Strong one-pion decay of {sigma}c, {sigma}{sub c}{sup *} and {xi}{sub c}{sup *}

Journal Article · Tue Feb 27 00:00:00 EST 2007 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.2714419· OSTI ID:21056857

Albertus, C; Nieves, J ^[1]; Hernandez, E; Verde-Velasco, J M ^[2]

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1. Departamento de Fisica Atomica, Molecular y Nuclear, Universidad de Granada, E-18071 Granada (Spain)
2. Grupo de Fisica Nuclear, Departamento de Fisica Fundamental e IUFFyM, Facultad de Ciencias, E-37008 Salamanca (Spain)

Working in the framework of a nonrelativistic quark model we evaluate the widths for the strong one-pion decays {sigma}c {yields} {lambda}c {pi}, {sigma}{sub c}{sup *} {yields} {lambda}{sub c} {pi} and {xi}{sub c}{sup *} {yields} {xi}{sub c} {pi}. We take advantage of the constraints imposed by heavy quark symmetry to solve the three-body problem by means of a simple variational ansatz. We use partial conservation of the axial current hypothesis to get the strong vertices from weak axial current matrix elements. Our results are in good agreement with experimental data.

• OSTI ID: 21056857
• Journal Information: AIP Conference Proceedings, Vol. 892, Issue 1; Conference: QCHS7: 7. conference on quark confinement and the hadron spectrum, Ponta Delgada, Acores (Portugal), 2-7 Sep 2006; Other Information: DOI: 10.1063/1.2714419; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
B QUARKS
C QUARKS
HADRONIC PARTICLE DECAY
LAMBDA C-2625 BARYONS
MATRIX ELEMENTS
PARTICLE PRODUCTION
PARTICLE WIDTHS
PIONS
QUARK MODEL
SIGMA BARYONS
SIGMA C-2455 BARYONS
SYMMETRY
T QUARKS
THREE-BODY PROBLEM
VARIATIONAL METHODS
XI C NEUTRAL BARYONS