Pentaquark masses in chiral perturbation theory
نویسندگان
چکیده
منابع مشابه
Charmed Baryon Masses in Chiral Perturbation Theory ∗
The masses of the charmed baryons in the 6 representation of SU(3) obey an equal spacing rule at lowest order in SU(3) breaking, O(ms). We compute the corrections to this relation at order O(m s ) arising from meson loops using chiral perturbation theory combined with heavy quark symmetry and find them to be small. We also examine the hyperfine interaction responsible for the splitting between ...
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Abstract We show how to compute chiral logarithms that take into account both theO(a2) taste-symmetry breaking of staggered fermions and the fourth-root trick that produces one taste per flavor. The calculation starts from the Lee-Sharpe Lagrangian generalized to multiple flavors. An error in a previous treatment by one of us is explained and corrected. The one loop chiral logarithm corrections...
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ژورنال
عنوان ژورنال: Physical Review D
سال: 2004
ISSN: 1550-7998,1550-2368
DOI: 10.1103/physrevd.70.114022