Search for a heavy pseudoscalar Higgs boson decaying into a 125 GeV Higgs boson and a Z boson in final states with two tau and two light leptons at √s = 13 TeV
Fecha
2020Materia
Abstract
A search is performed for a pseudoscalar Higgs boson, A, decaying into a 125GeV Higgs boson h and a Z boson. The h boson is specifically targeted in its decay into a pair of tau leptons, while the Z boson decays into a pair of electrons or muons. A data sample of proton-proton collisions collected by the CMS experiment at the LHC at √s = 13TeV is used, corresponding to an integrated luminosity of 35.9fb−1. No excess above the standard model background expectations is observed in data. A model-i ...
A search is performed for a pseudoscalar Higgs boson, A, decaying into a 125GeV Higgs boson h and a Z boson. The h boson is specifically targeted in its decay into a pair of tau leptons, while the Z boson decays into a pair of electrons or muons. A data sample of proton-proton collisions collected by the CMS experiment at the LHC at √s = 13TeV is used, corresponding to an integrated luminosity of 35.9fb−1. No excess above the standard model background expectations is observed in data. A model-independent upper limit is set on the product of the gluon fusion production cross section for the A boson and the branching fraction to Zh → llττ. The observed upper limit at 95% confidence level ranges from 27 to 5fb for A boson masses from 220 to 400GeV, respectively. The results are used to constrain the extended Higgs sector parameters for two benchmark scenarios of the minimal supersymmetric standard model. ...
En
The journal of high energy physics. Trieste. No. 3 (Mar. 2020), 65, 46 p.
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