spacetime, allowing the far side of the accretion disc to be seen as an image above and below the black hole. Image credit: Science Communication Lab, DESY.

Astrophysicists Detect High-Energy Neutrino from Tidal Disruption Event

Feb 24, 2021 by News Staff

The majority of supermassive black holes lie dormant and starved of fuel; these hidden giants can be temporarily illuminated when an unlucky star passes...

On August 31, 2012, a long filament of solar material that had been hovering in the Sun’s atmosphere, the corona, erupted out into space at 4:36 p.m. EDT. The CME traveled at over 900 miles per second. It did not travel directly toward Earth, but did connect with Earth’s magnetic environment, or magnetosphere, with a glancing blow, causing aurora to appear on the night of September 3. Image credit: NASA’s Goddard Space Flight Center.

Physicists Detect Solar CNO Neutrinos for First Time

Nov 26, 2020 by News Staff

For most of their existence, stars are fuelled by the fusion of hydrogen into helium. Fusion proceeds via two processes that are well understood theoretically:...