Eur. Phys. J. C 21, 115-121 (2001)
DOI: 10.1007/s100520100734
Semi-leptonic B decays and the two-pion distribution amplitudes
M. MaulDepartment of Theoretical Physics, Lund University, Sölvegatan 14A, 223 62 Lund, Sweden
(Received: 11 April 2001 / Published online: 19 July 2001 -© Springer-Verlag / Società Italiana di Fisica 2001 )
Abstract
We show that the semi-leptonic decay
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.
© Società Italiana di Fisica, Springer-Verlag 2001
