# Non-factorizable long distance contributions in color suppressed decays of B mesons

Source: [Non-factorizable long distance contributions in color suppressed decays of B mesons](<https://www.sota2.com/research/paper/68fa24782c2a3760193a4a02>)

Collection index: [llms.txt](<https://www.sota2.com/research/llms.txt>)

Data updated: 2025-10-24T09:13:03.886Z

Authors: K. Terasaki

Published: 1997-10-29T04:44:14.000Z

## Abstract

$\\bar B \\to D\\pi$, $D^\*\\pi$, $J/\\psi\\bar K$ and $J/\\psi\\pi$ decays are studied. Their amplitude is given by a sum of factorized and non-factorizable ones. The latter which is estimated by using a hard pion approximation is rather small in color favored $\\bar B \\to D\\pi$ and $D^\*\\pi$ decays but still can efficiently interfere with the main amplitude given by the factorization. In the color suppressed $\\bar B \\to J/\\psi\\bar K$ and $J/\\psi\\pi$ decays, the non-factorizable contribution is very important. The sum of the factorized and non-factorizable amplitudes can reproduce well the existing experimental data on the branching ratios for the color favored $\\bar B \\to D\\pi$ and $D^\*\\pi$ and the color suppressed $\\bar B \\to J/\\psi \\bar K$ and $J/\\psi\\pi$ decays by taking reasonable values of unknown parameters involved.

## Recorded benchmark results

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## Original sources and implementation

[Original paper](<https://arxiv.org/abs/hep-ph/9710515>)

[PDF](<https://arxiv.org/pdf/hep-ph/9710515.pdf>)