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Open Access item Search for a Very Light CP-Odd Higgs Boson in Top Quark Decays from pp̅ Collisions at √s=1.96  TeV

Authors:Aaltonen, T.
Álvarez González, B.
Cabrera, Susana
Casal, Bruno
Cuevas, Javier
Gómez, G.
Palencia, Enrique
Rodrigo, Teresa
Ruiz Jimeno, Alberto
Scodellaro, Luca
Vila, Iván
Vilar, Rocío
Issue Date:2011
Publisher:American Physical Society
Citation:Physical Review Letters 107(3): 031801 (2011)
Abstract:We present the results of a search for a very light CP-odd Higgs boson a10 originating from top quark decays t→H±b→W±(*)a10b, and subsequently decaying into τ+τ-. Using a data sample corresponding to an integrated luminosity of 2.7  fb-1 collected by the CDF II detector in pp̅ collisions at 1.96 TeV, we perform a search for events containing a lepton, three or more jets, and an additional isolated track with transverse momentum in the range 3 to 20  GeV/c. Observed events are consistent with background sources, and 95% C.L. limits are set on the branching ratio of t→H±b for various masses of H± and a10.
Description:8 páginas, 4 figuras, 1 tabla.-- CDF Collaboration: et al.
Publisher version (URL):http://dx.doi.org/10.1103/PhysRevLett.107.031801
E-ISSNmetadata.dc.identifier.doi = DOI:1079-7114
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