Search for a Very Light CP-Odd Higgs Boson in Top Quark Decays from pp[over-bar] Collisions at [sqrt]s=1.96 TeV
Author(s)Bauer, Gerry P.; Gomez-Ceballos, Guillelmo; Goncharov, Maxim; Makhoul, Khaldoun; Paus, Christoph M. E.
Search for a Very Light CP-Odd Higgs Boson in Top Quark Decays from pp̅ Collisions at √s=1.96 TeV
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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±[superscript (*)]a10b, and subsequently decaying into tau+tau-. Using a data sample corresponding to an integrated luminosity of 2.7 fb[superscript -1] collected by the CDF II detector in pp[over-bar] 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.
DepartmentMassachusetts Institute of Technology. Laboratory for Nuclear Science
Physical Review Letters
American Physical Society
T. Aaltonen et al. (CDF Collaboration). "Search for a Very Light CP-Odd Higgs Boson in Top Quark Decays from pp[over-bar] Collisions at [sqrt]s=1.96 TeV." Phys. Rev. Lett. 107, 031801 (2011) [8 pages] © 2011 American Physical Society.
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