Insight into particle production mechanisms via angular correlations of identified particles in pp collisions at root s=7 TeV

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Adam , J , Brucken , E J , Chang , B , Kim , D J , Litichevskyi , V , Mieskolainen , M M , Orava , R , Rak , J , Räsänen , S S , Snellman , T W , Trzaska , W H , Viinikainen , J & The ALICE Collaboration 2017 , ' Insight into particle production mechanisms via angular correlations of identified particles in pp collisions at root s=7 TeV ' , European Physical Journal C. Particles and Fields , vol. 77 , no. 8 , 569 . https://doi.org/10.1140/epjc/s10052-017-5129-6

Title: Insight into particle production mechanisms via angular correlations of identified particles in pp collisions at root s=7 TeV
Author: Adam, J.; Brucken, E. J.; Chang, B.; Kim, D. J.; Litichevskyi, V.; Mieskolainen, M. M.; Orava, R.; Rak, J.; Räsänen, S. S.; Snellman, T. W.; Trzaska, W. H.; Viinikainen, J.; The ALICE collaboration
Contributor organization: Helsinki Institute of Physics
Date: 2017-08-24
Language: eng
Number of pages: 17
Belongs to series: European Physical Journal C. Particles and Fields
ISSN: 1434-6044
DOI: https://doi.org/10.1140/epjc/s10052-017-5129-6
URI: http://hdl.handle.net/10138/224314
Abstract: Two-particle angular correlations were measured in pp collisions at root s = 7 TeV for pions, kaons, protons, and lambdas, for all particle/anti-particle combinations in the pair. Data for mesons exhibit an expected peak dominated by effects associated with mini-jets and are well reproduced by general purpose Monte Carlo generators. However, for baryon-baryon and anti-baryon-anti-baryon pairs, where both particles have the same baryon number, a near-side anti-correlation structure is observed instead of a peak. This effect is interpreted in the context of baryon production mechanisms in the fragmentation process. It currently presents a challenge to Monte Carlo models and its origin remains an open question.
Description: This article has an erratum: Doi: 10.1140/epjc/s10052-019-7398-8
Subject: PB COLLISIONS
ROOT-S(NN)=5.02 TEV
LONG-RANGE
MULTIPLICITY DEPENDENCE
PROTON
SIDE
KAON
PION
LHC
114 Physical sciences
Peer reviewed: Yes
Rights: cc_by
Usage restriction: openAccess
Self-archived version: publishedVersion


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