Electromagnetic splittings for hadrons with dressed constituent quarks

  • B. Silvestre-Brac
  • C. Semay
  • F. Brau
Hadronic resonances


Electromagnetic splittings for hadrons are calculated in a formalism where the constituent quarks are considered as dressed quasiparticles. The electromagnetic interaction, which contains coulomb, contact and hyperfine terms, is folded with the quark electrical density. The strong potential is a modification of the well known funnel potential. Our model contains only one free parameter and the agreement with experimental data is reasonable although it seems very difficult to obtain a perfect description in any case.

PACS codes.

12.39.Pn - Potential models 13.40.Dk - Electromagnetic process and properties 


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. 1. W. Lucha, F.F. Schöberl, and D. Gromes: Phys. Rep. 200, 127 (1991) CrossRefGoogle Scholar
  2. 2. C. Semay and B. Silvestre-Brac: Nucl. Phys A 618, 455 (1997)Google Scholar
  3. 3. C. Semay and B. Silvestre-Brac: Nucl. Phys A 647, 72 (1999)Google Scholar
  4. 4. C. Semay, D. Baye, M. Hesse, and B. Silvestre-Brac: Phys. Rev. E 64, 016703 (2001)CrossRefGoogle Scholar
  5. 5. B. Silvestre-Brac, R. Bonnaz, C. Semay, and F. Brau: ISN Grenoble, ISN-00-66, 2000 (unpublished)Google Scholar
  6. 6. F. Brau and C. Semay: Phys. Rev. D 58, 034015 (1998)Google Scholar
  7. 7. C. Semay, F. Brau, and B. Silvestre-Brac: Phys. Rev. C 64, 055202 (2001)CrossRefGoogle Scholar
  8. 8. W.H. Blask, U. Bohn, M.G. Huber, B.C. Metsch, and H.R. Petry: Z. Phys. A 337, 327 (1990)Google Scholar
  9. 9. F. Brau, C. Semay, and B. Silvestre-Brac: Phys. Rev. C 66, 055202 (2002)CrossRefGoogle Scholar
  10. 10. M. Genovese, J.M. Richard, B. Silvestre-Brac, and K. Varga: Phys. Rev. D 59, 014012 (1998); and references there in.Google Scholar
  11. 11. B. Silvestre-Brac and C. Semay: ISN Grenoble, ISN-93-69, 1993 (unpublished)Google Scholar
  12. 12. C. Semay and B. Silvestre-Brac: Z. Phys. C 61, 271 (1994)Google Scholar
  13. 13. K. Hagiwara et al. (Particle Data Group): Phys. Rev. D 66, 01001 (2002)Google Scholar

Copyright information

© Società Italiana di Fisica, Springer-Verlag 2004

Authors and Affiliations

  • B. Silvestre-Brac
    • 1
  • C. Semay
    • 2
  • F. Brau
    • 2
  1. 1.LPSC, 53, Av. des Martyrs, F-38026 Grenoble-Cedex, France
  2. 2.Université de Mons-Hainaut, Place du Parc, 20, B-7000 Mons, Belgium

Personalised recommendations