Study of ordered hadron chains with the ATLAS detector

ATLAS Collaboration

doi:10.1103/PhysRevD.96.092008

Study of ordered hadron chains with the ATLAS detector

ATLAS Collaboration

Physics and Astronomy

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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 inverse microbarns of minimum bias events collected with proton-proton collisions at a center-of-mass energy of 7 TeV in the early low-luminosity data taking with the ATLAS detector at the LHC.

Original language	English
Article number	092008
Journal	Physical Review D
Volume	96
DOIs	https://doi.org/10.1103/PhysRevD.96.092008
Publication status	Published - 29 Nov 2017

Bibliographical note

45 pages in total, author list starting page 29, 14 figures, 5 tables, published in Phys. Rev. D. All figures including auxiliary figures are available at https://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/STDM-2014-08/

Keywords

hep-ex

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10.1103/PhysRevD.96.092008Licence: Creative Commons: Attribution (CC BY)

Aaboud_et_al_Study_of_ordered_hadron_chains_Physical_Review_D_2018
Checked for eligibility 05/12/2018 https://doi.org/10.1103/PhysRevD.96.092008
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https://journals.aps.org/prd/abstract/10.1103/PhysRevD.96.092008Licence: Creative Commons: Attribution (CC BY)

Cite this

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title = "Study of ordered hadron chains with the ATLAS detector",

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 inverse microbarns of minimum bias events collected with proton-proton collisions at a center-of-mass energy of 7 TeV in the early low-luminosity data taking with the ATLAS detector at the LHC. ",

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N2 - 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 inverse microbarns of minimum bias events collected with proton-proton collisions at a center-of-mass energy of 7 TeV in the early low-luminosity data taking with the ATLAS detector at the LHC.

AB - 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 inverse microbarns of minimum bias events collected with proton-proton collisions at a center-of-mass energy of 7 TeV in the early low-luminosity data taking with the ATLAS detector at the LHC.

KW - hep-ex

U2 - 10.1103/PhysRevD.96.092008

DO - 10.1103/PhysRevD.96.092008

M3 - Article

SN - 1550-7998

VL - 96

JO - Physical Review D

JF - Physical Review D

M1 - 092008

ER -

Study of ordered hadron chains with the ATLAS detector

Abstract

Bibliographical note

Keywords

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