Dynamical fluctuations of pions in pp collisions at different LHC energies: an in-depth analysis with factorial correlator

被引：1
作者：
Biswas, T. [1 ]
Ahmed, A. [1 ]
Paul, S. [1 ]
Dhar, D. [1 ]
Manna, S. K. [2 ]
Kalam, M. [3 ]
Ghosh, D. [4 ]
Haldar, P. K. [1 ]
机构：
[1] Cooch Behar Panchanan Barma Univ, Dept Phys, Vivekananda St, Cooch Behar 736101, India
[2] Chakdaha Coll, Dept Phys, Nadia 741222, India
[3] Aliah Univ, Dept Phys, Kolkata 700160, India
[4] Jadavpur Univ, Sir CV Raman Ctr Phys & Mus, Kolkata 700032, India
来源：
INDIAN JOURNAL OF PHYSICS | 2025年 / 99卷 / 04期
关键词：
Factorial correlator; pp collisions; PYTHIA; AMPT; UrQMD; Scaled factorial moment; Oscillatory multiplicity moments; QUARK-GLUON PLASMA; PB-PB COLLISIONS; MULTIPARTICLE PRODUCTION; MULTIPLICITY MOMENTS; NUCLEUS COLLISIONS; RING-LIKE; JET-LIKE; INTERMITTENCY; RAPIDITY; CUMULANT;
D O I：
10.1007/s12648-024-03385-z
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
This paper presents an analysis on the basis of factorial correlators and oscillatory multiplicity moments among the pions extracted from Monte Carlo (MC) generated PYTHIA(v8.3), AMPT(v2.26) and UrQMD(v3.4) models in pp collisions at different center-of-mass (c.m) energies root s=2.76 - 13 TeV. During this investigation, we have found the presence of short-range correlation and our overall findings are accordant with the predictions of the alpha-model and log-normal approximation which indicates the existence of intermittent nature of self-similar dynamical fluctuations. Short-range Correlation strength gradually decreases with the increase in collision energies from root s= 2.76-13 TeV is observed. From the analysis of oscillatory multiplicity moments, the ratios H-q (cumulant over factorial moments K-q/F-q) have been derived for each MC generated Model with LHC energies. It is extremely interesting to observe that the oscillations from PYTHIA and UrQMD are quite different from the AMPT model at root s= 13 TeV.
引用
收藏
页码：1447 / 1461
页数：15
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