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Title: Limits on neutral Higgs boson production in the forward region in pp collisions at √s=7 TeV
Author: LHCb Collaboration
Camboni, Alessandro
Comerma Montells, Albert
Garrido Beltrán, Lluís
Graciani Díaz, Ricardo
Graugés Pous, Eugeni
López Asamar, E.
Picatoste Olloqui, Eduardo
Potterat, Cédric
Rives Molina, Vicente José
Ruiz, Hugo (Ruiz Pérez)
Vázquez Gómez, R
Abellan Beteta, Carlos
Calvo Gómez, M.
Oyanguren, A.
Ruiz Valls, P.
Vilasis-Cardona, X.
Keywords: Hadrons
Gran Col·lisionador d'Hadrons
Teoria quàntica
Teoria quàntica de camps
Large Hadron Collider (France and Switzerland)
Quantum theory
Quantum field theory
Issue Date: 27-May-2013
Publisher: Springer Verlag
Abstract: Limits on the cross-section times branching fraction for neutral Higgs bosons, produced in pp collisions at s√=7s=7 TeV, and decaying to two tau leptons with pseudorapidities between 2.0 and 4.5, are presented. The result is based on a dataset, corresponding to an integrated luminosity of 1.0 fb−1, collected with the LHCb detector. Candidates are identified by reconstructing final states with two muons, a muon and an electron, a muon and a hadron, or an electron and a hadron. A model independent upper limit at the 95% confidence level is set on a neutral Higgs boson cross-section times branching fraction. It varies from 8.6 pb for a Higgs boson mass of 90 GeV to 0.7 pb for a Higgs boson mass of 250 GeV, and is compared to the Standard Model expectation. An upper limit on tan β in the Minimal Supersymmetric Model is set in the mmaxh0mh0max scenario. It ranges from 34 for a CP -odd Higgs boson mass of 90 GeV to 70 for a pseudo-scalar Higgs boson mass of 140 GeV.
Note: Reproducció del document publicat a:
It is part of: Journal of High Energy Physics, 2013, vol. 5, num. 132
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ISSN: 1126-6708
Appears in Collections:Articles publicats en revistes (Física Quàntica i Astrofísica)

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