The energy dependence of angular correlations inferred from mean fluctuation scale dependence in heavy ion collisions at the SPS and RHIC

J Adams; Lee Barnby; CO Blyth; L Gaillard; Peter Jones; John Nelson; AR Timmins

doi:10.1088/0954-3899/34/3/004

The energy dependence of angular correlations inferred from mean fluctuation scale dependence in heavy ion collisions at the SPS and RHIC

J Adams, Lee Barnby, CO Blyth, L Gaillard, Peter Jones, John Nelson, AR Timmins

Physics and Astronomy

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Abstract

We present the first study of the energy dependence of pt angular correlations inferred from event-wisemean transversemomentum <p(t)> fluctuations in heavy ion collisions. We compare our large-acceptance measurements at CM energies root s(NN) = 19.6, 62.4, 130 and 200 GeV to SPS measurements at 12.3 and 17.3 GeV. p(t) angular correlation structure suggests that the principal source of pt correlations and fluctuations is minijets (minimum-bias parton fragments). We observe a dramatic increase in correlations and fluctuations from SPS to RHIC energies, increasing linearly with 1n root s(NN) from the onset of observable jet-related <p(t)> fluctuations near 10 GeV.

Original language	English
Pages (from-to)	451-465
Number of pages	15
Journal	Journal of Physics G: Nuclear and Particle Physics
Volume	34
Issue number	3
Early online date	18 Jan 2007
DOIs	https://doi.org/10.1088/0954-3899/34/3/004
Publication status	Published - 1 Mar 2007

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title = "The energy dependence of angular correlations inferred from mean fluctuation scale dependence in heavy ion collisions at the SPS and RHIC",

abstract = "We present the first study of the energy dependence of pt angular correlations inferred from event-wisemean transversemomentum fluctuations in heavy ion collisions. We compare our large-acceptance measurements at CM energies root s(NN) = 19.6, 62.4, 130 and 200 GeV to SPS measurements at 12.3 and 17.3 GeV. p(t) angular correlation structure suggests that the principal source of pt correlations and fluctuations is minijets (minimum-bias parton fragments). We observe a dramatic increase in correlations and fluctuations from SPS to RHIC energies, increasing linearly with 1n root s(NN) from the onset of observable jet-related fluctuations near 10 GeV.",

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T1 - The energy dependence of angular correlations inferred from mean fluctuation scale dependence in heavy ion collisions at the SPS and RHIC

AU - Adams, J

AU - Barnby, Lee

AU - Blyth, CO

AU - Gaillard, L

AU - Jones, Peter

AU - Nelson, John

AU - Timmins, AR

PY - 2007/3/1

Y1 - 2007/3/1

N2 - We present the first study of the energy dependence of pt angular correlations inferred from event-wisemean transversemomentum fluctuations in heavy ion collisions. We compare our large-acceptance measurements at CM energies root s(NN) = 19.6, 62.4, 130 and 200 GeV to SPS measurements at 12.3 and 17.3 GeV. p(t) angular correlation structure suggests that the principal source of pt correlations and fluctuations is minijets (minimum-bias parton fragments). We observe a dramatic increase in correlations and fluctuations from SPS to RHIC energies, increasing linearly with 1n root s(NN) from the onset of observable jet-related fluctuations near 10 GeV.

AB - We present the first study of the energy dependence of pt angular correlations inferred from event-wisemean transversemomentum fluctuations in heavy ion collisions. We compare our large-acceptance measurements at CM energies root s(NN) = 19.6, 62.4, 130 and 200 GeV to SPS measurements at 12.3 and 17.3 GeV. p(t) angular correlation structure suggests that the principal source of pt correlations and fluctuations is minijets (minimum-bias parton fragments). We observe a dramatic increase in correlations and fluctuations from SPS to RHIC energies, increasing linearly with 1n root s(NN) from the onset of observable jet-related fluctuations near 10 GeV.

U2 - 10.1088/0954-3899/34/3/004

DO - 10.1088/0954-3899/34/3/004

M3 - Article

SN - 1361-6471

VL - 34

SP - 451

EP - 465

JO - Journal of Physics G: Nuclear and Particle Physics

JF - Journal of Physics G: Nuclear and Particle Physics

IS - 3

ER -

The energy dependence of angular correlations inferred from mean fluctuation scale dependence in heavy ion collisions at the SPS and RHIC

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