Two-particle Bose–Einstein correlations in pp collisions at (Formula presented.) 0.9 and 7 TeV measured with the ATLAS detector

The ATLAS Collaboration

Research output: Contribution to journalArticle

28 Citations (Scopus)

Abstract

The paper presents studies of Bose– Einstein Correlations (BEC) for pairs of like-sign charged particles measured in the kinematic range (Formula presented.) in proton collisions at centre-of-mass energies of 0.9 and 7 TeV with the ATLAS detector at the CERN Large Hadron Collider. The integrated luminosities are approximately 7 (Formula presented.) for 0.9 TeV, 7 TeV minimum-bias and 7 TeV high-multiplicity data samples, respectively. The multiplicity dependence of the BEC parameters characterizing the correlation strength and the correlation source size are investigated for charged-particle multiplicities of up to 240. A saturation effect in the multiplicity dependence of the correlation source size parameter is observed using the high-multiplicity 7 TeV data sample. The dependence of the BEC parameters on the average transverse momentum of the particle pair is also investigated.

Original languageEnglish (US)
Article number466
Pages (from-to)1-25
Number of pages25
JournalEuropean Physical Journal C
Volume75
Issue number10
DOIs
StatePublished - Oct 1 2015

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Charged particles
Detectors
collisions
detectors
Colliding beam accelerators
Luminance
Momentum
Protons
Kinematics
charged particles
transverse momentum
center of mass
kinematics
luminosity
saturation
protons

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)
  • Engineering (miscellaneous)

Cite this

Two-particle Bose–Einstein correlations in pp collisions at (Formula presented.) 0.9 and 7 TeV measured with the ATLAS detector. / The ATLAS Collaboration.

In: European Physical Journal C, Vol. 75, No. 10, 466, 01.10.2015, p. 1-25.

Research output: Contribution to journalArticle

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abstract = "The paper presents studies of Bose– Einstein Correlations (BEC) for pairs of like-sign charged particles measured in the kinematic range (Formula presented.) in proton collisions at centre-of-mass energies of 0.9 and 7 TeV with the ATLAS detector at the CERN Large Hadron Collider. The integrated luminosities are approximately 7 (Formula presented.) for 0.9 TeV, 7 TeV minimum-bias and 7 TeV high-multiplicity data samples, respectively. The multiplicity dependence of the BEC parameters characterizing the correlation strength and the correlation source size are investigated for charged-particle multiplicities of up to 240. A saturation effect in the multiplicity dependence of the correlation source size parameter is observed using the high-multiplicity 7 TeV data sample. The dependence of the BEC parameters on the average transverse momentum of the particle pair is also investigated.",
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AB - The paper presents studies of Bose– Einstein Correlations (BEC) for pairs of like-sign charged particles measured in the kinematic range (Formula presented.) in proton collisions at centre-of-mass energies of 0.9 and 7 TeV with the ATLAS detector at the CERN Large Hadron Collider. The integrated luminosities are approximately 7 (Formula presented.) for 0.9 TeV, 7 TeV minimum-bias and 7 TeV high-multiplicity data samples, respectively. The multiplicity dependence of the BEC parameters characterizing the correlation strength and the correlation source size are investigated for charged-particle multiplicities of up to 240. A saturation effect in the multiplicity dependence of the correlation source size parameter is observed using the high-multiplicity 7 TeV data sample. The dependence of the BEC parameters on the average transverse momentum of the particle pair is also investigated.

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