Quark orbital angular momentum in the baryon

DOI10.1142/S0217751X01005018zbMATH Open1023.81514arXivhep-ph/0012295OpenAlexW3102306369MaRDI QIDQ2761905

Xiaotong Song

Publication date: 18 November 2003

Published in: International Journal of Modern Physics A (Search for Journal in Brave)

Abstract: Analytical and numerical results, for the orbital and spin content carried by different quark flavors in the baryons, are given in the chiral quark model with symmetry breaking. The reduction of the quark spin, due to the spin dilution in the chiral splitting processes, is transferred into the orbital motion of quarks and antiquarks. The orbital angular momentum for each quark flavor in the proton as a function of the partition factor $kappa$ and the chiral splitting probability $a$ is shown. The cancellation between the spin and orbital contributions in the spin sum rule and in the baryon magnetic moments is discussed.

Full work available at URL: https://arxiv.org/abs/hep-ph/0012295

zbMATH Keywords

symmetry breakingbaryon magnetic momentschiral quark modelquark flavors in the baryons

Mathematics Subject Classification ID

Nuclear physics (81V35) Strong interaction, including quantum chromodynamics (81V05) Symmetry breaking in quantum theory (81R40) Software, source code, etc. for problems pertaining to quantum theory (81-04)

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