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Heavy quark expansion for the inclusive decay $\overline{B}$ --> $\tau\overline{\nu}$X

We calculate the differential decay rate for inclusive $\bar B\to\tau\ \bar\nu\,X$ transitions to order $1/m_b^2$ in the heavy quark expansion, for both polarized and unpolarized tau leptons. We show that using a systematic $1/m_b$ expansion significantly reduces the theoretical uncertainties in the...

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Detalles Bibliográficos
Autores principales: Falk, A F, Ligeti, Z, Neubert, M, Nir, Yosef
Lenguaje:eng
Publicado: 1994
Materias:
Acceso en línea:https://dx.doi.org/10.1016/0370-2693(94)91206-8
http://cds.cern.ch/record/257221