Principle of Balance and the Sea Content of the Proton

Abstract

In this study, the proton is taken as an ensemble of quark-gluon Fock states. Using the principle of balance that every Fock state should be balanced with all of the nearby Fock states (denoted as the balance model), instead of the principle of detailed balance that any two nearby Fock states should be balanced with each other (denoted as the detailed balance model), the probabilities of finding every Fock state of the proton are obtained. The balance model can be taken as a revised version of the detailed balance model, which can give an excellent description of the light flavor sea asymmetry (i.e., $\bar{u}\ne \bar{d}$) without any parameter. In case of $g\iff gg$ sub-processes not considered, the balance model and the detailed balance model give the same results. In case of $g\iff gg$ sub-processes considered, there is about 10 percent difference between the results of these models. We also calculate the strange content of the proton using the balance model under the equal probability assumption.

32 latex pages, 4 ps figures, to appear in PRD

References in corpus (5)

• Improved Measurement of the $\bar{d}/\bar{u}$ Asymmetry in the Nucleon Sea
• Flavor Asymmetry of Light Quarks in the Nucleon Sea
• A statistical approach for polarized parton distributions
• Detailed Balance and Sea-Quark Flavor Asymmetry of Proton
• Parton Distribution of Proton in a Simple Statistical Model

Cited by in corpus (21)

• Flavor Structure of the Nucleon Sea
• Statistical effect in the parton distribution functions of the nucleon
• Nuclear EMC Effect in a Statistical Model
• Sea quark contents of octet baryons
• Spin Studies of Nucleons in a Statistical Model
• Parton distributions in the proton and pion
• Comparison of kaon and pion valence quark distributions in a statistical model
• Magnetic moments of JP = 3/2+ decuplet baryons using statistical model
• Properties of JP = 1/2+ baryon octets at low energy
• Sea Quark Flavor Asymmetry of Hadrons in Statistical Balance Model
• Importance of Sea Contribution to Nucleons
• Strange and nonstrange sea quark-gluon effects in nucleons
• Strange Mass Corrections to Hyperonic Semi-leptonic Decay in Statistical Model
• Detailed Balance and Spin Content of Λ using Statistical Model
• J/P=1/2+, J/P=3/2+ masses in statistical model
• Sea contribution to the charge radii and quadrupole moment of $J^P={\frac{1}{2}}^{+},{\frac{3}{2}}^{+}$ baryons
• Sea Quark and Gluon contributions to Strange Baryons and their Properties
• Estimating proton radius and proportion of other non-perturbative components in the proton by the Maximum Entropy Method
• Octet Quark Contents from SU(3) Flavor Symmetry
• Octonionic Hyper-strong and Hyper-weak Fields and Their Quantum Equations
• Parton distribution functions and nuclear EMC effect in a statistical model