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Search for a low-mass pseudoscalar Higgs boson produced in association with a bb pair in pp collisions at s = 8 TeV
CMS Collaboration
CMS Collaboration
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Abstract
A search is reported for a light pseudoscalar Higgs boson decaying to a pair of τ leptons, produced in association with a View the MathML sourcebb‾ 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 fb−1. 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 product of cross section and branching fraction to τ pairs between 7 and 39 pb at the 95% confidence level. This excludes pseudoscalar A bosons with masses between 25 and 80 GeV, with SM-like Higgs boson negative couplings to down-type fermions, produced in association with View the MathML sourcebb‾ pairs, in Type II, two-Higgs-doublet models.
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Date
2016-05-06
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Elsevier
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Keywords
CMS, Physics, Higgs
Citation
Khachatryan, V., Erbacher, R., Carrillo Montoya, C. A., Carvalho, W., Górski, M., Kotlinski, D., ... & Lander, R. (2015). Search for a low-mass pseudoscalar Higgs boson produced in association with a $ b\bar {b} $ pair in pp collisions at $\sqrt {s}= $8 TeV. Phys. Lett., 758(CERN-PH-EP-2015-284), 296-320.