Blazars are a special kind of rare active galactic nuclei. They are currently the most likely candidates for high-energy neutrinos. Their relativistic jets may be the origin area of super-high-energy cosmic rays and neutrinos.
Astronomy
Mar 31, 2020
0
6
Eighty-five percent of the universe is composed of dark matter, but we don't know what, exactly, it is.
General Physics
Mar 26, 2020
38
611
One of the greatest mysteries in astrophysics these days is a tiny subatomic particle called a neutrino, so small that it passes through matter—the atmosphere, our bodies, the very Earth—without detection.
General Physics
Mar 6, 2020
1
963
Argon. It's all around us. It's in the air we breathe, incandescent lights we read by and plasma globes many of us played with as children.
General Physics
Mar 3, 2020
0
36
Among the most exciting challenges in modern physics is the identification of the neutrino mass ordering. Physicists from the Cluster of Excellence PRISMA+ at Johannes Gutenberg University Mainz (JGU) play a leading role ...
General Physics
Feb 25, 2020
6
52
When neutrinos crash into water molecules in the billion-plus tons of ice that make up the detector at the IceCube Neutrino Observatory in Antarctica, more than 5,000 sensors detect the light of subatomic particles produced ...
General Physics
Feb 25, 2020
1
76
For over a century, scientists have been observing very high-energy charged particles called cosmic rays arriving from outside Earth's atmosphere. The origins of these particles are very difficult to pinpoint because the ...
General Physics
Feb 17, 2020
0
135
Physicists at Washington University in St. Louis have proposed a way to use data from ultra-high energy neutrinos to study interactions beyond the standard model of particle physics. The 'Zee burst' model leverages new data ...
General Physics
Jan 31, 2020
2
492
Neutrinos are the lightest of all the known particles that have mass. Yet their behavior as they travel could help answer one of the greatest puzzles in physics: why the present-day universe is made mostly of matter when ...
General Physics
Nov 29, 2019
0
47
An international team of researchers has used a new spectrometer to find and set an upper limit for the mass of a neutrino. In their paper published in the journal Physical Review Letters, the group describes how they came ...
