The first evidence for the Higgs boson decay to a Formula Presented 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 Formula Presented for each experiment, at a center-of-mass energy of 13 TeV. The measured signal yield is Formula Presented times the standard model prediction, and agrees with the theoretical expectation within 1.9 standard deviations.

Aad, G., Abbott, B., Abeling, K., Abicht, N., Abidi, S., Aboulhorma, A., et al. (2024). Evidence for the Higgs boson decay to a Z boson and a photon at the LHC. PHYSICAL REVIEW LETTERS, 132(2) [10.1103/PhysRevLett.132.021803].

Evidence for the Higgs boson decay to a Z boson and a photon at the LHC

Monti F.;Xiao J.;Benaglia A.;Boldrini G.;Brivio F.;Cetorelli F.;De Guio F.;Dinardo M. E.;Ghezzi A.;Govoni P.;Guzzi L.;Lucchini M. T.;Malberti M.;Massironi A.;Moroni L.;Paganoni M.;Pinolini B. S.;Ragazzi S.;de Fatis T. T.;Zuolo D.;Ortona G.;Valsecchi D.;Fiorendi S.;
2024

Abstract

The first evidence for the Higgs boson decay to a Formula Presented 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 Formula Presented for each experiment, at a center-of-mass energy of 13 TeV. The measured signal yield is Formula Presented times the standard model prediction, and agrees with the theoretical expectation within 1.9 standard deviations.
Articolo in rivista - Articolo scientifico
Bosons; Large datasets; Statistics
English
12-gen-2024
2024
132
2
021803
none
Aad, G., Abbott, B., Abeling, K., Abicht, N., Abidi, S., Aboulhorma, A., et al. (2024). Evidence for the Higgs boson decay to a Z boson and a photon at the LHC. PHYSICAL REVIEW LETTERS, 132(2) [10.1103/PhysRevLett.132.021803].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/478119
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