Abstract (data abstract)

BNL-RHIC. Azimuthal angle ($\Delta\phi$) correlations are presented for a broad range of transverse momentum ($0.4 < p_T < 10$ GeV/$c$) and centrality (0-92\%) selections for charged hadrons from di-jets in Au+Au collisions at $\sqrt{s}_{NN}$ = 200 GeV. With increasing $p_T$, the away-side $\Delta\phi$ distribution evolves from a broad and relatively flat shape to a concave shape, then to a convex shape. Comparisons to p+p data suggest that the away-side distribution can be divided into a partially suppressed $\Delta\phi$ region centered at $\pi$, and an enhanced $\Delta\phi$ region centered at $\pi \pm 1.1$. The $p_T$ spectrum for the associated hadrons in the head region softens toward central collisions. The spectral slope for the shoulder region is independent of centrality and trigger $p_T$ . The properties of the near-side distributions are also modified relative to those in p+p collisions, reflected by the broadening of the jet shape in $\Delta\phi$ and $\Delta\eta$, and an enhancement of the per-trigger yield. However, these modifications seem to be limited to $p_T < 4$ GeV/$c$, above which both the hadron pair shape and per-trigger yield become similar to p+p collisions. These observations suggest that both the away- and near-side distributions contain a jet fragmentation component which dominates for $p_T > 5$ GeV and a medium-induced component which is important for $p_T < 4$ GeV/$c$. We also quantify the role of jets at intermediate and low $p_T$ through the yield of jet-induced pairs in comparison to binary scaled p+p pair yield. The yield of jet-induced pairs is suppressed at high pair proxy energy (sum of the $p_T$ magnitudes of the two hadrons) and is enhanced at low pair proxy energy. The former is consistent with jet quenching; the latter is consistent with the enhancement of soft hadron pairs due to transport of lost energy to lower $p_T$.

Figure 4, 2 - 3 GeV/$c$

10.17182/hepdata.96764.v1/t1

The 0-20% Au+Au jet-induced hadron-pair yield $\Delta\phi$ distributions calculated from the per-trigger yield using low-$p_T$ hadrons as triggers and high-$p_T$...
Figure 4, 3 - 4 GeV/$c$

10.17182/hepdata.96764.v1/t2

The 0-20% Au+Au jet-induced hadron-pair yield $\Delta\phi$ distributions calculated from the per-trigger yield using low-$p_T$ hadrons as triggers and high-$p_T$...
Figure 4, 4 - 5 GeV/$c$

10.17182/hepdata.96764.v1/t3

The 0-20% Au+Au jet-induced hadron-pair yield $\Delta\phi$ distributions calculated from the per-trigger yield using low-$p_T$ hadrons as triggers and high-$p_T$...
Figure 6, pp, part 2/2

10.17182/hepdata.96764.v1/t4

Per-trigger yield versus $\Delta\phi$ for various trigger and partner $p_T$ ($p^a_T \otimes p^b_T$), arranged by increasing pair proxy energy (sum...
Figure 6, pp, part 1/2

10.17182/hepdata.96764.v1/t5

Per-trigger yield versus $\Delta\phi$ for various trigger and partner $p_T$ ($p^a_T \otimes p^b_T$), arranged by increasing pair proxy energy (sum...
Figure 6, AuAu, part 1/2

10.17182/hepdata.96764.v1/t6

Per-trigger yield versus $\Delta\phi$ for various trigger and partner $p_T$ ($p^a_T \otimes p^b_T$), arranged by increasing pair proxy energy (sum...
Figure 6, AuAu, part 2/2

10.17182/hepdata.96764.v1/t7

Per-trigger yield versus $\Delta\phi$ for various trigger and partner $p_T$ ($p^a_T \otimes p^b_T$), arranged by increasing pair proxy energy (sum...
Figure 7, p + p collisions

10.17182/hepdata.96764.v1/t8

RHS versus $p^b_T$ for p + p collisions for four trigger selections.
Figure 7, Au + Au collisions

10.17182/hepdata.96764.v1/t9

RHS versus $p^b_T$ for Au + Au collisions for four trigger selections.
Figure 8

10.17182/hepdata.96764.v1/t10

RHS versus $N_{part}$ for 2-3 $\otimes$ 2-3 GeV/$c$. Shaded bars (brackets) represent $p_T$ -correlated uncertainties due to elliptic flow (ZYAM...
Figure 9

10.17182/hepdata.96764.v1/t11

Per-trigger yield $\Delta\phi$ distribution and corresponding fits for 2−3 $\otimes$ 2−3 GeV/c in 0-5% Au+Au collisions.
Figure 10

