{"title":"不同大型强子对撞机能量下 pp 对撞中 pions 的动态波动:利用因子相关器的深入分析","authors":"Tumpa Biswas, Azharuddin Ahmed, Subhadeep Paul, Dibakar Dhar, Sanjib Kumar Manna, Mehedi Kalam, Dipak Ghosh, Prabir Kumar Haldar","doi":"10.1007/s12648-024-03385-z","DOIUrl":null,"url":null,"abstract":"<p>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 <i>pp</i> collisions at different center-of-mass (c.m) energies <span>\\(\\sqrt{s}=\\)</span> 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 <span>\\(\\alpha\\)</span>-model and <span>\\(\\log\\)</span>-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 <span>\\(\\sqrt{s}\\)</span> = <span>\\(2.76-13\\)</span> TeV is observed. From the analysis of oscillatory multiplicity moments, the ratios <span>\\(H_q\\)</span> (cumulant over factorial moments <span>\\(K_q/F_q\\)</span>) 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 <span>\\(\\sqrt{s}\\)</span> = 13 TeV.</p>","PeriodicalId":584,"journal":{"name":"Indian Journal of Physics","volume":null,"pages":null},"PeriodicalIF":1.6000,"publicationDate":"2024-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Dynamical fluctuations of pions in pp collisions at different LHC energies: an in-depth analysis with factorial correlator\",\"authors\":\"Tumpa Biswas, Azharuddin Ahmed, Subhadeep Paul, Dibakar Dhar, Sanjib Kumar Manna, Mehedi Kalam, Dipak Ghosh, Prabir Kumar Haldar\",\"doi\":\"10.1007/s12648-024-03385-z\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>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 <i>pp</i> collisions at different center-of-mass (c.m) energies <span>\\\\(\\\\sqrt{s}=\\\\)</span> 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 <span>\\\\(\\\\alpha\\\\)</span>-model and <span>\\\\(\\\\log\\\\)</span>-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 <span>\\\\(\\\\sqrt{s}\\\\)</span> = <span>\\\\(2.76-13\\\\)</span> TeV is observed. From the analysis of oscillatory multiplicity moments, the ratios <span>\\\\(H_q\\\\)</span> (cumulant over factorial moments <span>\\\\(K_q/F_q\\\\)</span>) 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 <span>\\\\(\\\\sqrt{s}\\\\)</span> = 13 TeV.</p>\",\"PeriodicalId\":584,\"journal\":{\"name\":\"Indian Journal of Physics\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":1.6000,\"publicationDate\":\"2024-08-25\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Indian Journal of Physics\",\"FirstCategoryId\":\"101\",\"ListUrlMain\":\"https://doi.org/10.1007/s12648-024-03385-z\",\"RegionNum\":4,\"RegionCategory\":\"物理与天体物理\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"PHYSICS, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Indian Journal of Physics","FirstCategoryId":"101","ListUrlMain":"https://doi.org/10.1007/s12648-024-03385-z","RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"PHYSICS, MULTIDISCIPLINARY","Score":null,"Total":0}
Dynamical fluctuations of pions in pp collisions at different LHC energies: an in-depth analysis with factorial correlator
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 \(\sqrt{s}=\) 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 \(\sqrt{s}\) = \(2.76-13\) 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 \(\sqrt{s}\) = 13 TeV.
期刊介绍:
Indian Journal of Physics is a monthly research journal in English published by the Indian Association for the Cultivation of Sciences in collaboration with the Indian Physical Society. The journal publishes refereed papers covering current research in Physics in the following category: Astrophysics, Atmospheric and Space physics; Atomic & Molecular Physics; Biophysics; Condensed Matter & Materials Physics; General & Interdisciplinary Physics; Nonlinear dynamics & Complex Systems; Nuclear Physics; Optics and Spectroscopy; Particle Physics; Plasma Physics; Relativity & Cosmology; Statistical Physics.