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Search for a low-mass pseudoscalar Higgs boson produced in association with a $b\barb$ pair in pp collisions at $\sqrt{s} =$ 8 TeV

Submit Time: 2016-09-12
Author: Khachatryan, Vardan and others 1 ;
Institute: 1.CMS Collaboration;

Abstracts

A search is reported for a light pseudoscalar Higgs boson decaying to a pair of tau leptons, produced in association with a b b-bar pair, in the context of two-Higgs-doublet models. The results are based on pp collision data at a centre-of-mass energy of 8 TeV collected by the CMS experiment at the LHC and corresponding to an integrated luminosity of 19.7 inverse femtobarns. Pseudoscalar boson masses between 25 and 80 GeV are probed. No evidence for a pseudoscalar boson is found and upper limits are set on the production cross section times branching fraction to tau pairs between 7 and 39 pb at the 95% confidence level. This excludes pseudoscalar A bosons with masses between 25 and 80 GeV, with standard model-like Higgs boson negative couplings to down-type fermions, produced in association with b b-bar pairs, in Type-II, two-Higgs-doublet models.
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Recommended references: Khachatryan, Vardan and others.(2016).Search for a low-mass pseudoscalar Higgs boson produced in association with a $b\barb$ pair in pp collisions at $\sqrt{s} =$ 8 TeV.[ChinaXiv:201609.00789] (Click&Copy)
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[V1] 2016-09-12 09:01:30 chinaXiv:201609.00789V1 Download
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