k_T factorization of exclusive B decays

Details k_T factorization of exclusive B decays k_T factorization of exclusive B decays

2003-04-23

arxiv.org/abs/hep-ph/0304217v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

4 pages, talk presented at the XXXVIIIth Rencontres de Moriond session on QCD And High Energy Hadronic Interactions, Les Arcs

Scientific paper

I compare collinear and $k_T$ factorization theorems in perturbative QCD, and
discuss their application to exclusive $B$ meson decays. Especially, I
concentrate on the recently measured time-dependent CP asymmetry of the
$B^0_d\to\pi^+\pi^-$ modes, from which the unitarity angle can be extracted.

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