A new LHCb analysis confirms a previously observed tension with the Standard Model, but more data and improved theoretical calculations are needed to determine whether new physics is at play.

In nuclear beta decay an up quark ‘u’ in a proton converts into an up down quark ‘d,’ turning the proton into a neutron and emitting a positron and a neutrino. This work affects interpretation of beta ...

Weighted Z-photon(γ) mass distribution of events satisfying the H→Zγ selection in data. Events are weighted by the expected signal and background in a Zγ mass window containing 68% of the expected ...

Deep under a mountain in Italy, researchers continue to push the boundaries of science with an experiment that could rewrite the Standard Model of Particle Physics. Standard “double beta decay” is ...

Red lines show the disintegration of a B-sub-s into two muons in the CMS camera at the Large Hadron Collider. Yello, green and blue are used to denote particles other than muons. Purdue University ...

Double beta decay, one of the rarest nuclear processes, offers a unique portal into the fundamental properties of neutrinos and the conservation of lepton number. Experimental strategies have evolved ...

Neutrino mass measurements remain one of the most challenging endeavours in contemporary physics. Direct measurement techniques, particularly those probing the endpoint of the tritium β-decay spectrum ...