4 papers
The Dilepton Q_T Spectrum in Transversely Polarized Drell-Yan Process in QCD
Hiroyuki Kawamura, Jiro Kodaira, Hirotaka Shimizu +1
We discuss the transverse momentum Q_T distribution of Drell-Yan pair, produced in collisions of transversely polarized protons. We calculate the transversely polarized Drell-Yan c…
Unraveling Soft Components in the Shape Function for Inclusive B Decays
Hiroyuki Kawamura, Jiro Kodaira, Kazuhiro Tanaka
We present a systematic study of the shape function for inclusive B-meson decays in the heavy-quark limit, which is based on the QCD equations of motion and heavy-quark symmetry, a…
Unravelling soft components in the shape function for inclusive B decays
Hiroyuki Kawamura, Jiro Kodaira, Kazuhiro Tanaka
In the heavy-quark limit, the decay spectrum for radiative and semileptonic inclusive B-meson decays is determined by a universal structure function, i.e. the shape function. We st…
B meson light-cone wavefunctions in the heavy quark limit
Hiroyuki Kawamura, Jiro Kodaira, Cong-Feng Qiao +1
We present a systematic study of the B meson light-cone wavefunctions in QCD in the heavy-quark limit. We construct model-independent formulae for the light-cone wavefunctions in t…