# Search for a pseudoscalar boson decaying into a Z boson and the 125 GeV Higgs boson in llbb final states

Abstract : Results are reported on a search for decays of a pseudoscalar A boson into a Z boson and a light scalar h boson, where the Z boson decays into a pair of oppositely-charged electrons or muons, and the h boson decays into b anti-b. The search is based on data from proton-proton collisions at a center-of-mass energy sqrt(s)=8 TeV collected with the CMS detector, corresponding to an integrated luminosity of 19.7 inverse femtobarns. The h boson is assumed to be the recently discovered standard model-like Higgs boson with a mass of 125 GeV. With no evidence for signal, upper limits are obtained on the product of the production cross section and the branching fraction of the A boson in the Zh channel. Results are also interpreted in the context of two Higgs doublet models.
Type de document :
Article dans une revue
Physics Letters B, Elsevier, 2015, 748, pp.221-243. 〈10.1016/j.physletb.2015.07.010〉

http://hal.in2p3.fr/in2p3-01144115
Contributeur : Sylvie Flores <>
Soumis le : mardi 21 avril 2015 - 07:33:01
Dernière modification le : jeudi 10 mai 2018 - 02:00:29

### Citation

V. Khachatryan, M. Besançon, F. Couderc, M. Dejardin, D. Denegri, et al.. Search for a pseudoscalar boson decaying into a Z boson and the 125 GeV Higgs boson in llbb final states. Physics Letters B, Elsevier, 2015, 748, pp.221-243. 〈10.1016/j.physletb.2015.07.010〉. 〈in2p3-01144115〉

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