Pion Fluctuation Study in Pb–Pb Collision at 2.76 TeV per Nucleon Pair from ALICE Experiment with Chaos and Complex Network-Based Methods

Bhaduri, Susmita; Bhaduri, Anirban; Ghosh, Dipak

doi:10.1134/s1547477119030051

Cited by 6 publications

(12 citation statements)

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“…However, future data of pp collision will provide opportunities to validate different approaches [2]. Apart from conventional approaches to study dynamics of particle production in high energy collision the present authors proposed a new approach with successful application in context of symmetry scaling in AA collision data from ALICE Collaboration [3] in [4], pp collisions at 8TeV from CMS collaboration [5] in [6] and also in other numerous works with different collision data. This different approach essentially analyses fluctuation pattern from the perspective of symmetry scaling or degree of self-similarity involved in the process.…”

Section: Introductionmentioning

confidence: 99%

“…We have performed the scaling analysis of the pseudorapidity space taken out from Pb-Pb VSD masterclass data at 2.76T eV per nucleon pair from AL-ICE Collaboration [3] using both the method of complex network based Visibility Graph and multifractal-DFA(MF-DFA) [15,16], to study the prospective phase transition and the signature of QGP [29,4]. We also studied multiplicity fluctuation process in nucleus-nucleus and hadron-nucleus interactions by applying complex network and chaos based Visibility Graph methodology in quite a few recent works [30,28,31,32,33,34,35,36,6].…”

Section: Introductionmentioning

confidence: 99%

“…. , 1024 and it is observed that for a particular q, F q (s) rises in value with increasing s. If the data series is long range power correlated, then F q (s) vs s for a specific q, will display power-law behavior as per the equation [ 4]. for a multifractal data series is associated with the classical multifractal scaling exponent τ (q) according to the equation [ 5].…”

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confidence: 99%

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Study of Di-Muon Production Process in pp Collision in CMS Data from Symmetry Scaling Perspective

Bhaduri

Ghosh

2020

Advances in High Energy Physics

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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confidence: 99%

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Study of Di-Muon Production Process in pp Collision in CMS Data from Symmetry Scaling Perspective

Bhaduri

Ghosh

2020

Advances in High Energy Physics

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“…This method has also been implemented widely over time series with a finite number of data points and even with 400 data points [73], and has accomplished reliable result in different areas of science. Studies had been conducted in the area of the multiplicity fluctuation process in nucleus-nucleus and hadron-nucleus interactions, applying this Visibility Graph methodology in a few recent works [74][75][76][77][78][79][80][81][82][83]. Pb-Pb VSD masterclass data at 2.76 TeV per nucleon pair from ALICE Collaboration [84] was used for scaling analysis of the pseudorapidity space, using both the method of complex-network-based Visibility Graph and MF-DFA [48,49], to study the prospective phase transition and the signature of quark-gluon plasma (QGP) in the work [82].…”

Section: Introductionmentioning

confidence: 99%

Searching for Supersymmetry at LHC Using the Complex-Network-Based Method of the Three-Dimensional Visibility-Graph

Bhaduri¹,

Bhaduri²

2020

Physics

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For the last several decades, there has been tremendous interest in search for Supersymmetry (SUSY) in the area of high energy physics. At Large Hadron Collider (LHC), there have been continuous searches for SUSY for prompt and non-prompt, for particle R-parity conserving and R-parity violating generation and decays. The limits obtained from these experiments and analyses for detection of the signatures of supersymmetric particles (LSP), revealed greater possibilities of such experiments in the collider. However, these signatures are usually derived under the assumption of bit optimistic conditions of the decaying process of sparticles to the final states. Moreover, SUSY might have been in a disguised state at lower mass-scales as a result of difficult and challenging mass spectra and mixed modes of decays. In this investigation, a novel method of 3-dimensional (3D) Visibility-Graph Analysis is proposed. This is an extension of Visibility Graph analysis of data series to perform the scaling analysis for 3D space. The experimental data spaces analyzed are made up of the component-space (in the X,Y and Z coordinates) of transverse momentum (pT) values taken out from 4-momenta of the signatures of the final state of the pair of mega-jets extracted from the multiJet primary pp collision data from Run B of 2010 at 7 TeV which was used for the search of SUSY using razor filter. The symmetry scaling and the inherent scaling behavior, scale-freeness of multi-particle production process is studied in terms of 3D Power-of-Scale-freeness-of-Visibility-Graph (3D-PSVG) extracted from the 3D Visibility Graphs constructed out of the experimental data spaces. The signature of SUSY may be identified by analyzing the scaling behavior and long-range correlation inherent in the 3D space made up of signatures of final state of multi-particles produced in the pp collision at 7 TeV, for the analysis of SUSY, which the conventional method of analyzing the spectrum of invariant mass or pT may miss.

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“…In view of the above, recently, using Visibility Graph method, we have analysed multiplicity fluctuation in hadron-nucleus and nucleus-nucleus interactions [26,27,28,22,29,30,31,32]. In our latest work [33,34], we have done the scaling analysis of the pseudorapidity data extracted from Pb-Pb VSD masterclass data sample at 2.76T eV per nucleon pair from ALICE Collaboration [35] using the method of Visibility Graph from the perspective of complex network and the multifractal methodologies, to probe for phase transition and capture the signature of QGP.…”

Section: Introductionmentioning

confidence: 99%

Symmetry-Scaling Based Complex Network Approach to Explore Exotic Hadronic States in High-Energy Collision

Bhaduri

Ghosh

2019

Phys. Part. Nuclei Lett.

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Conventionally invariant mass or transverse momentum techniques have been used to probe for any formation of some exotic or unusual resonance states in high energy collision. In this work, we have applied symmetry scaling based complex network approach to study exotic resonance/hadronic states utilizing the clustering coefficients and associated scaling parameter extracted with the complex network based technique of Visibility Graph. We have analyzed the data of Pb-Pb collision data sample at 2.76T eV from ALICE Collaboration and analyzed different patterns of symmetry scaling, scale-freeness, correlation and clustering among the produced particles. This is a chaos-based complex network technique where simple parameters like Average Clustering Coefficient and Power of Scale-freeness of Visibility Graph(PSVG) may hint at formation of some exotic or unusual resonance states without using conventional methods. From this experiment we may infer that highest range of Average clustering coefficient, might be the resonance states/clusters from where the hadronic decay might have occurred and few clusters with highest value of this parameter may indicate that those clusters may be the ancestors of some strange particles. There have also been extensive study of dilepton production since the study of lepton pair generation in Drell-Yan processes is immensely important as these processes enable us to validate the Standard Model-SM predictions for the fundamental particles interaction at the new energy region and also to probe for new physics beyond SM. Hence we have applied the same methodology and extracted the same parameters for p-p collision data at 8TeV from CMS, to detect possible resonance states eventually generating lepton pairs.

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Pion Fluctuation Study in Pb–Pb Collision at 2.76 TeV per Nucleon Pair from ALICE Experiment with Chaos and Complex Network-Based Methods

Cited by 6 publications

References 62 publications

Study of Di-Muon Production Process in pp Collision in CMS Data from Symmetry Scaling Perspective

Study of Di-Muon Production Process in pp Collision in CMS Data from Symmetry Scaling Perspective

Searching for Supersymmetry at LHC Using the Complex-Network-Based Method of the Three-Dimensional Visibility-Graph

Symmetry-Scaling Based Complex Network Approach to Explore Exotic Hadronic States in High-Energy Collision

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