Physics of Atomic Nuclei

, Volume 73, Issue 6, pp 1054–1068

Double charmonium production in exclusive bottomonium decays

  • V. V. Braguta
  • A. K. Likhoded
  • A. V. Luchinsky
Elementary Particles and Fields Theory

Abstract

Exclusive bottomonium decays leading to the production of charmonium pairs are considered. The respective decay widths are calculatedwithin the approach of line-cone expansion for the amplitude and nonrelativistic QCD. It is shown that the production of Lz ≠ 0 P-wave charmonium states is possible even in the leading-twist approximation. This means a violation of selection rules that require the suppression of such decays. The reason for this violation is discussed in detail.

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Copyright information

© Pleiades Publishing, Ltd. 2010

Authors and Affiliations

  • V. V. Braguta
    • 1
  • A. K. Likhoded
    • 1
  • A. V. Luchinsky
    • 1
  1. 1.Institute for High Energy PhysicsProtvino, Moscow oblastRussia

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