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- Chinese Academy of SciencesCN52 papers
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6 papers · 2 filters
The thermal evolution of nuclear matter at zero temperature and definite baryon number density in chiral perturbation theory
Xiao-ya Li, Xiao-fu Lü, Bin Wang +2
The thermal properties of cold dense nuclear matter are investigated with chiral perturbation theory. The evolution curves for the baryon number density, baryon number susceptibili…
Revisiting the Vector and Axial-vector Vacuum Susceptibilities
Lei Chang, Yu-xin Liu, Wei-min Sun +1
We re-investigate the vector and axial-vector vacuum susceptibilities by taking advantage of the vector and axial-vector Ward-Takahashi identities. We show analytically that, in th…
The calculation of the equation of state of QCD at finite chemical potential and zero temperature
Hong-shi Zong, Wei-min Sun
In this paper, we give a direct method for calculating the partition function, and hence the equation of state (EOS) of Quantum Chromodynamics (QCD) at finite chemical potential an…
Reply to the Comment on "Spin and orbital angular momentum in gauge theories: Nucleon spin structure and multipole radiation revisited" [PRL 100:232002 (2008)]
Xiang-Song Chen, Xiao-Fu Lü, Wei-Min Sun +2
This is a Reply to the Comment [arXiv:0807.0699] on our paper [PRL 100:232002 (2008)].
Spin and orbital angular momentum in gauge theories: Nucleon spin structure and multipole radiation revisited
Xiang-Song Chen, Xiao-Fu Lü, Wei-Min Sun +2
We address and solve the long-standing gauge-invariance problem of the nucleon spin structure. Explicitly gauge-invariant spin and orbital angular momentum operators of quarks and…
Systematic study of pentaquark states: configuration
Jialun Ping, Hongxia Huang, Chengrong Deng +2
Group theoretic method for the systematic study of five-quark states with meson-baryon () configuration is developed. The calculation of matrix elements of many body…