Description of high-energy pp collisions using Tsallis thermodynamics: Transverse momentum and rapidity distributions

A systematic analysis of transverse momentum and rapidity distributions measured in high-energy proton-proton (pp) collisions for energies ranging from 53 GeV to 7 TeV using Tsallis thermodynamics is presented. The reasonable description of all transverse momentum spectra obtained in earlier analyse...

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Published in:Physical review. D, Particles, fields, gravitation, and cosmology Particles, fields, gravitation, and cosmology, 2015-03, Vol.91 (5)
Main Authors: Marques, L, Cleymans, J, Deppman, A
Format: Article
Language:English
Subjects:
Beams (radiation)
Collisions
Cosmology
Fireballs
Spectra
Spreads
Thermodynamics
Transverse momentum
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Cleymans, J
Deppman, A
description A systematic analysis of transverse momentum and rapidity distributions measured in high-energy proton-proton (pp) collisions for energies ranging from 53 GeV to 7 TeV using Tsallis thermodynamics is presented. The reasonable description of all transverse momentum spectra obtained in earlier analyses is confirmed and extended. All energies can be described by a single Tsallis temperature of 68 + or - 5 MeV at all beam energies and particle types investigated (43 in total). The value of the entropic index, q, shows a wider spread but is always close to q approximately 1.146. These values are then used to describe the rapidity distributions using a superposition of two Tsallis fireballs along the rapidity axis. It is concluded that the hadronic system created in high-energy pp collisions between 53 GeV and 7 TeV can be seen as obeying Tsallis thermodynamics.
doi_str_mv 10.1103/PhysRevD.91.054025
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source American Physical Society:Jisc Collections:APS Read and Publish 2023-2025 (reading list)
subjects Beams (radiation)
Collisions
Cosmology
Fireballs
Spectra
Spreads
Thermodynamics
Transverse momentum
title Description of high-energy pp collisions using Tsallis thermodynamics: Transverse momentum and rapidity distributions
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