FIZIKA B 11 (2002)  2, 115-134

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MULTIPLE PION AND KAON PRODUCTION IN HIGH-ENERGY NUCLEUS-NUCLEUS COLLISIONS: MEASUREMENTS VERSUS SPECIFIC MODELS

P. GUPTAROY, BHASKAR DEb,i, S. BHATTACHARYYAb,,j
and D. P. BHATTACHARYYAa,k

aDepartment of Theoretical Physics, Indian Association for the Cultivation of Science, Kolkata-700032, India

bPhysics and Applied Mathematics Unit (PAMU), Indian Statistical Institute, Kolkata-700108, India

E-mail addresses:  ibhaskar_r@www.isical.ac.in,   jbsubrata@www.isical.ac.in, ktpdpb@mahendra.iacs.res.in

Received 17 October 2001; revised manuscript received 18 January 2002
Accepted 27 May 2002        Online 7 February 2003

The pion and kaon rapidity densities and the nature of kaon-pion ratios offer two very prominent and crucial physical observables on which modestly sufficient data for heavy nucleus collisions are available to date. In the light of two sets of models - one purely phenomenological and the other with a modest degree of a dynamical basis - we try to examine the state of agreement between calculations and experimental results obtainable from the past and the latest measurements. Impact and implications of all these would also finally be spelt out.

PACS numbers: 25.75.-q, 13.85.Ni, 12.38.Mh
UDC 529.126

Keywords: relativistic heavy ion collisions, inclusive production, quark gluon plasma

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