Advertisement

Electromagnetic structure and weak decay of pseudoscalar mesons in a light-front QCD-inspired model

  • L. A. M. Salcedo
  • J. P. B. C. de MeloEmail author
  • D. Hadjimichef
  • T. Frederico
Hadron Physics

Abstract.

We study the scaling of the 3 S 1-1 S 0 meson mass splitting and the pseudoscalar weak-decay constants with the mass of the meson, as seen in the available experimental data. We use an effective light-front QCD-inspired dynamical model regulated at short distances to describe the valence component of the pseudoscalar mesons. The experimentally known values of the mass splitting, decay constants (from global lattice-QCD averages) and the pion charge form factor up to 4 [GeV/c]2 are reasonably described by the model.

PACS.

12.39.Ki Relativistic quark model 13.20.-v Leptonic, semileptonic, and radiative decays of mesons 14.40.-n Mesons 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    M.V. Terentev, Sov. J. Nucl. Phys. 24, 106 (1976)Google Scholar
  2. 2.
    V.B. Berestesky, M.V. Terentev, Sov. J. Nucl. Phys. 24, 547 (1976)Google Scholar
  3. 3.
    S.J. Brodsky, H.C. Pauli, S.S. Pinsky, Phys. Rep. 301, 299 (1998). CrossRefADSMathSciNetGoogle Scholar
  4. 4.
    H.C. Pauli, Nucl. Phys. B (Proc. Suppl.) 90, 259 (2000).CrossRefADSMathSciNetGoogle Scholar
  5. 5.
    H.C. Pauli, Nucl. Phys. B (Proc. Suppl.) 90, 154 (2000).CrossRefADSMathSciNetGoogle Scholar
  6. 6.
    H.C. Pauli, Eur. Phys. J. C 7, 289 (1998).CrossRefADSMathSciNetGoogle Scholar
  7. 7.
    H.C. Pauli, DLCQ and the effective interactions in hadrons, in New Directions in Quantum Chromodynamics, edited by C.R. Ji, D.P. Min (AIP, 1999) pp. 80-139.Google Scholar
  8. 8.
    T. Frederico, H.-C. Pauli, Phys. Rev. D 64, 054007 (2001)CrossRefADSGoogle Scholar
  9. 9.
    S. Capstick, S. Godfrey, Phys. Rev. D 41, 2856 (1990).CrossRefADSGoogle Scholar
  10. 10.
    W. Jaus, Phys. Rev. D 53, 1349 (1996).CrossRefADSGoogle Scholar
  11. 11.
    Particle Data Group (S. Eidelman), Phys. Lett. B 592, 1 (2004) (URL: http://pdg.lbl.gov).CrossRefADSGoogle Scholar
  12. 12.
    C.D. Roberts, Unifying aspects of light- and heavy systems, ArXiv:nucl-th/0304050.Google Scholar
  13. 13.
    E.F. Suisso, J.P.B.C. de Melo, T. Frederico, Phys. Rev. D 65, 094009 (2002).CrossRefADSGoogle Scholar
  14. 14.
    S.S. Gershtein, M. Yu. Khlopov, JETP Lett. 23, 338 (1976)ADSGoogle Scholar
  15. 15.
    L.A.M. Salcedo, J.P.B.C. de Melo, D. Hadjmichef, T. Frederico, Braz. J. Phys. 34, 297 (2004).CrossRefGoogle Scholar
  16. 16.
    J.M. Flynn, C.T. Sachrajda, Adv. Ser. Direct. High Energy Phys. 15, 402 (1998).Google Scholar
  17. 17.
    C. McNeile, Heavy quarks on the lattice, hep-lat/0210026.Google Scholar
  18. 18.
