Combined large-N{sub c} and heavy-quark operator analysis of two-body meson-baryon counterterms in the chiral Lagrangian with charmed mesons

Journal Article · Tue Nov 01 04:00:00 EDT 2011 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.84.096015· OSTI ID:21608089

Lutz, M F. M.; Semke, A ^[1]; Samart, D ^[1]

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1. GSI Helmholtzzentrum fuer Schwerionenforschung GmbH, Planck Str. 1, 64291 Darmstadt (Germany)

The chiral SU(3) Lagrangian with pseudoscalar and vector D mesons and with the octet and decuplet baryons is considered. The leading two-body counter terms involving two baryon fields and two D meson fields are constructed in the open-charm sector. There are 26 terms. A combined expansion in the inverse of the charm quark mass and in the inverse of the number of colors provides sum rules that reduce the number of free parameters down to 5 only. Our result shows the feasibility of a systematic computation of the open-charm baryon spectrum based on coupled-channel dynamics.

• OSTI ID: 21608089
• Journal Information: Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 9 Vol. 84; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
B QUARKS
BARYONS
BEAUTY PARTICLES
BOSONS
C QUARKS
CHARM PARTICLES
CHARMED MESONS
CHIRALITY
COUPLED CHANNEL THEORY
D MESONS
ELEMENTARY PARTICLES
EQUATIONS
EXPANSION
FERMIONS
FUNCTIONS
HADRONS
LAGRANGIAN FUNCTION
LIE GROUPS
MANY-BODY PROBLEM
MASS
MESONS
PARTICLE PROPERTIES
POSTULATED PARTICLES
PSEUDOSCALAR MESONS
QUARKS
SU GROUPS
SU-3 GROUPS
SUM RULES
SYMMETRY GROUPS
T QUARKS
TOP PARTICLES
TWO-BODY PROBLEM
VECTOR MESONS