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FIZIKA B 14 (2005) 3, 317 - 326
 
COMPOUND MULTIPLICITY DISTRIBUTION IN NUCLEUS-NUCLEUS INTERACTIONS -
PHASE TRANSITION STUDY
DIPAK GHOSH, ARGHA DEB, SUBRATA BISWAS, PASUPATI MANDAL and PRABIR KUMAR
HALDAR
Nuclear and Particle Physics Research Centre, Department of Physics,
Jadavpur University, Kolkata - 700 032, India
Received 12 March 2004; Accepted
25 April 2005
Online 13 February 2006
Experimental data on compound multiplicity distribution produced in 24Mg-AgBr
and 12C-AgBr interactions, both at 4.5A GeV, have been analysed in terms of
scaled factorial moments. We have calculated the values of generalized dimension Dq
for q=2,3,4,5,6 and 7 with the help of intermittency exponent aq.
From the knowledge of Dq, the multifractal specific heat is calculated for
different multiplicity bin ranges. The parameter lq
(lq=(aq +1)/q)
is calculated from aq to look for possible
non-thermal phase transition. The analysis reveals no evidence of non-thermal phase
transition. Instead, different specific heat in different multiplicity bins has been
observed.
PACS numbers: 25.75-q, 24.60 Ky
UDC 539.129
Keywords: 24Mg-AgBr and 12C-AgBr interactions, compound
multiplicity distribution, scaled factorial moments, search for non-thermal phase
transition, multifractal specific heat
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