Observation of the Higgs Boson Decay to a Pair of ? Leptons With the CMS Detector

Yükleniyor...
Küçük Resim

Tarih

2018

Dergi Başlığı

Dergi ISSN

Cilt Başlığı

Yayıncı

Elsevier

Erişim Hakkı

Özet

A measurement of the H ???signal strength is performed using events recorded in proton–proton collisions by the CMS experiment at the LHC in 2016 at a center-of-mass energy of 13TeV. The data set corresponds to an integrated luminosity of 35.9fb?1. The H ???signal is established with a significance of 4.9 standard deviations, to be compared to an expected significance of 4.7 standard deviations. The best fit of the product of the observed H ???signal production cross section and branching fraction is 1.09+0.27?0.26times the standard model expectation. The combination with the corresponding measurement performed with data collected by the CMS experiment at center-of-mass energies of 7 and 8TeVleads to an observed significance of 5.9 standard deviations, equal to the expected significance. This is the first observation of Higgs boson decays to ?leptons by a single experiment.

Açıklama

Anahtar Kelimeler

CMS, Physics, Tau, Higgs, Observation, LHC

Kaynak

WoS Q Değeri

Q2

Scopus Q Değeri

Q1

Cilt

Sayı

Künye

Physics Letters B 779 (2018) 283–316