FLAVOR ASYMMETRY OF NUCLEON SEA FROM DETAILED BALANCE

YONG-JUN ZHANG, BO-QIANG MA, LI-MING YANG
2003 International Journal of Modern Physics A  
In this study, the proton is taken as an ensemble of quark-gluon Fock states. Using the principle of detailed balance, we find d̅-u̅≈ 0.124, which is in surprisingly agreement with the experimental observation.
doi:10.1142/s0217751x03014915 fatcat:caq3txtzdnaujjwukwof7we3iy