Phys. Rev. D 46, 1148–1164 (1992)Heavy-quark symmetry and chiral dynamicsSee Also: Erratum Received 2 March 1992; published in the issue dated 1 August 1992 The flavor and spin symmetry of the heavy quarks and the spontaneously broken approximate SU(3)L×SU(3)R chiral symmetry of the light quarks are exploited to formulate a theory describing the low-energy interactions of the heavy mesons (Qq̅ bound states) and heavy baryons (Qq1q2 bound states) with the Goldstone bosons π, K, and η. The theory contains only three parameters independent of the number of heavy-quark species involved. They can be determined by the decays D*→D+π, Σc→Λc+π, and Σc*→Σc+π. Theoretically, these coupling constants are related, through partial conservation of axial-vector current, to the axial charges of the heavy mesons and the heavy baryons. They are all calculable in the nonrelativistic quark model by using the spin wave functions of these particles alone. The theory is applied to strong decays and semileptonic weak decays of the heavy mesons and baryons. The implications are also discussed. © 1992 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevD.46.1148
DOI:
10.1103/PhysRevD.46.1148
PACS:
11.30.Rd, 11.30.Hv, 14.20.Kp, 14.40.Jz
See AlsoErratum: Tung-Mow Yan, Hai-Yang Cheng, Chi-Yee Cheung, Guey-Lin Lin, Y. C. Lin, and Hoi-Lai Yu, Erratum: Heavy-quark symmetry and chiral dynamics [Phys. Rev. D 46, 1148 (1992)], Phys. Rev. D 55, 5851 (1997). |
|
About | Terms and Conditions | Subscriptions | Search | Help
Use of the American Physical Society websites and journals implies that the user has read and agrees to our Terms and Conditions and any applicable Subscription Agreement. Physical Review®, Physical Review Letters®, Reviews of Modern Physics®, and Physical Review Special Topics® are trademarks of the American Physical Society.