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First Results from Photon Multiplicity Detector at RHIC

Bedangadas Mohanty
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Abstract

We present the first measurement of multiplicity and pseudorapidity distributions of photons in the pseudorapidity region 2.3 < eta < 3.7 for different centralities in Au + Au collisions at sqrt{s_NN} = 62.4 GeV. The pseudorapidity distribution of photons, dominated by neutral pion decays, has been compared to those of identified charged pions, photons, and inclusive charged particles from heavy ion and nucleon-nucleon collisions at various energies. Scaling of photon yield with number of participating nucleons and limiting fragmentation scenario for inclusive photon production has been studied.

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Bedangadas Mohanty. 2005-09-30. First Results from Photon Multiplicity Detector at RHIC. https://doi.org/10.1088/1742-6596%2F50%2F1%2F039

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