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

Abstract

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.

Authors:
;  [1]; ;  [2]
  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)
Publication Date:
OSTI Identifier:
21056857
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 892; Journal 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)
Country of Publication:
United States
Language:
English
Subject:
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

Citation Formats

Albertus, C., Nieves, J., Hernandez, E., and Verde-Velasco, J. M.. Strong one-pion decay of {sigma}c, {sigma}{sub c}{sup *} and {xi}{sub c}{sup *}. United States: N. p., 2007. Web. doi:10.1063/1.2714419.
Albertus, C., Nieves, J., Hernandez, E., & Verde-Velasco, J. M.. Strong one-pion decay of {sigma}c, {sigma}{sub c}{sup *} and {xi}{sub c}{sup *}. United States. doi:10.1063/1.2714419.
Albertus, C., Nieves, J., Hernandez, E., and Verde-Velasco, J. M.. Tue . "Strong one-pion decay of {sigma}c, {sigma}{sub c}{sup *} and {xi}{sub c}{sup *}". United States. doi:10.1063/1.2714419.
@article{osti_21056857,
title = {Strong one-pion decay of {sigma}c, {sigma}{sub c}{sup *} and {xi}{sub c}{sup *}},
author = {Albertus, C. and Nieves, J. and Hernandez, E. and Verde-Velasco, J. M.},
abstractNote = {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.},
doi = {10.1063/1.2714419},
journal = {AIP Conference Proceedings},
number = 1,
volume = 892,
place = {United States},
year = {Tue Feb 27 00:00:00 EST 2007},
month = {Tue Feb 27 00:00:00 EST 2007}
}