556 citations · 6.7k across the 278 of their papers we have counts for
8 papers · 1 filter
Connection between Distribution and Fragmentation Functions
Vincenzo Barone, Alessandro Drago, Bo-Qiang Ma
We show that the quark fragmentation function and the quark distribution function are connected in the limit by the approximate relation $D(z)/z \simeq q(2-…
Nucleon Transversity Distribution from Azimuthal Spin Asymmetry in Pion Electroproduction
Bo-Qiang Ma, Ivan Schmidt, Jian-Jun Yang
The azimuthal asymmetry observed by the HERMES collaboration in semi-inclusive pion production in deep inelastic scattering of unpolarized positron on the longitudinally polarized…
The Quark Distributions of Baryons
Bo-Qiang Ma
The recent progress in the investigations on the quark structure of the and baryons are reviewed. It is shown that the quark structure of and hyperons can provide a…
The Flavor and Spin Structure of Hyperons from Quark Fragmentation
Bo-Qiang Ma, Ivan Schmidt, Jacques Soffer +1
We systematically study the hadron longitudinal polarizations of the octet baryons at large from quark fragmentations in -annihilation, polarized charged lepton deep in…
The Quark-Antiquark Asymmetry of the Nucleon Sea from and Fragmentation
Bo-Qiang Ma, Ivan Schmidt, Jacques Soffer +1
We present a general analysis of the spin transfer for and production in deep-inelastic scattering of polarized charged leptons on the nucleon, and find that the patter…
Light-Cone Representation of the Spin and Orbital Angular Momentum of Relativistic Composite Systems
Stanley J. Brodsky, Dae Sung Hwang, Bo-Qiang Ma +1
The matrix elements of local operators such as the electromagnetic current, the energy momentum tensor, angular momentum, and the moments of structure functions have exact represen…