Zobrazeno 1 - 10
of 111
pro vyhledávání: '"Kodaira, Jiro"'
Publikováno v:
PoSRADCOR2007:040,2007
We discuss the double-spin asymmetry \aqt in the transversely polarized Drell-Yan process at small transverse-momentum Q_T of the produced dilepton. The soft gluon corrections relevant for small Q_T are resummed to all orders in \alpha_s, up to the n
Externí odkaz:
http://arxiv.org/abs/0801.3087
Publikováno v:
PoSRADCOR2007:049,2007
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 o
Externí odkaz:
http://arxiv.org/abs/0801.3071
Publikováno v:
Phys.Lett.B662:139-149,2008
We discuss the Drell-Yan process at a measured transverse-momentum $Q_T$ of the produced lepton pair in collisions of transversely polarized protons and antiprotons, to be observed at the proposed spin experiments at GSI. The large logarithmic contri
Externí odkaz:
http://arxiv.org/abs/0801.0026
Publikováno v:
Prog.Theor.Phys.118:581-656,2007
We calculate the transverse-momentum $Q_T$ spectrum of the dilepton in the transversely polarized Drell-Yan process on the basis of the factorization theorem in QCD. We take into account universal logarithmically enhanced corrections in edge region o
Externí odkaz:
http://arxiv.org/abs/0709.1752
Publikováno v:
Nucl.Phys.B777:203-225,2007
We calculate the double transverse-spin asymmetries, $\aqt$, in transversely polarized Drell-Yan process at the transverse-momentum $Q_T$ of the produced lepton pair. We perform all-order resummation of the logarithmically enhanced contributions in t
Externí odkaz:
http://arxiv.org/abs/hep-ph/0703079
Publikováno v:
AIPConf.Proc.915:599-602,2007
We present QCD prediction of double-spin asymmetries ($A_{TT}$) in transversely polarized Drell-Yan process at small transverse momentum $Q_T$ of dimuon. Resummation of large logarithmic corrections, relevant in small $Q_T$ region, is performed up to
Externí odkaz:
http://arxiv.org/abs/hep-ph/0612019
We discuss transverse double-spin asymmetries for dimuon production at small transverse-momentum $Q_T$ in $pp$ and $p\bar{p}$ collisions. All order resummation of large logarithms relevant in small $Q_T$ region is performed at next-to-leading logarit
Externí odkaz:
http://arxiv.org/abs/hep-ph/0607161
Publikováno v:
Prog.Theor.Phys. 115 (2006) 667-672
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 cross section up to order \alpha_s in the dimensional regularization sc
Externí odkaz:
http://arxiv.org/abs/hep-ph/0512137
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, and takes into account the cusp divergence due to radiative corrections
Externí odkaz:
http://arxiv.org/abs/hep-ph/0510220
Publikováno v:
Prog.Theor.Phys. 113 (2005) 183-198
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 study the constraints on the bilocal heavy-quark operator for the shape
Externí odkaz:
http://arxiv.org/abs/hep-ph/0410327