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arXiv · hep-ph/0106208

B --> rho l nu Decay and |V_{ub}|

W. Y. Wang·Y. L. Wu
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Abstract

B --> rho l nu decay is analyzed in the effective theory of heavy quark with infinite mass limit. The matrix element relevant to the heavy to light vector meson semileptonic decays is parametrized by a set of four heavy flavor-spin independent universal wave functions at the leading order of effective theory. The form factors are calculated at the leading 1/m_Q order using the light cone sum rule method in the framework of effective theory. |V_{ub}| is then extracted via B --> rho l nu decay mode.

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W. Y. Wang, Y. L. Wu. 2002-08-28. B --> rho l nu Decay and |V_{ub}|. https://doi.org/10.1016/s0370-2693(01)01128-5

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