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



Adam, J, Adamova, D, Aggarwal, MM, Rinella, G Aglieri, Agnello, M, Agrawal, N, Ahammed, Z, Ahmad, S, Ahn, SU, Aiola, S
et al (show 1007 more authors) (2017) Insight into particle production mechanisms via angular correlations of identified particles in pp collisions at √s=7 TeV. EUROPEAN PHYSICAL JOURNAL C, 77 (8). 569-.

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Abstract

Two-particle angular correlations were measured in pp collisions at 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.

Item Type: Article
Depositing User: Symplectic Admin
Date Deposited: 08 Sep 2017 07:47
Last Modified: 14 Mar 2024 21:30
DOI: 10.1140/epjc/s10052-017-5129-6
Related URLs:
URI: https://livrepository.liverpool.ac.uk/id/eprint/3009328