A search is reported for a light pseudoscalar Higgs boson decaying to a pair of τ leptons, produced in association with a bb‾ 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 bb‾ pairs, in Type II, two-Higgs-doublet models.

Khachatryan, V., Sirunyan, A., Tumasyan, A., Adam, W., Asilar, E., Bergauer, T., et al. (2016). Search for a low-mass pseudoscalar Higgs boson produced in association with a bb‾ pair in pp collisions at √s=8 TeV. PHYSICS LETTERS. SECTION B, 758, 296-320 [10.1016/j.physletb.2016.05.003].

Search for a low-mass pseudoscalar Higgs boson produced in association with a bb‾ pair in pp collisions at √s=8 TeV

BRIANZA, LUCA;DINARDO, MAURO EMANUELE;FIORENDI, SARA;GEROSA, RAFFAELE ANGELO;GHEZZI, ALESSIO;GOVONI, PIETRO;MANZONI, RICCARDO ANDREA;MARZOCCHI, BADDER;MORONI, LUIGI;PAGANONI, MARCO;RAGAZZI, STEFANO;TABARELLI DE FATIS, TOMMASO;Branca, A;De Guio, F;Lucchini, M;Malberti, M;Massironi, A;
2016

Abstract

A search is reported for a light pseudoscalar Higgs boson decaying to a pair of τ leptons, produced in association with a bb‾ 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 bb‾ pairs, in Type II, two-Higgs-doublet models.
Articolo in rivista - Articolo scientifico
CMS; Higgs; Physics;
English
2016
758
296
320
none
Khachatryan, V., Sirunyan, A., Tumasyan, A., Adam, W., Asilar, E., Bergauer, T., et al. (2016). Search for a low-mass pseudoscalar Higgs boson produced in association with a bb‾ pair in pp collisions at √s=8 TeV. PHYSICS LETTERS. SECTION B, 758, 296-320 [10.1016/j.physletb.2016.05.003].
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/153343
Citazioni
  • Scopus 33
  • ???jsp.display-item.citation.isi??? 32
Social impact