Study of ordered hadron chains with the ATLAS detector

Barton, Adam Edward and Beattie, Michael and Bertram, Iain Alexander and Borissov, Guennadi and Bouhova-Thacker, Evelina Vassileva and Fox, Harald and Grimm, Kathryn Ann Tschann and Henderson, Robert Charles William and Hughes, Gareth and Jones, Roger William Lewis and Kartvelishvili, Vakhtang and Long, Robin Eamonn and Love, Peter Allan and Muenstermann, Daniel Matthias Alfred and Parker, Adam Jackson and Skinner, Malcolm and Smizanska, Maria and Walder, James William and Wharton, Andy and Whitmore, Ben (2017) Study of ordered hadron chains with the ATLAS detector. Physical Review D, 96 (9). ISSN 1550-7998

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Abstract

The analysis of the momentum difference between charged hadrons in high-energy proton-proton collisions is performed in order to study coherent particle production. The observed correlation pattern agrees with a model of a helical QCD string fragmenting into a chain of ground-state hadrons. A threshold momentum difference in the production of adjacent pairs of charged hadrons is observed, in agreement with model predictions. The presence of low-mass hadron chains also explains the emergence of charge-combination-dependent two-particle correlations commonly attributed to Bose-Einstein interference. The data sample consists of 190  μb−1 of minimum-bias events collected with proton-proton collisions at a center-of-mass energy √s=7  TeV in the early low-luminosity data taking with the ATLAS detector at the LHC.

Item Type: Journal Article
Journal or Publication Title: Physical Review D
Additional Information: © 2017 CERN, for the ATLAS Collaboration Funded by SCOAP3
Departments: Faculty of Science and Technology > Physics
ID Code: 124069
Deposited By: ep_importer_pure
Deposited On: 15 Mar 2018 11:16
Refereed?: Yes
Published?: Published
Last Modified: 14 Feb 2020 05:05
URI: https://eprints.lancs.ac.uk/id/eprint/124069

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