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Predictions of the Generalized Glauber Model for the coherent $ρ$-production at RHIC and the STAR data

L. Frankfurt·M. Strikman·M. Zhalov
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Abstract

We calculate the rapidity distribution and the total cross section of coherent and incoherent $ρ$-production in the heavy ion ultraperipheral collisions (UPC) at $\surd s_{NN}=130$ GeV using the generalized vector dominance model(GVDM) and the Gribov- Glauber approach. We find the coherent cross section of $ρ$-production $σ_{coh}=490$ mb compared to the $σ_{coh}=370\pm 170\pm 80$ mb recently reported by the STAR collaboration at RHIC. The predicted cross section inside the acceptance of the experiment, $|y|\le 1$, agrees with the data. It is emphasized that measurements of the rapidity distribution will provide a much more stringent test of the model.

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L. Frankfurt, M. Strikman, M. Zhalov. 2002-12-10. Predictions of the Generalized Glauber Model for the coherent $ρ$-production at RHIC and the STAR data. https://doi.org/10.1103/physrevc.67.034901

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