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Title: 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
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.
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ISSN: 0031-9007
???metadata.dc.identifier.doi???: 10.1103/PhysRevLett.107.031801
Citation: Physical Review Letters 107(3): 031801 (2011)
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