Semileptonic decays in the limit of a heavy daughter quark

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The rate of the semileptonic decay b to c l v is calculated with order alphas^2 accuracy, as an expansion around the limit of equal masses of the b and c quarks. Recent results obtained around the limit of the c-quark much lighter than b are confirmed. Details of the new expansion method are described.
7 pages, 5 figures

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High Energy Physics - Phenomenology

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http://salesiana.dossiersoluciones.com/handle/123456789/202027

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/0810.0543
 http://arxiv.org/abs/0810.0543
 Phys.Rev.D78:074024,2008
 doi:10.1103/PhysRevD.78.074024

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arXiv