Europhys. Lett.
Volume 65, Number 3, February 2004
Page(s) 311 - 315
Section Nuclear physics
Published online 01 January 2004
Europhys. Lett., 65 (3) , pp. 311-315 (2004)
DOI: 10.1209/epl/i2003-10104-5

Validity of the negative binomial multiplicity distribution in case of ultra-relativistic nucleus-nucleus interaction in different azimuthal bins

D. Ghosh, A. Deb, P. K. Haldar, S. R. Sahoo and D. Maity

Nuclear and Particle Physics Research Centre, Department of Physics Jadavpur University - Kolkata 700 032, India

(Received 28 April 2003; accepted in final form 24 November 2003)

This work studies the validity of the negative binomial distribution in the multiplicity distribution of charged secondaries in $\chem{{}^{16}O}$ and $\chem{{}^{32}S}$ interactions with $\chem{AgBr}$ at 60 $\un{GeV}$/ c per nucleon and 200 $\un{GeV}$/ c per nucleon, respectively. The validity of negative binomial distribution (NBD) is studied in different azimuthal phase spaces. It is observed that the data can be well parameterized in terms of the NBD law for different azimuthal phase spaces.

25.75.-q - Relativistic heavy-ion collisions.
24.60.Ky - Fluctuation phenomena.

© EDP Sciences 2004