Search for a Very Light <em>CP</em>-Odd Higgs Boson in Top Quark Decays from <em>pp</em> Collisions at √s=1.96  TeV

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Title		Search for a Very Light CP-Odd Higgs Boson in Top Quark Decays from pp Collisions at √s=1.96 TeV
Collaboration		CDF Collaboration With : Clark, Allan Geoffrey / Garcia Navarro, Jose Enrique / Lister, Alison / Wu, Xin
Published in		Physical Review Letters. 2011, vol. 107, no. 03, p. 031801
Abstract		We present the results of a search for a very light CP-odd Higgs boson a01 originating from top quark decays t→H±b→W±(*)a01b, 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 pp 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 a01.
Identifiers		DOI: 10.1103/PhysRevLett.107.031801
Full text		Article (Published version) (285 Kb) - Free access Other version: http://journals.aps.org/prl/abstract/10.1103/PhysRevLett.107.031801
Structures		Faculté des sciences / Section de physique / Département de physique nucléaire et corpusculaire
Citation (ISO format)		CDF COLLABORATION. Search for a Very Light CP-Odd Higgs Boson in Top Quark Decays from pp Collisions at √s=1.96 TeV. In: Physical Review Letters, 2011, vol. 107, n° 03, p. 031801. https://archive-ouverte.unige.ch/unige:38689

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