Search for a Higgs boson decaying into a b-quark pair and produced in association with b quarks in proton–proton collisions at 7 TeV

Basegmez, Suzan; Bruno, Giacomo; Castello, Roberto; Ceard, Ludivine; Delaere, Christophe; Du Pree, Tristan; Favart, Denis; Forthomme, Laurent; Giammanco, Andrea; Hollar, Jonathan; Lemaitre, Vincent; Liao, Junhui; Militaru, Otilia; Nuttens, Claude; Pagano, Davide; Pin, Arnaud; Piotrzkowski, Krzysztof; Popov, Andrey; Selvaggi, Michele; Vizan Garcia, Jesús Manuel

doi:10.1016/j.physletb.2013.04.017

Search for a Higgs boson decaying into a b-quark pair and produced in association with b quarks in proton–proton collisions at 7 TeV

Basegmez, Suzan

;

Bruno, Giacomo

;

Castello, Roberto

;

Ceard, Ludivine

;

Bethani, Agni

;et.al.

(2013) Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics — Vol. 722, n° 4-5, p. 207-234 (2013)

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Authors

Basegmez, SuzanUCLouvain
Author
Bruno, GiacomoUCLouvain
Author
Castello, RobertoUCLouvain
Author
Ceard, LudivineUCLouvain
Author
Delaere, ChristopheUCLouvain
Author
Du Pree, TristanUCLouvain
Author
Favart, DenisUCLouvain
Author
Forthomme, LaurentUCLouvain
Author
Giammanco, AndreaUCLouvain
Author
Hollar, JonathanUCLouvain
Author
Lemaitre, VincentUCLouvain
Author
Liao, JunhuiUCLouvain
Author
Militaru, OtiliaUCLouvain
Author
Nuttens, ClaudeUCLouvain
Author
Pagano, DavideUCLouvain
Author
Pin, ArnaudUCLouvain
Author
Piotrzkowski, KrzysztofUCLouvain
Author
Popov, AndreyUCLouvain
Author
Selvaggi, MicheleUCLouvain
Author
Vizan Garcia, Jesús ManuelUCLouvain
Author
Bethani, AgniUCLouvain
Author
et. al.

Abstract

A search for a neutral Higgs boson decaying to a pair of b quarks, and produced in association with at least one additional b quark, is presented. Multijet final states with three jets identified as originating from b quarks, at least one of which may include a non-isolated muon, are studied. The data used in this analysis correspond to an integrated luminosity of 2.7–4.8 fb−1, collected by the CMS experiment in proton–proton collisions at the LHC at a center-of-mass energy of 7 TeV. This search is particularly sensitive to Higgs bosons in scenarios of the Minimal Supersymmetric Model (MSSM) with large values of tan β. No excess over the predicted background from standard model processes is observed. Stringent upper limits on cross section times branching fraction are derived and interpreted as bounds in the MSSM tan β and mAmA parameter-space. Observed 95% confidence level upper limits reach as low as View the MathML sourcetanβ≈18 for MA≈100 GeVMA≈100 GeV.

Affiliations

UCLouvainSST/IRMP - Institut de recherche en mathématique et physique

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Basegmez, S., Bruno, G., Castello, R., Ceard, L., Delaere, C., Du Pree, T., Favart, D., Forthomme, L., Giammanco, A., Hollar, J., Lemaitre, V., Liao, J., Militaru, O., Nuttens, C., Pagano, D., Pin, A., Piotrzkowski, K., Popov, A., Selvaggi, M., et al. (2013). Search for a Higgs boson decaying into a b-quark pair and produced in association with b quarks in proton–proton collisions at 7 TeV. Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics, 722(4-5), 207-234. https://doi.org/10.1016/j.physletb.2013.04.017 (Original work published 2013)