Search for a low-mass pseudoscalar Higgs boson produced in association with a pair in pp collisions at
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.
- Research Organization:
- Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), High Energy Physics (HEP)
- Contributing Organization:
- CMS Collaboration
- Grant/Contract Number:
- AC02-07CH11359
- OSTI ID:
- 1252276
- Alternate ID(s):
- OSTI ID: 1230040
- Report Number(s):
- FERMILAB-PUB-15-514-CMS; S0370269316301502; PII: S0370269316301502
- Journal Information:
- Physics Letters B, Journal Name: Physics Letters B Vol. 758 Journal Issue: C; ISSN 0370-2693
- Publisher:
- ElsevierCopyright Statement
- Country of Publication:
- Netherlands
- Language:
- English
Web of Science
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