FIZIKA B 19 (2010) 4 , 283-304

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ON PRODUCTION OF `SOFT' PARTICLES IN Au+Au AND Pb+Pb COLLISIONS AT HIGH ENERGIES

A. C. DAS GHOSHa, GOUTAM SAUb, S. K. BISWASc and S. BHATTACHARYYAd
aDepartment of Microbiology, Surendranath College, Kolkata-700009, India
E-mail address: dasghosh@yahoo.co.in
bBeramara RamChandrapur High School, South 24-Pgs, 743609(WB), India
E-mail address: sau_goutam@yahoo.com
cWest Kodalia Adarsha Siksha Sadan, New Barrackpore, Kolkata-700131, India
E-mail address: sunil_biswas2004@yahoo.com
dPhysics and Applied Mathematics Unit(PAMU), Indian Statistical Institute, Kolkata - 700108, India
E-mail address: bsubrata@www.isical.ac.in

Received 27 July 2010;     Revised manuscript received 11 January 2011
Accepted 19 January 2011     Online 21 May 2011

Production of low-pT (soft) hadronic particles in high energy collisions constitutes a significant corner of special interests and problems, as the perturbative quantum chromodynamics does not work in this region. We have probed here into the nature of the light particle production in two symmetric nuclear collisions at two neighbouring energies with the help of two non-standard models. The results are found to be in good agreement with data. Despite this, as the models applied here are not intended to provide deep insights into the actual physical processes involved in such collisions, the phenomenological bounds and constraints which cannot be remedied for the present continue to exist.

PACS numbers: 25.75.-q, 13.85.Ni, 13.60.Hb, 13.60.Ley
UDC 539.126, 539.172

Keywords: relativistic heavy ion collision, inclusive production with identified hadrons, inclusive cross-section, meson production

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