Hyperfine effects in charmed baryons

Abstract

Hadron masses are calculated in quenched lattice QCD with a fermion action of the D234 type on an anisotropic lattice. Hyperfine splittings for singly charmed baryons are found to be in agreement with expectations from the quark model and with a magnitude slightly larger than experimental values. Masses of doubly charmed baryons are also calculated and compared to a variety of model calculations. Hyperfine splittings in doubly charmed baryons are found to be slightly smaller than in singly charmed states.

12 pages, Latex, one postscript figure

References in corpus (3)

• Baryonic currents and their correlators in the Heavy Quark Effective Theory
• Heavy-light Mesons and Baryons with b quarks
• Quenched QCD with O(a) improvement: I. The spectrum of light hadrons

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• Spectrum of singly heavy baryons from a chiral effective theory of diquarks
• Baryon Masses in Partially Quenched Heavy Hadron Chiral Perturbation Theory
• N* Mass Spectrum from an Anisotropic Action
• Heavy baryon spectrum on lattice with NRQCD bottom and HISQ lighter quarks
• Diquark Representations for Singly Heavy Baryons with Light Staggered Quarks
• Charmed baryons from lattice QCD