Advertisement

Spectroscopy and Liftime of Mesons with Bottom and Charm Quarks

  • M. A. K. Lodhi
  • A. A. El-Hady
  • J. P. Vary
Part of the Few-Body Systems book series (FEWBODY, volume 12)

Abstract

The understanding of hadronic matter properties in high density and temperature environment is necessary for interpreting relativistic heavy ion collision data. Accordingly the bound state of a bottom and acharm quark B c is of great theoretical and experimental importance. We have calculated the spectrum of this meson in Bethe-Salpeter model using two reductions. The ground state mass and decay lifetime of B c predicted by this model are found in excellent agreement with the experimental values observed at Fermi Lab. We evaluate the mass of the pseudo-scalar B c meson as 6.356 GeV/c 2 and 6.380 GeV/c 2 and the lifetime as 0.47 ps and 0.46 ps respectively in the two reductions ‚ in good agreement with the recently reported mass of 6.40 ± 0.39 (stat.) ± 0.13 (syst.) GeV/c 2 and lifetime of 0.46 −0.16 +0.18 (stat.) ± 0.03 (syst.) ps by the CDF Collaboration. We evaluate the decay constant of the B c meson and compare different contributions to its decay width.

Keywords

Gauge Boson Decay Width Charm Quark Weak Decay Meson Spectrum 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    J.F. Donoghue, E. Golowich, Holstein: Dynamics of the Standard Model Cambridge University Press 1992MATHCrossRefGoogle Scholar
  2. 2.
    E.E. Salpeter and H.A. Bethe: Phys. Rev. 84, 1232 (1951)MathSciNetADSMATHCrossRefGoogle Scholar
  3. 3.
    C. Itzykson and J.B. Zuber: Quantum Field theory. New York: McGraw-Hill 1980 (Chapter 10 gives a review of Bethe-Salpeter equation)Google Scholar
  4. 4.
    G.E. Brown and A.D. Jackson: The Nucleon-Nucleon Interaction. New York: North-Holland 1976 and references thereinGoogle Scholar
  5. 5.
    B. Silvestre-Brac, A. Bilal, C. Gignoux, P. Schuck: Phys. Rev. D29, 2275(1984)ADSGoogle Scholar
  6. 6.
    D. Eyre and J.P. Vary: Phys. Rev. D34, 3467 (1986)ADSGoogle Scholar
  7. 7.
    J.R. Spence and J.P. Vary: Phys. Rev. D35, 2191 (1987)ADSGoogle Scholar
  8. J.R. Spence and J.P. Vary: Phys. Rev. C47, 1282 (1993)ADSGoogle Scholar
  9. 8.
    R. Blankenbecler and R. Sugar: Phys. Rev. 142, 1051 (1966)MathSciNetADSCrossRefGoogle Scholar
  10. 9.
    A.J. Sommerer, J.R. Spence, J.P. Vary: Mod. Phys. Lett. A8, 3537 (1993)ADSGoogle Scholar
  11. A.J. Sommerer, J.R. Spence, J.P. Vary: Phys. Rev. C49, 513 (1994)ADSGoogle Scholar
  12. 10.
    Alan J. Sommerer, A. Abd El-Hady, John R. Spence, James P. Vary: Phys. Lett. B348, 277 (1995)ADSGoogle Scholar
  13. 11.
    R.H. Thompson: Phys. Rev. D1, 110 (1970)ADSGoogle Scholar
  14. 12.
    J.R. Spence and J.P. Vary: Phys. Rev. C47, 1282 (1993)ADSGoogle Scholar
  15. A.J. Sommerer, J.R. Spence, J.P. Vary: Mod. Phys. Lett. A8, 3537 (1993)ADSGoogle Scholar
  16. 13.
    Nathan Isgur, Daryl Scora, Benjamin Grinstein, Mark B. Wise: Phys. Rev. D39, 799 (1989)Google Scholar
  17. 14.
    F. Abe et al: The CDF Collaboration, hep-ex/9804014; W. Hav and V. Papadimitriou: private communicationGoogle Scholar
  18. 15.
    E. Eichten and C. Quigg: Phys. Rev. D49, 5845 (1994)ADSGoogle Scholar
  19. 16.
    S.S. Gershtein, V.V. Kiselev, A.K. Likhoded, A.V. Tkabladze, A.V. Berezhnoi, A.I. Onishchenko: hep-ph/9803433Google Scholar
  20. V.V. Kiselev, A.K. Likhoded, A.V. Tkabladze: Phys. Rev. D51, 3613 (1995)ADSGoogle Scholar
  21. S.S. Gershtein, V.V. Kiselev, A.K. Likhoded, A.V. Tkabladze: Phys. Usp. 38, 1 (1995)ADSCrossRefGoogle Scholar
  22. 17.
    M. Chabab: LMPHE/97-04Google Scholar
  23. M. Chabab:Phys. Lett. B325, 205 (1994)ADSGoogle Scholar
  24. 18.
    N. Isgur and M.B.Wise: Phys. Lett. B232, 113 (1989)ADSGoogle Scholar
  25. N. Isgur and M.B.Wise:Phys. Lett.B237, 527 (1990)ADSGoogle Scholar
  26. 19.
    M.B. Voloshin and M.A. Shifman: Yad. Fiz. 47, 801,1988Google Scholar
  27. [M.B. Voloshin and M.A. Shifman: Sov. J.N.P. 47, 511(1988)]Google Scholar
  28. 20.
    H. Georgi: Phys. Lett. B24 Google Scholar
  29. 21.
    M. Neubert: Phys. Rep. 245, 259 (1994) and references thereinADSCrossRefGoogle Scholar
  30. 22.
    A. Abd El-Hady, K.S. Gupta, A.J. Sommerer, J. Spence, J.P. Vary: Phys. Rev. D51, 5245 (1995)ADSGoogle Scholar
  31. 23.
    A. Abd El-Hady, A. Datta, K.S. Gupta, J.P. Vary: Phys. Rev. D55, 6780 (1997)ADSGoogle Scholar
  32. 24.
    A. Abd El-Hady, A. Datta, J.P. Vary: Phys. Rev. D58, 6780 (1998)Google Scholar
  33. 25.
    S. Veseli and I. Dunietz: Phys. Rev. D54, 6803 (1996)ADSGoogle Scholar
  34. 26.
    C. Quigg: Proceedings of the Workshop on B Physics at Hadron Accelerators, ed. by P. McBride and C. Shekhar Mishra, Fermilab-CONF-93/267 (SSCL-SR-1225) 1994Google Scholar
  35. 27.
    A.M. Poskanzer, J.W. Harris, L.S. Schroeder (eds.): Nucl. Phys. A590, lc-653c (1995)Google Scholar

Copyright information

© Springer-Verlag Wien 2000

Authors and Affiliations

  • M. A. K. Lodhi
    • 1
  • A. A. El-Hady
    • 2
  • J. P. Vary
    • 3
  1. 1.Department of PhysicsTexas Tech UniversityLubbockUSA
  2. 2.Department of PhysicsZagazig UniversityZagazigEgypt
  3. 3.Department of Physics and AstronomyIowa State UniversityAmesUSA

Personalised recommendations