1 citations · 1 across the 2 of their papers we have counts for
5 papers
AAC analysis of polarized parton distributions with uncertainties
M. Hirai, S. Kumano, N. Saito
We report recent studies of the Asymmetry Analysis Collaboration (AAC) on polarized parton distribution functions (PDFs). Using the data on the spin symmetry A_1 in deep inelastic…
Nuclear parton distribution functions and their effects on sin^2 theta_W anomaly
M. Hirai, S. Kumano, T. -H. Nagai
Nuclear parton distribution functions (NPDFs) are investigated by analyzing the data on structure functions F_2^A and Drell-Yan cross sections sigma_{DY}^{pA}. An important point o…
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,…
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…