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5 papers · 2 filters
Strange sea distributions of the nucleon
H. Chen, F. -G. Cao, A. I. Signal
The strange and antistrange quark distributions of the nucleon are less constrained by experimental data than the non-strange quark sea. The combination of light quark sea distribu…
The two-pseudoscalar-meson decay of with twist-3 corrections
Ming-Zhen Zhou, Hai-Qing Zhou
The decays of are discussed within the standard and modified hard scattering approach when including the contributions from twist-3 distributi…
Study of B_{c}\to J/ψK decays in the perturbative QCD approach
Xian-Qiao Yu, Xiu-Li Zhou
In this note, we calculate the branching ratio of B_c\to J/ψK in the framework of perturbative QCD approach based on k_T factorization. This decay can occur only via tree level dia…
Nucleon electromagnetic form factors in a quark-gluon core model
Xian-Qiao Yu
We study the nucleon electromagnetic form factors in a quark-gluon core model framework, which can be viewed as an extension of the Isgur-Karl model of baryons. Using this picture…
Branching ratio and CP violation of decays in the perturbative QCD approach
Jun Zhang, Xian-Qiao Yu
In this paper, we calculate the branching ratio and direct CP asymmetry parameter of in the framework of perturbative QCD approach based on factor…