Clan structure analysis and new physics signals in<i>pp</i>collisions at LHC

Giovannini, Alberto; Ugoccioni, R.

doi:10.1088/1742-6596/5/1/017

Cited by 3 publications

(1 citation statement)

References 28 publications

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“…In anticipation for the upcoming operation of LHC in 2008, multiparticle production has again become one of major discussion in high energy physics recently [1,2]. In the previous studies, negative binomial distribution (NBD), which Giovannini has shown as a solution to the stochastic branching equation [3] that governs the dynamics of multiparticle production, is usually used to describe the experimental data.…”

Section: Introductionmentioning

confidence: 99%

Lee-Yang circle analysis of e + e − and $p\overline{p}$ generalized multiplicity distribution

Dewanto¹,

Chan²,

Oh³

et al. 2008

Eur. Phys. J. C

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We study the evolution of Lee-Yang zeros structure of generalized multiplicity distribution (GMD) in high energy collision. Starting our study with electron-positron e + e − scattering data, we extend the study by Chan and Chew (Z. Phys. C 55:503, 1992) on TASSO and AMY multiplicity data for √ s = 14, 22, 34.8, 43.6 and 57 GeV to the ones from DELPHI and OPAL Collaboration for √ s = 91, 133, 161, 172, 183 and 189 GeV. We compare the results with the Lee-Yang structure for proton-antiproton pp at √ s = 200, 546 and 900 GeV from UA5 Collaboration. Our preliminary result shows that there is indeed a change in the shape and size of the Lee-Yang zeros with increasing energy, accompanied by the development of the so-called "ear"-like structure in the Lee-Yang plot. We expect that the development of this "ear"-like structure is related to the "shoulder" structure in the multiplicity data, which further indicates an ongoing phase transition from soft to semihard scattering. We also extend our prediction to LHC's √ s = 14 TeV. Insert your abstract here.

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Section: Introductionmentioning

confidence: 99%

Lee-Yang circle analysis of e + e − and $p\overline{p}$ generalized multiplicity distribution

Dewanto¹,

Chan²,

Oh³

et al. 2008

Eur. Phys. J. C

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Search for nonextensivity in electron-proton interactions at s=300 GeV

Sarkar,

Aggarwal,

Kaur

2024

Phys. Rev. D

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Study of canonical entropy in electron-proton interactions at s=300 GeV is presented. The precision data collected by the H1 experiment at the HERA in different ranges of invariant hadronic mass W and the squared four-momentum exchange Q2 in electron-proton (ep) interactions have been analyzed in the ensemble theory approach. The canonical partition function relates to the multiplicity distribution which is often studied in collider experiments. We use the canonical ensemble partition function to explore the dynamics of hadron production in ep interactions by devising different methods to find the entropic parameter and the collision temperature. The inverse slope of the transverse momentum spectrum of produced hadrons also relates to the temperature. In the recent past, the CMS, ATLAS, and ALICE experiments at the LHC have studied the charged hadron transverse momentum and particle distributions in proton-proton and proton-nucleus interactions by using the Tsallis function within this approach. A detailed investigation into the role of the system volume and relation amongst different dynamical parameters reveals interesting results. Published by the American Physical Society 2024

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Lee-Yang Circle Analysis for Generalized Multiplicity Distribution

Dewanto

Chan

2007

Int. J. Mod. Phys. E

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In this work, we study the Lee–Yang solutions of multiplicty distribution (MD) generating function for SPS energies range data. In particular, weighted generalized multiplicity distribution (GMD) function is used to describe the existing shoulder structure in the experimental data. Our study suggest that the existence of the shoulder structure in the KNO plot is accompanied by the forming of an ear structure in the Lee–Yang zeros plot. Prediction for the LHC energy range is also made.

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Clan structure analysis and new physics signals inppcollisions at LHC

Cited by 3 publications

References 28 publications

Lee-Yang circle analysis of e + e − and $p\overline{p}$ generalized multiplicity distribution

Lee-Yang circle analysis of e + e − and $p\overline{p}$ generalized multiplicity distribution

Search for nonextensivity in electron-proton interactions at s=300 GeV

Lee-Yang Circle Analysis for Generalized Multiplicity Distribution

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