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

The collaboration
Phys.Lett.B 751 (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".