Related topics: standard model

Size of helium nucleus measured more precisely than ever before

In experiments at the Paul Scherrer Institute PSI, an international research collaboration has measured the radius of the atomic nucleus of helium five times more precisely than ever before. With the aid of the new value, ...

Russian scientists on the verge of solving the 'muon puzzle'

It may only take scientists a few more years to solve one of the biggest puzzles in modern elementary particle physics, the so-called "muon puzzle." Russian scientists from the National Research Nuclear University (MEPhI) ...

EUROnu project recommends building Neutrino Factory

(Phys.org) —The European Union's Seventh Framework Programme, EUROnu, has submitted its findings to a panel at CERN. Charged with choosing a project to study the nature of matter and antimatter, the project members have ...

Tracking hydrogen movement using subatomic particles

A muon is an unstable subatomic particle similar to an electron but with much greater mass. The lifetime of a muon is only a couple of microseconds, but this is long compared with the lifetimes of many unstable subatomic ...

Examining the delicate balance of lepton flavors

In a talk at the ongoing Rencontres de Moriond conference, the ATLAS collaboration presented the result of its latest test of a key principle of the Standard Model of particle physics known as lepton flavor universality. ...

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