High Energy Particle Physics

   

Elusive Fourth Kind of Neutrino

Authors: George Rajna

Although three types of neutrino are known, scientists are searching for a possible fourth—the sterile neutrino, whose existence has been teased but never clearly confirmed. [19] A pair of researchers with the Niels Bohr Institute in Denmark has come up with a possible explanation for the excess of electron neutrinos detected by researchers at the IceCube Neutrino Observatory. [18] The largest liquid-argon neutrino detector in the world has just recorded its first particle tracks, signaling the start of a new chapter in the story of the international Deep Underground Neutrino Experiment (DUNE). [17] While these experiments seem miniature in comparison to others, they could reveal answers about neutrinos that have been hiding from physicists for decades. [16] In a paper published today in the European Physical Journal C, the ATLAS Collaboration reports the first high-precision measurement at the Large Hadron Collider (LHC) of the mass of the W boson. [15]

Comments: 51 Pages.

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[v1] 2019-01-07 09:16:23

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