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

A search is reported for a light pseudoscalar Higgs boson decaying to a pair of τ leptons, produced in association with a $$b\bar{b}$$ 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. There was no evidence for a pseudoscalar boson found and upper limits were set on the production cross section times branching fraction to t pairs between 7 and 39 pb at the 95% confidence level. This search excludes a pseudoscalar Higgs boson with mass below 80 GeV, in Type II two-Higgs-doublet models with a negative coupling of standard model-like Higgs boson to down-type fermions.
Authors:
 [1]
  1. Yerevan Physics Inst. (YerPhI) (Armenia). et al.
Publication Date:
OSTI Identifier:
1252276
Report Number(s):
FERMILAB-PUB-15-514-CMS
Journal ID: ISSN 0031-9007; arXiv eprint number arXiv:1511.03610
Grant/Contract Number:
AC02-07CH11359
Type:
Published Article
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 758; Journal ID: ISSN 0031-9007
Publisher:
American Physical Society (APS)
Research Org:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Org:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
Contributing Orgs:
CMS Collaboration
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; CMS; physics; Higgs