Correlations and Event-by-Event Fluctuations in High Multiplicity Events Produced in 208Pb-208Pb Collisions

Analysis of high multiplicity events produced in 158A GeV/c 208Pb-208Pb collisions is carried out to study the event-by-event fluctuations. The findings reveal that the method of scaled factorial moments can be used to identify the events having densely populated narrow phase space bins. A few event...

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Main Authors: Shakeel Ahmad, Shaista Khan, Ashwini Kumar, Arpit Singh, A. Ahmad, B. K. Singh
Format: Article
Language:English
Published: Wiley 2018-01-01
Series:Advances in High Energy Physics
Online Access:http://dx.doi.org/10.1155/2018/6914627
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author Shakeel Ahmad
Shaista Khan
Ashwini Kumar
Arpit Singh
A. Ahmad
B. K. Singh
author_facet Shakeel Ahmad
Shaista Khan
Ashwini Kumar
Arpit Singh
A. Ahmad
B. K. Singh
author_sort Shakeel Ahmad
collection DOAJ
description Analysis of high multiplicity events produced in 158A GeV/c 208Pb-208Pb collisions is carried out to study the event-by-event fluctuations. The findings reveal that the method of scaled factorial moments can be used to identify the events having densely populated narrow phase space bins. A few events sorted out by adopting this approach are individually analyzed. It is observed that these events do exhibit large fluctuations in their pseudorapidity, η, and azimuthal angle, ϕ, distributions arising due to some dynamical reasons. Two-particle Δη-Δϕ correlation study applied to these events too indicates that some complex two-dimensional structure of significantly high magnitude is present in these events which might have some dynamical origin. The findings reveal that the method of scaled factorial moments may be used as an effective triggering for events with large dynamical fluctuations.
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issn 1687-7357
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spelling doaj-art-df0980b339cd42118459124fbccb8c8b2025-02-03T01:07:29ZengWileyAdvances in High Energy Physics1687-73571687-73652018-01-01201810.1155/2018/69146276914627Correlations and Event-by-Event Fluctuations in High Multiplicity Events Produced in 208Pb-208Pb CollisionsShakeel Ahmad0Shaista Khan1Ashwini Kumar2Arpit Singh3A. Ahmad4B. K. Singh5Department of Physics, Aligarh Muslim University, Aligarh 202002, IndiaDepartment of Physics, Aligarh Muslim University, Aligarh 202002, IndiaDepartment of Physics and Electronics, Dr. Ram Manohar Lohia Avadh University, Faizabad 224001, IndiaDepartment of Physics, Banaras Hindu University, Varanasi 221005, IndiaDepartment of Applied Physics, Aligarh Muslim University, Aligarh 202002, IndiaDepartment of Physics, Banaras Hindu University, Varanasi 221005, IndiaAnalysis of high multiplicity events produced in 158A GeV/c 208Pb-208Pb collisions is carried out to study the event-by-event fluctuations. The findings reveal that the method of scaled factorial moments can be used to identify the events having densely populated narrow phase space bins. A few events sorted out by adopting this approach are individually analyzed. It is observed that these events do exhibit large fluctuations in their pseudorapidity, η, and azimuthal angle, ϕ, distributions arising due to some dynamical reasons. Two-particle Δη-Δϕ correlation study applied to these events too indicates that some complex two-dimensional structure of significantly high magnitude is present in these events which might have some dynamical origin. The findings reveal that the method of scaled factorial moments may be used as an effective triggering for events with large dynamical fluctuations.http://dx.doi.org/10.1155/2018/6914627
spellingShingle Shakeel Ahmad
Shaista Khan
Ashwini Kumar
Arpit Singh
A. Ahmad
B. K. Singh
Correlations and Event-by-Event Fluctuations in High Multiplicity Events Produced in 208Pb-208Pb Collisions
Advances in High Energy Physics
title Correlations and Event-by-Event Fluctuations in High Multiplicity Events Produced in 208Pb-208Pb Collisions
title_full Correlations and Event-by-Event Fluctuations in High Multiplicity Events Produced in 208Pb-208Pb Collisions
title_fullStr Correlations and Event-by-Event Fluctuations in High Multiplicity Events Produced in 208Pb-208Pb Collisions
title_full_unstemmed Correlations and Event-by-Event Fluctuations in High Multiplicity Events Produced in 208Pb-208Pb Collisions
title_short Correlations and Event-by-Event Fluctuations in High Multiplicity Events Produced in 208Pb-208Pb Collisions
title_sort correlations and event by event fluctuations in high multiplicity events produced in 208pb 208pb collisions
url http://dx.doi.org/10.1155/2018/6914627
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