Search for a light charged Higgs boson in the decay channel H+->csbar in ttbar events using pp collisions at sqrt(s) = 7 TeV with the ATLAS detector

A search for a charged Higgs boson (H+) in ttbar decays is presented, where one of the top quarks decays via t->H+b, followed by H+->two jets (csbar). The other top quark decays to Wb, where the W boson then decays into a lepton (e/mu) and a neutrino. The data were recorded in pp collisions at sqrt(s) = 7TeV by the ATLAS detector at the LHC in 2011, and correspond to an integrated luminosity of 4.7 fb-1. With no observation of a signal, 95% confidence level (CL) upper limits are set on the decay branching ratio of top quarks to charged Higgs bosons varying between 5% and 1% for H+ masses between 90 GeV and 150 GeV, assuming Br(H+->csbar)=100%.

Palabras clave: Higgs , Atlas

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Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)

Identificadores

URI: http://hdl.handle.net/11336/697

DOI: http://dx.doi.org/10.1140/epjc/s10052-013-2465-z

URL: https://arxiv.org/abs/1302.3694

URL: https://link.springer.com/article/10.1140/epjc/s10052-013-2465-z

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Citación

Aad, G.; González Silva, María Laura; Otero y Garzon, Gustavo Javier; Piegaia, Ricardo Nestor; Romeo, Gaston Leonardo; et al.; Search for a light charged Higgs boson in the decay channel H+->csbar in ttbar events using pp collisions at sqrt(s) = 7 TeV with the ATLAS detector; Springer; European Physical Journal C - Particles And Fields; 73; 6-6-2013; 2465-2474

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