出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：We discuss the B-meson light-cone wavefunction relevant for QCD factorization approach for
exclusive B-meson decays. We derive the operator product expansion for the B-meson light-cone
wavefunction, taking into account the local composite operators of dimension less than 6 and calculating
the radiative corrections at order as for the correspondingWilson coefficients. The result
embodies peculiar UV and IR behaviors of the B-meson light-cone wavefunction, the Sudakovtype
double logarithmic effects and the mixing of the multiparticle states with additional gluons
inside the B meson. The former effects are induced from the cusp singularity in the radiative
corrections, while the latter is manifested by the participation of the higher-dimensional operators
associated with the nonperturbative structure of the B meson.
