Effective Field Theory Lagrangians for Baryons with Two and Three Heavy Quarks
High Energy Physics - Phenomenology
2009-11-11 v2 High Energy Physics - Lattice
Nuclear Theory
Abstract
By analogy with pNRQCD, 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 HQET and potential models is solved. The one-loop matching of the 4-quark operators of dimension 6 is provided.
Cite
@article{arxiv.hep-ph/0506065,
title = {Effective Field Theory Lagrangians for Baryons with Two and Three Heavy Quarks},
author = {Nora Brambilla and Thomas Roesch and Antonio Vairo},
journal= {arXiv preprint arXiv:hep-ph/0506065},
year = {2009}
}
Comments
37 pages, 4 figures, revtex4, feynmf.sty; typos corrected, reference added. Accepted for publication in Physical Review D