10.17182/hepdata.96764.v1/t12

a) D versus $N_{part}$ from FIT 1 and FIT2 for 2 - 3 GeV/$c$ bin. The error bars are the...
Figure 11, FIT1, 2-3

10.17182/hepdata.96764.v1/t13

Values of D determined from FIT1 as function of partner $p_T$ for 2-3 GeV/c $p_T$ range in 0-20% Au+Au.
Figure 11, FIT1, 3-4

10.17182/hepdata.96764.v1/t14

Values of D determined from FIT1 as function of partner $p_T$ for 3-4 GeV/c $p_T$ range in 0-20% Au+Au.
Figure 11, FIT1, 4-5

10.17182/hepdata.96764.v1/t15

Values of D determined from FIT1 as function of partner $p_T$ for 4-5 GeV/c $p_T$ range in 0-20% Au+Au.
Figure 11, FIT2, 2-3

10.17182/hepdata.96764.v1/t16

Values of D determined from FIT2 as function of partner $p_T$ for 2-3 GeV/c $p_T$ range in 0-20% Au+Au.
Figure 11, FIT2, 3-4

10.17182/hepdata.96764.v1/t17

Values of D determined from FIT2 as function of partner $p_T$ for 3-4 GeV/c $p_T$ range in 0-20% Au+Au.
Figure 11, FIT2, 4-5

10.17182/hepdata.96764.v1/t18

Values of D determined from FIT2 as function of partner $p_T$ for 4-5 GeV/c $p_T$ range in 0-20% Au+Au.
Figure 12, 0-20%, head

10.17182/hepdata.96764.v1/t19

Per-trigger yield as function of partner $p_T$ for the HR region for the 0-20% Au + Au collisions. Results for...
Figure 12, 20-40%, head

10.17182/hepdata.96764.v1/t20

Per-trigger yield as function of partner $p_T$ for the HR region for the 20-40% Au + Au collisions. Results for...
Figure 12, 40-60%, head

10.17182/hepdata.96764.v1/t21

Per-trigger yield as function of partner $p_T$ for the HR region for the 40-60% Au + Au collisions. Results for...
Figure 12, 60-92%, head

10.17182/hepdata.96764.v1/t22

Per-trigger yield as function of partner $p_T$ for the HR region for the 60-92% Au + Au collisions. Results for...
Figure 12, p + p, head

10.17182/hepdata.96764.v1/t23

Per-trigger yield as function of partner $p_T$ for the HR region for the p + p collisions. Results for four...
Figure 12, 0-20%, shoulder

10.17182/hepdata.96764.v1/t24

Per-trigger yield as function of partner $p_T$ for the SR region for the 0-20% Au + Au collisions. Results for...
Figure 12, 20-40%, shoulder

10.17182/hepdata.96764.v1/t25

Per-trigger yield as function of partner $p_T$ for the SR region for the 20-40% Au + Au collisions. Results for...
Figure 12, 40-60%, shoulder

10.17182/hepdata.96764.v1/t26

Per-trigger yield as function of partner $p_T$ for the SR region for the 40-60% Au + Au collisions. Results for...
Figure 12, 60-92%, shoulder

10.17182/hepdata.96764.v1/t27

Per-trigger yield as function of partner $p_T$ for the SR region for the 60-92% Au + Au collisions. Results for...
Figure 12, p + p, shoulder

10.17182/hepdata.96764.v1/t28

Per-trigger yield as function of partner $p_T$ for the SR region for the p + p collisions. Results for four...
Figure 16, Au + Au

10.17182/hepdata.96764.v1/t29

Near-side Gaussian widths versus partner $p_T$ for four trigger $p_T$ ranges for 0-20 % Au + Au.
Figure 16, p + p

10.17182/hepdata.96764.v1/t30

Near-side Gaussian widths versus partner $p_T$ for four trigger $p_T$ ranges for 0-20 % p + p.
Figure 17

10.17182/hepdata.96764.v1/t31

Near-side Gaussian widths versus $N_{part}$ for five successively increasing $p^a_T$ $\otimes$ $p^b_T$. The most left point in each panel represents...
Figure 18, p + p, near-side

10.17182/hepdata.96764.v1/t32

Near-side yield in $\lvert \Delta\phi \rvert$ < $\pi$/3 versus partner $p_T$ for four trigger $p_T$ selections for 0-20% p +...
Figure 18, 0-20%, near-side

10.17182/hepdata.96764.v1/t33

Near-side yield in $\lvert \Delta\phi \rvert$ < $\pi$/3 versus partner $p_T$ for four trigger $p_T$ selections for 0-20% Au +...
Figure 23, AuAu

