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20–27 juil. 2011
Alpes Congrès - Alpexpo
Fuseau horaire Europe/Paris

Direct CPV and charmless B decays at Belle

21 juil. 2011, 11:45
15m
Oisans (Alpes Congrès - Alpexpo)

Oisans

Alpes Congrès - Alpexpo

Parallel session talk Flavour Physics and Fundamental Symmetries Flavour Physics and Fundamental Symmetries

Orateur

Dr Paoti Chang (NTU, Taipei)

Description

We report the measurements of branching fractions and direct $CP$ asymmetries for neutral $B$ meson decays to the $hh$ final states, where $h$ stands for a pion or a kaon. We also study the charged $B$ meson decays into one charged and one neutral kaon or pion. We present improved measurements of the branching fraction and the $CP$ asymmetry of $B\to\eta h$. Here $h$ denotes $\pi^{\pm}$, $K^{\pm}$ or $K^0_S$, and the $\eta$ is reconstructed through the decay channels $\eta\to\gamma\gamma$ and $\eta\to\pi^+\pi^-\pi^0$. We report the results of a search for the charmless hadronic decay $B^+ \to \omega\rho^+$. These analyses are performed using the large data sample collected with the Belle detector near the $\Upsilon(4S)$ resonance at the KEKB asymmetric $e^+e^-$ collider.

Auteur principal

Dr Paoti Chang (NTU, Taipei)

Documents de présentation