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Spectroscopy and Liftime of Mesons with Bottom and Charm Quarks

  • Conference paper
Few-Body Problems in Physics ’99

Part of the book series: Few-Body Systems ((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 +0.18−0.16 (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.

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Author information

Authors and Affiliations

  1. Department of Physics, Texas Tech University, Lubbock, Texas, 79409, USA

    M. A. K. Lodhi

  2. Department of Physics, Zagazig University, Zagazig, Egypt

    A. A. El-Hady

  3. Department of Physics and Astronomy, Iowa State University, Ames, Iowa, 50011, USA

    J. P. Vary

Authors
  1. M. A. K. Lodhi
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  2. A. A. El-Hady
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  3. J. P. Vary
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Editor information

Editors and Affiliations

  1. Department of Physics, Faculty of Science and Technology, Science University of Tokyo, Chiba, Japan

    Shinsho Oryu

  2. Department of Physics, Faculty of Science, Kyushu University, Fukuoka, Japan

    Masayasu Kamimura

  3. Department of Physics, Faculty of General Education, Hosei University, Tokyo, Japan

    Souichi Ishikawa

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© 2000 Springer-Verlag Wien

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Lodhi, M.A.K., El-Hady, A.A., Vary, J.P. (2000). Spectroscopy and Liftime of Mesons with Bottom and Charm Quarks. In: Oryu, S., Kamimura, M., Ishikawa, S. (eds) Few-Body Problems in Physics ’99. Few-Body Systems, vol 12. Springer, Vienna. https://doi.org/10.1007/978-3-7091-6287-3_38

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  • DOI: https://doi.org/10.1007/978-3-7091-6287-3_38

  • Publisher Name: Springer, Vienna

  • Print ISBN: 978-3-7091-7247-6

  • Online ISBN: 978-3-7091-6287-3

  • eBook Packages: Springer Book Archive

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