Search for Higgs bosons produced in association with b quarks
Name
Aaltonen-2012-Search for Higgs bosons produced in association with b quarks.pdf
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Author(s)
Gomez-Ceballos, Guillelmo
Goncharov, Maxim
Paus, Christoph M. E.
Bauer, Gerry P
Makhoul, Khaldoun
Date Issued
January 2012
Journal
Physical Review D
Publisher
American Physical Society
Citation
Aaltonen, T. et al. “Search for Higgs Bosons Produced in Association with b Quarks.” Physical Review D 85.3 (2012): Web. 11 May 2012. © 2012 Institute of Electrical and Electronics Engineers
Version
Final published version
Abstract
We present a search for neutral Higgs bosons ϕ decaying into bb̅ , produced in association with b quarks in pp̅ collisions. This process could be observable in supersymmetric models with high values of tanβ. The event sample corresponds to 2.6 fb[superscript -1] of integrated luminosity collected with the CDF II detector at the Fermilab Tevatron collider. We search for an enhancement in the mass of the two leading jets in events with three jets identified as coming from b quarks using a displaced vertex algorithm. A data-driven procedure is used to estimate the dijet mass spectrum of the nonresonant multijet background. The contributions of backgrounds and a possible Higgs boson signal are determined by a two-dimensional fit of the data, using the dijet mass together with an additional variable which is sensitive to the flavor composition of the three tagged jets. We set mass-dependent limits on σ(pp̅ →ϕb)×B(ϕ→bb̅ ) which are applicable for a narrow scalar particle ϕ produced in association with b quarks. We also set limits on tanβ in supersymmetric Higgs models including the effects of the Higgs boson width.
MIT Department
Massachusetts Institute of Technology. Department of Physics
Massachusetts Institute of Technology. Laboratory for Nuclear Science
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Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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DOI of Published Version
https://doi.org/10.1103/PhysRevD.85.032005
