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Double charmonium production in exclusive bottomonium decays

  • Elementary Particles and Fields
  • Theory
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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 L z ≠ 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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Authors and Affiliations

  1. Institute for High Energy Physics, Protvino, Moscow oblast, 142284, Russia

    V. V. Braguta, A. K. Likhoded & A. V. Luchinsky

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  1. V. V. Braguta
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  2. A. K. Likhoded
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  3. A. V. Luchinsky
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Correspondence to V. V. Braguta.

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Original Russian Text © V.V. Braguta, A.K. Likhoded, A.V. Luchinsky, 2010, published in Yadernaya Fizika, 2010, Vol. 73, No. 6, pp. 1091–1105.

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Braguta, V.V., Likhoded, A.K. & Luchinsky, A.V. Double charmonium production in exclusive bottomonium decays. Phys. Atom. Nuclei 73, 1054–1068 (2010). https://doi.org/10.1134/S1063778810060207

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