B to D(*) pi- beyond naive factorization in the heavy quark limit

Details B to D(*) pi- beyond naive factorization in the heavy quark limit B to D(*) pi- beyond naive factorization in the heavy quark limit

2000-01-26

arxiv.org/abs/hep-ph/0001266v1

Phys.Lett.B476:339-343,2000

Physics

High Energy Physics

High Energy Physics - Phenomenology

10 pages, 1 figure

Scientific paper

10.1016/S0370-2693(00)00151-9

Nonleptonic decays B to D pi- or B to D* pi- are dominated by factorizable contributions. In the heavy quark limit, nonfactorizable contribution arises from strong radiative correction and power corrections in 1/m_b. I calculate the decay rates for B to D(*) pi- at next-to-leading order in strong interaction, including nonfactorizable corrections. The result is expressed in terms of a convolution of the hard scattering amplitude and the pion wave function. The decay amplitudes in this method are independent of the gauge, the renormalization scale, and the renormalization scheme. The effects of the nonfactorizable contribution are discussed and numerical estimates are presented.

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