Effective field theory Lagrangians for baryons with two and three heavy quarks

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Abstract

By analogy with potential nonrelativistic QCD, we construct effective field theories suitable to describe the heavy-quark sector of baryons made of two and three heavy quarks. A long-standing discrepancy between the hyperfine splitting of doubly heavy baryons obtained in the heavy-quark effective theory and potential models is solved. The one-loop matching of the 4-quark operators of dimension 6 is provided.

Original languageEnglish
Article number034021
Pages (from-to)1-17
Number of pages17
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume72
Issue number3
DOIs
StatePublished - 1 Aug 2005
Externally publishedYes

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