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29 March 2024
 
  » arxiv » hep-ph/0302096

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The pair production of charmed mesons in the photon-photon interaction
A. V. Berezhnoy ; V. V. Kiselev ; A. K. Likhoded ;
Date 13 Feb 2003
Subject hep-ph
AffiliationMoscow State U.), V. V. Kiselev, A. K. Likhoded (Serpukhov, IHEP
AbstractIn the framework of the constituent quark model the exclusive pair production of the charmed mesons in the photon-photon interaction is calculated. The comparison of these predictions with the ones of the heavy quark effective theory is performed. It is shown, that the light valence quark of D-meson plays the essential role not only in the hadronization process, but also in the production of the heavy c-quark. Moreover, it is shown, that because of the strong interaction between the initial photon field and the light quark charge the similar situation is kept even in the limit (m_{Q} o infty), whence it is concluded, that the application of the heavy quark effective theory in the case of the photon-photon interaction is not valid because it does not take into account one of the dominant mechanisms of the heavy meson production.
Source arXiv, hep-ph/0302096
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