학술논문
Evidence for the Higgs Boson Decay to a Z Boson and a Photon at the LHC
Document Type
Author
Source
Physical Review Letters. 132(2)
Subject
Language
English
ISSN
0031-9007
1079-7114
1079-7114
Abstract
The first evidence for the Higgs boson decay to a Z boson and a photon is presented, with a statistical significance of 3.4 standard deviations. The result is derived from a combined analysis of the searches performed by the ATLAS and CMS Collaborations with proton -proton collision datasets collected at the CERN Large Hadron Collider (LHC) from 2015 to 2018. These correspond to integrated luminosities of around 140 fb-1 for each experiment, at a center -of -mass energy of 13 TeV. The measured signal yield is 2.2 ± 0.7 times the standard model prediction, and agrees with the theoretical expectation within 1.9 standard deviations.