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

    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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    title = "Two-particle Bose–Einstein correlations in pp collisions at (Formula presented.) 0.9 and 7 TeV measured with the ATLAS detector",
    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.",
    author = "{ATLAS Collaboration}, Collaboration and G. Aad and B. Abbott and J. Abdallah and {Abdel Khalek}, S. and O. Abdinov and R. Aben and B. Abi and M. Abolins and AbouZeid, {O. S.} and H. Abramowicz and H. Abreu and R. Abreu and Y. Abulaiti and Acharya, {B. S.} and L. Adamczyk and Adams, {D. L.} and J. Adelman and S. Adomeit and T. Adye and T. Agatonovic-Jovin and Aguilar-Saavedra, {J. A.} and M. Agustoni and Ahlen, {S. P.} and F. Ahmadov and G. Aielli and H. Akerstedt and {\AA}kesson, {T. P A} and G. Akimoto and Akimov, {A. V.} and Alberghi, {G. L.} and J. Albert and S. Albrand and {Alconada Verzini}, {M. J.} and M. Aleksa and Aleksandrov, {I. N.} and C. Alexa and G. Alexander and G. Alexandre and T. Alexopoulos and M. Alhroob and G. Alimonti and L. Alio and J. Alison and Allbrooke, {B. M M} and Allison, {L. J.} and Allport, {P. P.} and K. Cranmer and A. Haas and Mincer, {A. I.} and P. Nemethy",
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    AU - The ATLAS collaboration

    AU - Aad, G.

    AU - Abbott, B.

    AU - Abdallah, J.

    AU - Abdel Khalek, S.

    AU - Abdinov, O.

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    AU - Akimov, A. V.

    AU - Alberghi, G. L.

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    AU - Albrand, S.

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    AU - Allbrooke, B. M M

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    AU - Allport, P. P.

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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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