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hep-ph1999
Intrinsic Charm in the Nucleon
X. Song
The quark spin and flavor structure of the nucleon is discussed in the SU(4) symmetry breaking chiral quark model. The spin and flavor contents for charm quarks and anti-charm quar…
hep-ph1999
Quark Spin and Orbital Angular Momentum in the Baryon
X. Song
The spin and orbital angular momentum carried by different quark flavors in the nucleon are calculated in the SU(3) chiral quark model with symmetry-breaking. The model is extended…