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Di-hadron correlations with identified leading hadrons in 200 GeV Au + Au and d + Au collisions at STAR

The STAR collaboration
Phys.Lett. B751 (2015) 233-240, 2015

Abstract (data abstract)
BNL-RHIC. The STAR collaboration presents for the first time two-dimensional di-hadron correlations with identified leading hadrons in 200 GeV central Au+Au and minimum-bias d+Au collisions to explore hadronization mechanisms in the quark gluon plasma. The enhancement of the jet-like yield for leading pions in Au+Au data with respect to the d+Au reference and the absence of such an enhancement for leading non-pions (protons and kaons) are discussed within the context of a quark recombination scenario. The correlated yield at large angles, specifically in the ridge region, is found to be significantly higher for leading non-pions than pions. The consistencies of the constituent quark scaling, azimuthal harmonic model and a mini-jet modification model description of the data are tested, providing further constraints on hadronization.

  • Table 1

    Data from Figure 1 - dAuInclusiveRebin

    10.17182/hepdata.73458.v1/t1

    Two-dimensional $\Delta\phi$ vs. $\Delta\eta$ correlation functions for charged hadron triggers from minimum-bias d+Au data at 200 GeV. All trigger and...

  • Table 2

    Data from Figure 1 - AuAuInclusiveRebin

    10.17182/hepdata.73458.v1/t2

    Two-dimensional $\Delta\phi$ vs. $\Delta\eta$ correlation functions for charged hadron triggers from 0-10% most-central Au+Au data at 200 GeV. All trigger...

  • Table 3

    Data from Figure 1 - dAuNonPionsRebin

    10.17182/hepdata.73458.v1/t3

    Two-dimensional $\Delta\phi$ vs. $\Delta\eta$ correlation functions for non-pion triggers from minimum-bias d+Au data at 200 GeV. All trigger and associated...

  • Table 4

    Data from Figure 1 - AuAuNonPionsRebin

    10.17182/hepdata.73458.v1/t4

    Two-dimensional $\Delta\phi$ vs. $\Delta\eta$ correlation functions for non-pion triggers from 0-10% most-central Au+Au data at 200 GeV. All trigger and...

  • Table 5

    Data from Figure 1 - dAuPionsRebin

    10.17182/hepdata.73458.v1/t5

    Two-dimensional $\Delta\phi$ vs. $\Delta\eta$ correlation functions for pion triggers from minimum-bias d+Au data at 200 GeV. All trigger and associated...

  • Table 6

    Data from Figure 1

    10.17182/hepdata.73458.v1/t6

    Two-dimensional $\Delta\phi$ vs. $\Delta\eta$ correlation functions for pion triggers from 0-10% most-central Au+Au data at 200 GeV. All trigger and...

  • Table 7

    Data from Figure 2

    10.17182/hepdata.73458.v1/t7

    The $\Delta\phi$ projections of the pure-cone correlations for |$\Delta\phi$| < $\pi$/4 for pion triggers.

  • Table 8

    Data from Figure 2

    10.17182/hepdata.73458.v1/t8

    The $\Delta\eta$ projections of the pure-cone correlations for |$\Delta\eta$| < 0.78 for pion triggers.

  • Table 9

    Data from Figure 2

    10.17182/hepdata.73458.v1/t9

    The $\Delta\phi$ projections of the pure-cone correlations for |$\Delta\phi$| < $\pi$/4 non-pion triggers.

  • Table 10

    Data from Figure 2

    10.17182/hepdata.73458.v1/t10

    The $\Delta\eta$ projections of the pure-cone correlations for |$\Delta\eta$| < 0.78 non-pion triggers.

  • Table 11

    Data from Figure 3a

    10.17182/hepdata.73458.v1/t11

    $\Delta\phi$ projections over |$\Delta\eta$| < 1.5 in 0-10% Au+Au and minimum-bias d+Au data at 200 GeV after subtracting the jet-like...

  • Table 12

    Data from Figure 3b

    10.17182/hepdata.73458.v1/t12

    Extracted Fourier coefficients from fitting in $\pi$ 2 < $\Delta\phi$ < 3$\pi/2$ ) x (|$\Delta\eta$| < 1.5) (1.52 for d+Au),...

  • Table 13

    Data from 3b

    10.17182/hepdata.73458.v1/t13

    Extracted Fourier coefficients from fitting in $\pi$ 2 < $\Delta\phi$ < 3$\pi/2$ ) x (|$\Delta\eta$| < 1.5) (1.52 for d+Au),...

  • Table 14

    Data from 3c

    10.17182/hepdata.73458.v1/t14

    V3/V2 ratio for pion and non-pion triggers in Au+Au, and the extrapolated value for "pure protons".

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