Exploring Penguins at Belle with Three-Body Decays (Alexey Yu Garmash, INP, Novosibirsk, Russia)

by Dr Alexey Yu Garmash (INP, Novosibirsk, Russia)

Thursday Nov 12, 2009, 3:30 PM → 5:00 PM Pacific/Honolulu

Rm 112 (UHM - Watanabe Hall)

I will describe analyses of "penguin" B-meson decays on Belle at the KEK laboratory in Tsukuba, Japan. "Penguins" involve b->s quark loop transitions and may be sensitive to physics beyond the Standard Model. Measurements of a number of three-body modes including B=>Kpipi, B=>KKpi and B=>KKK will be discussed. In contrast to two-body decays, analyses of these channels are more complex and require the inclusion of quantum-mechanical interference effects of contributing quasi-two-body amplitudes. These interference effects also open new possibilities to search for CP violation (matter-antimatter asymmetry) in B-meson decays.

pdf garmash.pdf

Video AlexeyGarmash-2009-11_12.wmv (Protected)