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

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.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

Dokazi o energijskoj ovisnosti sličnih sljedova emitiranih piona u nuklearnim sudarima

This paper presents a study on energy dependence of self-similar cascading rate of produced pions in nuclear collision in the entire accelerator energy 2.1A GeV-200A GeV using the results of F-moments methodology and Levy stable index in both pseudorapidity (η) space and azimuthal angle (ϕ) space. This analysis reveals a positive dependence of self-similar cascading rate on beam energy.Predstavljamo proučavanje energijske ovisnosti sličnih sljedova piona proizvedenih u nuklearnim sudarima u širokom području energije od 2.1 A GeV do 200A GeV 16O-AgBr sudari na 2.1A GeV i 60A GeV, Pb-Pb sudari na 158A GeV, te 32SAgBr sudari na 200A GeV. Primjenjujemo metodologiju F momenata i Levyjeve stabilne indekse za prostor pseudorapiditeta (η) i prostor azimutalnog kuta (φ). Analize pokazuju pozitivnu ovisnost sličnih sljedova piona o energiji sudara

Levy index analysis in relativistic and ultrarelativistic nuclear collision – Evidence of non-thermal phase transition

839-843An analysis on Levy index of compound hadrons (pions + protons) emitted from 12C-AgBr and 24Mg-AgBr interactions both at 4.5 AGeV/c and 32S-AgBr interactions at 200 AGeV/c using the results of Takagi moment methodology in emission angle (cosθ) space and azimuthal angle (φ) space has been presented. The results of our study reveal non-thermal phase transition at both relativistic and ultrarelativistic energy

Dynamical fluctuation of compound multiplicity in nucleus-nucleus interactions at 4.5 AGeV Evidence of projectile dependence of azimuthal asymmetry

959-964Azinmuthal fluctuations in compound multiplicity (pions + target protons) spectrum emitted from nucleus-nucleus interactions initiated by ²⁴Mg-AgBr and ¹²C-AgBr both at 4.5 AgeV have been studied. The data exhibit the existence of emission asymmetry in the azimuthal plane for both the interactions. Asymmetry is found to depend on the number of compound multiplicity produced