    H. Wittig, Status of lattice calculations of B-meson decays and mixing, hep-ph/0310329.Google Scholar
  19. 19.
    M.A. Ivanov, Yu. L. Kalinovsky, P. Maris, C.D. Roberts, Phys. Lett. B 416, 29 (1998).CrossRefADSGoogle Scholar
  20. 20.
    R. Baldini, Eur. Phys. J. C 11, 709 (1999)CrossRefADSGoogle Scholar
  21. 21.
    E.B. Dally, Phys. Rev. Lett. 45, 232 (1980).CrossRefADSGoogle Scholar
  22. 22.
    S.R. Amendolia, Phys. Lett. B 178, 435 (1986).CrossRefADSGoogle Scholar
  23. 23.
    S.B. Gerasimov, Sov. J. Nucl. Phys. 29, 259 (1978)Google Scholar
  24. 24.
    R. Tarrach, Z. Phys. C 2, 221 (1979).CrossRefADSGoogle Scholar
  25. 25.
    T. Frederico, G.A. Miller, Phys. Rev. D 45, 4207 (1992).CrossRefADSGoogle Scholar
  26. 26.
    H.-C. Pauli, Nucl. Phys. B (Proc. Suppl.) 108, 273 (2002)CrossRefADSzbMATHGoogle Scholar
  27. 27.
    T. Frederico, H.-C. Pauli, S.-G. Zhou, Phys. Rev. D 66, 054007Google Scholar
  28. 28.
    J.H.O. Sales, T. Frederico, B.V. Carlson, P.U. Sauer, Phys. Rev. C 61, 044003 (2000)CrossRefADSGoogle Scholar
  29. 29.
    T. Frederico, G.A. Miller, Phys. Rev. D 50, 210 (1994).CrossRefADSGoogle Scholar
  30. 30.
    J.P.B.C. de Melo, H.W. Naus, T. Frederico, Phys. Rev. C 59, 2278 (1999).CrossRefADSGoogle Scholar
  31. 31.
    J.P.B.C. de Melo, T. Frederico, E. Pace, G. Salmè, Nucl. Phys. A 707, 399 (2002).CrossRefADSGoogle Scholar
  32. 32.
    S.R. Amendolia, Phys. Lett. B 178, 116 (1986).Google Scholar
  33. 33.
    C. Itzykson, J.B. Zuber, Quantum Field Theory (McGraw-Hill, 1980).Google Scholar
  34. 34.
    M. Gell-Mann, M.R. Oakes, B. Renner, Phys. Rev. 175, 2195 (1968).CrossRefADSGoogle Scholar
  35. 35.
    CLEO Collaboration (G. Bonvicini), Phy. Rev. D 70, 112004 (2004).CrossRefADSGoogle Scholar
  36. 36.
    BES Collaboration (M. Ablikim), Phys. Lett. B 610, 183 (2005).ADSCrossRefGoogle Scholar
  37. 37.
    M.G.C.L. Hoinacki, W.R.B. de Araújo, T. Frederico, Braz. J. Phys. 35, 865 (2005).CrossRefGoogle Scholar
  38. 38.
    J.P.B.C. de Melo, T. Frederico, E. Pace, G. Salmè, Phys. Lett. B 581, 75 (2004).CrossRefADSGoogle Scholar

Copyright information

© Società Italiana di Fisica and Springer-Verlag 2006

Authors and Affiliations

  • L. A. M. Salcedo
    • 1
  • J. P. B. C. de Melo
    • 2
    • 3
    Email author
  • D. Hadjimichef
    • 4
  • T. Frederico
    • 1
  1. 1.Departamento de FısicaInstituto Tecnológico de Aeronáutica, Cento Técnico AeroespacialS ao PauloBrazil
  2. 2.Centro de Ciências Exatas e TecnológicasUniversidade Cruzeiro do SulS ao PauloBrazil
  3. 3.Instituto de Fısica TeóricaUniversidade Estadual PaulistaS ao PauloBrazil
  4. 4.Instituto de Fısica e MatemáticaUniversidade Federal de PelotasRio Grande do SulBrazil

Personalised recommendations