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arXiv · 1103.1668

Photon multiplicity measurements at forward rapidity in the ALICE experiment at CERN

S. K. Prasad
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Abstract

We present the first preliminary results on photon multiplicity measurements at LHC at forward pseudorapidity (2.3 $\textless$ $η$ $\textless$ 3.9) in proton-proton ($pp$) collisions at $\sqrt{s}$ = 7 TeV. The multiplicity distribution is found to be reasonably well explained by a double Negative Binomial Distribution (NBD). The average photon multiplicity increases logarithmically with $\sqrt{s}$. It is found that none of the models we used (PYTHIA6D6T, PHOJET, and HERWIG) could explain the data.

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S. K. Prasad. 2011-03-09. Photon multiplicity measurements at forward rapidity in the ALICE experiment at CERN. https://doi.org/10.1016/j.nuclphysa.2011.05.091

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