Dynamically generated open-charm baryons beyond the zero-range approximation

Journal Article · Sun Nov 15 00:00:00 EST 2009 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.80.055206· OSTI ID:21296533

Jimenez-Tejero, C E; Ramos, A ^[1]; Vidana, I ^[2]

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1. Departament d'Estructura i Constituents de la Materia and Institut de Ciencies del Cosmos, Universitat de Barcelona, Avda. Diagonal 647, E-08028 Barcelona (Spain)
2. Centro de Fisica Computacional, Department of Physics, University of Coimbra, 3004-516 Coimbra (Portugal)

The interaction of the low-lying pseudoscalar mesons with the ground-state baryons in the charm sector is studied within a coupled-channel approach using a t-channel vector-exchange driving force. The amplitudes describing the scattering of the pseudoscalar mesons off the ground-state baryons are obtained by solving the Lippmann-Schwinger equation. We analyze in detail the effects of going beyond the t=0 approximation. Our model predicts the dynamical generation of several open-charm baryon resonances in different isospin and strangeness channels, some of which can be clearly identified with recently observed states.

• OSTI ID: 21296533
• Journal Information: Physical Review. C, Nuclear Physics, Vol. 80, Issue 5; Other Information: DOI: 10.1103/PhysRevC.80.055206; (c) 2009 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2813
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
AMPLITUDES
BARYONS
COUPLED CHANNEL THEORY
GROUND STATES
INTERACTIONS
ISOSPIN
LIPPMANN-SCHWINGER EQUATION
PSEUDOSCALAR MESONS
RESONANCE PARTICLES
SCATTERING
SIMULATION
STRANGENESS
T CHANNEL
ZERO-RANGE APPROXIMATION