Evidence for the Higgs Boson Decay to a Z Boson and a Photon at the LHC

(CMS Collaboration; ATLAS Collaboration) Aad, Georges ; ... ; Giljanović, Duje ; Godinović, Nikola ; Lelas, Damir ; Šćulac, Ana ; Kovač, Marko ; Šćulac, Toni ; Bargassa, Pedrame ; Brigljević, Vuko ; ... ; Chitroda, Bhakti Kanulal; Ferenček, Dinko ; Mishra, Saswat ; Starodumov, Andrey ; Šuša, Tatjana ; ... ; Roguljić, Matej ; ... ; Zhokin, A. (2024) Evidence for the Higgs Boson Decay to a Z Boson and a Photon at the LHC. Physical Review Letters, 132 (2). ISSN 0031-9007

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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.

Item Type:	Article
Uncontrolled Keywords:	high energy physics; experimental particle physics; LHC; CMS; S126.6; S126SZG
Subjects:	NATURAL SCIENCES NATURAL SCIENCES > Physics NATURAL SCIENCES > Physics > Physics of Elementary Particles and Fields
Divisions:	Centre for detectors, sensors and electronics Division of Experimental Physics
Depositing User:	Diana Mikoč Radešić
Date Deposited:	07 Oct 2024 13:18
URI:	http://fulir.irb.hr/id/eprint/9115
DOI:	10.1103/PhysRevLett.132.021803

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