DETAILED BALANCE AND SPIN CONTENT OF Lambda USING STATISTICAL MODEL

作者：Batra M^*; Upadhyay A

来源：International Journal of Modern Physics A, 2013, 28(15): 1350062.

DOI：10.1142/S0217751X13500620

• Statistical model
• lambda hyperon
• principle of detailed balance
• SU(3) symmetry

The spin structure of lambda has its special importance in analyzing the spin content of other hadrons. Assuming hadrons as a cluster of quarks and gluons (generally referred as valence and sea), statistical approach has been applied to study spin distribution of lambda among quarks. We apply the principle of detailed balance to calculate the probability of various quark-gluon Fock states and check the impact of SU(3) breaking on these probabilities particularly in sea for the Fock states containing strange quark. The flavor probability when multiplied by spin and color multiplicities of these quark-gluon Fock states results in estimating the individual contributions from valence and sea. We conclude that breaking in symmetry significantly affects the polarization of quarks inside the hyperons.

• 出版日期2013-6-20