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arXiv · 1103.4268

Exclusive $D \bar D$ meson pair production in peripheral ultrarelativistic heavy ion collisions

Marta Luszczak·Antoni Szczurek
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Abstract

The cross sections for exclusive $D^+D^-$ and $D^0 \bar {D^0}$ meson pair production in peripheral nucleus - nucleus collisions are calculated and several differential distributions are presented. The calculation of the elementary $γγ\to D \bar D$ cross section is done within the heavy-quark approximation and in the Brodsky- Lapage formalism with distribution amplitudes describing recent CLEO data on leptonic $D^+$ decay. Realistic (Fourier transform of charge density) charge form factors of nuclei are used to generate photon flux factors. Absorption effects are discussed and quantified. The cross sections of a few nb are predicted for RHIC and of a few hundreds of nb for LHC with details depending on the approximation made in calculating elementary $γγ\to D \bar D$ cross sections.

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Marta Luszczak, Antoni Szczurek. 2011-03-22. Exclusive $D \bar D$ meson pair production in peripheral ultrarelativistic heavy ion collisions. https://doi.org/10.1016/j.physletb.2011.04.050

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