7 papers · 1 filter
Transversity distributions and spin asymmetries
S. Hino, M. Hirai, S. Kumano +1
We discuss transversity distributions and transverse spin asymmetries. First, evolution results are shown for transversity and longitudinally polarized distributions. Second,…
Spin asymmetries at RHIC and polarized parton distributions
S. Hino, M. Hirai, S. Kumano +1
We discuss polarized parton distributions and their effects on spin asymmetries at RHIC. In particular, transversity distributions and transverse spin asymmetry are studied. First,…
One and two loop anomalous dimensions for the chiral-odd structure function h1
S. Kumano, M. Miyama
Because the chiral-odd structure function h_1 will be measured in the polarized Drell-Yan process, it is important to predict the behavior of h_1 before the measurement. In order t…
evolution of structure functions in the nucleon and nuclei
M. Miyama
evolution of structure functions in the nucleon and nuclei is investigated by using usual DGLAP equations and parton-recombination equations. Calculated results for proton's…
Numerical solution of NLO Q^2 evolution equations for spin-dependent structure functions
M. Hirai, S. Kumano, M. Miyama
Numerical solution of DGLAP evolution equations is studied for polarized parton distributions by using a ``brute-force" method. NLO contributions to splitting functions are r…
Q^2 evolution studies of nuclear structure function F_2 at HERA
S. Kumano, M. Miyama
Q**2 dependence of nuclear structure functions is important for understanding perturbative QCD in nuclear environment. However, current experimental data are not sufficient for stu…