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
![Thumbnail](/bitstream/handle/10679/7229/Search%20for%20a%20heavy%20pseudoscalar%20Higgs%20boson%20decaying%20into%20a%20125%20GeV%20Higgs%20boson%20and%20a%20Z%20boson%20in%20final%20states%20with%20two%20tau%20and%20two%20light%20leptons%20at%20s%e2%88%9a%20%3d%2013%20TeV.pdf.jpg?sequence=4&isAllowed=y)
View/ Open
Type :
Article
Publication Status :
Published
Access :
openAccess
Abstract
A search is performed for a pseudoscalar Higgs boson, A, decaying into a 125 GeV 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 root s = 13 TeV is used, corresponding to an integrated luminosity of 35.9 fb(-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 -> ll tau tau. The observed upper limit at 95% confidence level ranges from 27 to 5 fb for A boson masses from 220 to 400 GeV, respectively. The results are used to constrain the extended Higgs sector parameters for two benchmark scenarios of the minimal supersymmetric standard model.
Source :
Journal of High Energy Physics
Date :
2020-03-11
Issue :
3
Publisher :
Springer Nature
Collections
Share this page