Estimation of Collision Impact Parameter

Details Estimation of Collision Impact Parameter Estimation of Collision Impact Parameter

2000-08-31

arxiv.org/abs/hep-ph/0008332v1

J.Phys.G27:2267-2274,2001

Physics

High Energy Physics

High Energy Physics - Phenomenology

6 pages, 3 figures

Scientific paper

10.1088/0954-3899/27/11/307

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 $3 \le |\eta| \le 5$ 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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