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Charged particle production in $p p$ $p p$ collisions at $\sqrt{s} = 8$ $\sqrt{s} = 8$ , 7 and 2.76 TeV at the LHC-a case study

R. Aggarwal

Department of Technology, Savitribai Phule Pune University, Pune-411 007, India

E-mail Address: ritu.aggarwal1@gmail.com

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and

M. Kaur

Physics Department, Panjab University, Chandigarh, India

E-mail Address: manjit@pu.ac.in

Corresponding author.

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https://doi.org/10.1142/S0218301321500051Cited by:2 (Source: Crossref)

Abstract

We analyze the charged-particle multiplicity distributions measured by the ALICE experiment, over a wide pseudorapidity range, for $p p$ $p p$ collisions at $\sqrt{s} = 8$ $\sqrt{s} = 8$ , 7 and 2.76 TeV at the LHC. The analysis offers an understanding of particle production in high energy collisions in the purview of a new distribution, the shifted Gompertz distribution. Data are compared with the distribution and moments of the distributions are calculated. A modified version of the distribution is also proposed and used to improve the description of the data consisting of two different event classes: the inelastic and the nonsingle diffractive and their subsets in different windows of pseudorapidity, $η$ $η$ . The distribution used to analyze the data has a wide range of applicability to processes in different fields and complements the analysis done by the ALICE collaboration in terms of various LHC event generators and IP-Glasma calculations.

Keywords:

PACS: 5.90.+m, 12.40.Fe, 13.66.Bc

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