Published June 28, 2010 | Version v1
Journal article

D mesic nuclei

  • 1. Departamento de Fisica Atomica Molecular y Nuclear, Universidad de Granada, 18071 Granada (Spain)
  • 2. Departamento de Fisica Teorica and IFIC, Centro Mixto Universidad de Valencia-CSIC, Institutos de Investigacion de Paterna, Apdo. correos 22085, 46071 Valencia (Spain)
  • 3. Theory Group, KVI, University of Groningen, Zernikelaan 25, 9747AA Groningen (Netherlands)

Description

The energies and widths of several D0 meson bound states for different nuclei are obtained using a D-meson selfenergy in the nuclear medium, which is evaluated in a selfconsistent manner using techniques of unitarized coupled-channel theory. The kernel of the meson-baryon interaction is based on a model that treats heavy pseudoscalar and heavy vector mesons on equal footing, as required by heavy quark symmetry. We find D0 bound states in all studied nuclei, from 12C up to 208Pb. The inclusion of vector mesons is the keystone for obtaining an attractive D-nucleus interaction that leads to the existence of D0-nucleus bound states, as compared to previous studies based on SU(4) flavor symmetry. In some cases, the half widths are smaller than the separation of the levels, what makes possible their experimental observation by means of a nuclear reaction. This can be of particular interest for the future PANDA-FAIR physics program. We also find a D+ bound state in 12C, but it is too broad and will have a significant overlap with the energies of the continuum.

Availability note (English)

Available from http://dx.doi.org/10.1016/j.physletb.2010.05.056

Additional details

Identifiers

DOI
10.1016/j.physletb.2010.05.056;
arXiv
arXiv:1004.2634v2;
PII
S0370-2693(10)00648-9;

Publishing Information

Journal Title
Physics Letters. Section B
Journal Volume
690
Journal Issue
4
Journal Page Range
p. 369-375
ISSN
0370-2693
CODEN
PYLBAJ

Optional Information

Copyright
Copyright (c) 2010 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.