Studies of di-jet survival and surface emission bias in Au+Au collisions via angular correlations with respect to back-to-back leading hadrons

The STAR collaboration
Phys.Rev.C 83 (2011) 061901, 2011.

Abstract
We report first results from an analysis based on a new multi-hadron correlation technique, exploring jet-medium interactions and di-jet surface emission bias at RHIC. Pairs of back-to-back high transverse momentum hadrons are used for triggers to study associated hadron distributions. In contrast with two- and three-particle correlations with a single trigger with similar kinematic selections, the associated hadron distribution of both trigger sides reveals no modification in either relative pseudo-rapidity or relative azimuthal angle from d+Au to central Au+Au collisions. We determine associated hadron yields and spectra as well as production rates for such correlated back-to-back triggers to gain additional insights on medium properties.

  • Table 1a

    Data from Figure 1a

    10.17182/hepdata.102950.v1/t1

    Projections of 2+1 correlation on $\Delta\phi$ for 200 GeV top 12% central-triggered and mid-central Au+Au and minimum bias d+Au data.

  • Table 1b

    Data from Figure 1b

    10.17182/hepdata.102950.v1/t2

    Projections of 2+1 correlation on $\Delta\eta$ for 200 GeV top 12% central-triggered and mid-central Au+Au and minimum bias d+Au data.

  • Table 1c

    Data from Figure 1c

    10.17182/hepdata.102950.v1/t3

    Transverse momentum distributions per trigger pair for the same- and away-side hadrons associated with di-jet triggers (|$\Delta\phi$| < 0.5, |$\Delta\eta$|...

  • Table 2a

    Data from Figure 2a

    10.17182/hepdata.102950.v1/t4

    Relative production rates for jets and di-jets in Au+Au collisions of different centralities with respect to d+Au data.

  • Table 2b

    Data from Figure 2b

    10.17182/hepdata.102950.v1/t5

    Calculations of the Glauber-based core/corona model that accommodates inclusive hadron suppression and single jet production rate results.

  • Table 2c

    Model predictions from Figure 2c

    10.17182/hepdata.102950.v1/t6

    Conditional di-jet survival probability in Au+Au data compared to d+Au reference.

  • Table 2d

    Data from Figure 2c

    10.17182/hepdata.102950.v1/t7

    Conditional di-jet survival probability in Au+Au data compared to d+Au reference.

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