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arXiv · hep-ph/0008332

Estimation of Collision Impact Parameter

M. Savina·S. Shmatov·P. Zarubin
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Abstract

We demonstrate that the nuclear collision geometry (i.e. impact parameter) can be determined with 1.5 fm accuracy in an event-by-event analysis by measuring the transverse energy flow in the pseudorapidity region $3 \le |η| \le 5$ with a minimal dependence on collision dynamics details at the LHC energy scale. Using the HIJING model we have illustrated our calculation by a simulation of events of nucleus-nucleus interactions at the c.m.s energy from 1 up to 5.5 TeV per nucleon and various type of nuclei.

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M. Savina, S. Shmatov, P. Zarubin. 2000-08-31. Estimation of Collision Impact Parameter. https://doi.org/10.1088/0954-3899%2F27%2F11%2F307

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