Abstract.
We show that the semi-leptonic decay \(B^+ \to \pi^+\pi^-\ell^+\nu_\ell\) can be used as a source of information for two-pion distribution amplitudes. The connection between these amplitudes and the B-meson decay width is achieved by the light cone sum rule method. We show the relevant distribution amplitudes and give the formula for the decay width.
Similar content being viewed by others
Author information
Authors and Affiliations
Additional information
Received: 11 April 2001 / Published online: 19 July 2001
Rights and permissions
About this article
Cite this article
Maul, M. Semi-leptonic B decays and the two-pion distribution amplitudes. Eur. Phys. J. C 21, 115–121 (2001). https://doi.org/10.1007/s100520100734
Issue Date:
DOI: https://doi.org/10.1007/s100520100734