Jul 16 – 22, 2009
Kraków, Poland
Europe/Warsaw timezone

Search for a light CP-odd Higgs boson in BaBar

Jul 16, 2009, 3:45 PM
15m
Large Lecture - Hall B (Kraków, Poland)

Large Lecture - Hall B

Kraków, Poland

The Auditorium Maximum of the Jagiellonian University 33 Krupnicza Street 31-123 Kraków
Higgs and New Physics III. Higgs and New Physics

Speaker

Dr MOKHTAR GABAREEN (SLAC National Accelerator Laboratory)

Description

We search for evidence of a light scalar (e.g. a Higgs boson) in the radiative decays of the narrow Upsilon(2S) and Upsilon(3S) resonances: Upsilon(2S,3S) --> gamma A^0, A^0 --> mu+ mu- and Upsilon(3S) --> gamma A^0, A^0 --> tau+ tau-. Such an object appears in extensions of the Standard Model, where a light CP-odd Higgs boson naturally couples strongly to b-quarks. We find no evidence for such processes, and set upper limits on the effective coupling of the b quark to A^0. We also set an upper limit on the di-muon and di-tau branching fractions of the eta_b meson.

Primary authors

Dr MOKHTAR GABAREEN (SLAC National Accelerator Laboratory) Paul de Jong (Nikhef)

Co-author

Presentation materials