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 00:00:00 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, Vol. 84, Issue 9; Other Information: DOI: 10.1103/PhysRevD.84.096015; (c) 2011 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

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