activity
19962012
most citedPretzelosity and quark orbital angular momentum

85 citations · 759 across the 45 of their papers we have counts for

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Showing 2004Show all

9 papers · 1 filter

hep-ph2004

Non-zero transversity distribution of the pion in a quark-spectator-antiquark model

Zhun Lu, Bo-Qiang Ma

We calculate the non-zero (naïve) T-odd transverse momentum dependent transversity distribution $h_1^{\perp}(x,\kp^2)$ of the pion in a quark-spectator-antiquark model. The final-s…

hep-ph2004

Sigma Meson Cloud and Proton's Light Flavor Sea Quarks

Feng Huang, Rong-Guang Xu, Bo-Qiang Ma

We take into account the sigma meson cloud effect in the meson cloud model to calculate the distributions of light flavor sea quarks in the proton. Our calculation gives a better d…

hep-ph2004

Collins Effect in Single Spin Asymmetries of the Process

Bo-Qiang Ma, Ivan Schmidt, Jian-Jun Yang

We investigate the Collins effect in single spin asymmetries (SSAs) of the process, by taking into account the transverse momentum dependence of the microsco…

hep-ph2004

The 35-plet Baryons from Chiral Soliton Models

Bin Wu, Bo-Qiang Ma

We investigate the 35-plet baryons from the chiral soliton models. We find that the coupling constant for the decay of 35-plet baryons with spin 3/2 to the decuplet baryons is surp…

hep-ph2004

Particle-Antiparticle Asymmetries of Production in Hadron-Nucleon Collisions

Bo-Qiang Ma, Ivan Schmidt, Jian-Jun Yang

The particle-antiparticle asymmetries of production in 250 GeV/c , , and --nucleon collisions are studied with two model parametrizations of quark to

hep-ph2004

Effect of Asymmetric Strange-Antistrange Sea to the NuTeV Anomaly

Yong Ding, Rong-Guang Xu, Bo-Qiang Ma

We calculate the strange quark and antiquark distributions of the nucleon by using the effective chiral quark model, and find that the strange-antistrange asymmetry can bring a con…