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Raspodjele složene višestrukosti u sudarima jezgra-jezgra – proučavanje faznog prijelaza

Authors :
Ghosh, Dipak
Deb, Argha
Biswas, Subrata
Mandal, Pasupati
Haldar, Prabir Kumar
Source :
Fizika B : a journal of experimental and theoretical physics, Volume 14, Issue 3
Publication Year :
2005
Publisher :
Croatian Physical Society, 2005.

Abstract

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 αq. From the knowledge of Dq, the multifractal specific heat is calculated for different multiplicity bin ranges. The parameter λq (λq = (αq + 1)/q) is calculated from αq to look for possible non-thermal phase transition. The analysis reveals no evidence of nonthermal phase transition. Instead, different specific heat in different multiplicity bins has been observed.<br />Analizirali smo eksperimentalne podatke o raspodjelama složene višestrukosti u sudarima 24Mg-AgBr i 12C-AgBr, oba na 4.5A GeV, primjenom prilagodnih faktorijalnih momenata. Izračunali smo vrijednosti poopćene dimenzije Dq za q = 2, 3, 4, 5, 6 i 7 pomoću eksponenta prekidanja αq. Te vrijednosti Dq primijenili smo za izračunavanje višefraktalne specifične topline za niz pretinaca. Parametar λq (λq = (αq + 1)/q) smo izračunali na osnovi αq tražeći netermički fazni prijelaz. Analiza nije pokazala prisutnost netermičkog faznog prijelaza, ali smo našli različite specifične topline u pretincima.

Details

Language :
English
ISSN :
13339133 and 13300016
Volume :
14
Issue :
3
Database :
OpenAIRE
Journal :
Fizika B : a journal of experimental and theoretical physics
Accession number :
edsair.od.......951..e6916224ceef5c12192afd1bea24867c