Nonfactorizable contributions in anti-B0 -> Ds+ Ds- and anti-Bs0 -> D+ D- decays

Details Nonfactorizable contributions in anti-B0 -> Ds+ Ds- and anti-Bs0 -> D+ D- decays Nonfactorizable contributions in anti-B0 -> Ds+ Ds- and anti-Bs0 -> D+ D- decays

2003-07-03

arxiv.org/abs/hep-ph/0307042v1

SpringerProc.Phys.98:457-460,2005

Physics

High Energy Physics

High Energy Physics - Phenomenology

LaTeX, 5 pages, 4 figures, contributed paper for LP03

Scientific paper

The decay amplitudes for anti-B0 -> Ds+ Ds- and anti-Bs0 -> D+ D- have no
factorizable contributions. We suggest that dominant contributions to the decay
amplitudes arise from two chiral loop contributions and one soft gluon emission
contribution. Then we determine branching ratios BR(anti-B0 -> Ds+ Ds-) ~ 7E-5
and BR(anti-Bs0 -> D+ D-) ~ 1E-3.

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