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k_T factorization of exclusive B decays

Hsiang-nan Li
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Abstract

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 $B^0_d\toπ^+π^-$ modes, from which the unitarity angle can be extracted.

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Hsiang-nan Li. 2003-04-23. k_T factorization of exclusive B decays. https://arxiv.org/abs/hep-ph/0304217

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