10.17182/hepdata.96764.v1/t34

Per-trigger yield versus $\Delta\eta$ for 0-20% central Au + Au collisions. Results are shown for four $p^a_T \otimes p^b_T$ selections...
Figure 23, pp

10.17182/hepdata.96764.v1/t35

Per-trigger yield versus $\Delta\eta$ for 0-20% central p + p collisions. Results are shown for four $p^a_T \otimes p^b_T$ selections...
Figure 24, eta

10.17182/hepdata.96764.v1/t36

The projection of 2-D per-trigger yield in $\lvert \Delta\eta \rvert$ < 0.7 $\otimes$ $\lvert \Delta\phi \rvert$ < 0.7 and 0-20%...
Figure 24, phi

10.17182/hepdata.96764.v1/t37

The projection of 2-D per-trigger yield in $\lvert \Delta\eta \rvert$ < 0.7 $\otimes$ $\lvert \Delta\phi \rvert$ < 0.7 and 0-20%...
Figure 25, head

10.17182/hepdata.96764.v1/t38

Truncated mean $p_T$, $\langle p_T \rangle$, in 1 <pbT < 5 GeV/c versus $N_{part}$ for the head region for Au...
Figure 25, away-side shoulder

10.17182/hepdata.96764.v1/t39

Truncated mean $p_T$, $\langle p_T \rangle$, in 1 <pbT < 5 GeV/c versus $N_{part}$ for the away-side shoulder region for...
Figure 25, near-side

10.17182/hepdata.96764.v1/t40

Truncated mean $p_T$, $\langle p_T \rangle$, in 1 <pbT < 5 GeV/c versus $N_{part}$ for the near-side region for Au...
Figure 26, 3 − 4 GeV/c

10.17182/hepdata.96764.v1/t41

Truncated mean $p_T$, $\langle p_T \rangle$, calculated for five partner pT ranges in the HR. Results for triggers in 3...
Figure 26, 4 − 5 GeV/c

10.17182/hepdata.96764.v1/t42

Truncated mean $p_T$, $\langle p_T \rangle$, calculated for five partner pT ranges in the HR. Results for triggers in 4...
Figure 28

10.17182/hepdata.96764.v1/t43

The near-side pair suppression factor $J_{AA}$ in 0-20% Au + Au collisions as function of $p^b_T$ for various ranges of...
Figure 30, 20-40%

10.17182/hepdata.96764.v1/t44

The near-side $J_{AA}$ as function of $p^b_T$ and $p^{sum}_T$ for four $p^a_T$ bins and three centrality bins. Data for 20-40%.
Figure 30, 40-60%

10.17182/hepdata.96764.v1/t45

The near-side $J_{AA}$ as function of $p^b_T$ and $p^{sum}_T$ for four $p^a_T$ bins and three centrality bins. Data for 40-60%.
Figure 30, 60-92%

10.17182/hepdata.96764.v1/t46

The near-side $J_{AA}$ as function of $p^b_T$ and $p^{sum}_T$ for four $p^a_T$ bins and three centrality bins. Data for 60-92%.
Figure 31, 0-20%, away-side

10.17182/hepdata.96764.v1/t47

The pair suppression factor $J_{AA}$ for the away-side HR in 0-20% Au + Au collisions as function of $p_b^T$ for...
Figure 31, 20-40%, away-side

10.17182/hepdata.96764.v1/t48

The pair suppression factor $J_{AA}$ for the away-side HR in 20-40% Au + Au collisions as function of $p_b^T$ for...
Figure 31, 40-60%, away-side

10.17182/hepdata.96764.v1/t49

The pair suppression factor $J_{AA}$ for the away-side HR in 40-60% Au + Au collisions as function of $p_b^T$ for...
Figure 31, 60-92%, away-side

10.17182/hepdata.96764.v1/t50

The pair suppression factor $J_{AA}$ for the away-side HR in 60-92% Au + Au collisions as function of $p_b^T$ for...
Figure 36, Au + Au

10.17182/hepdata.96764.v1/t51

Per-trigger yield versus $\Delta\phi$ for successively increasing trigger and partner $p_T$ ($p^a_T \otimes p^b_T$) in 0-20 % Au + Au...
Figure 36, p + p

10.17182/hepdata.96764.v1/t52

Per-trigger yield versus $\Delta\phi$ for successively increasing trigger and partner $p_T$ ($p^a_T \otimes p^b_T$) in p + p collisions.
Figure 37, Au + Au

10.17182/hepdata.96764.v1/t53

Per-trigger yield versus $\Delta\phi$ for successively increasing trigger and partner $p_T$ ($p^a_T \otimes p^b_T$) in 20-40 % Au + Au...
Figure 37, p + p

10.17182/hepdata.96764.v1/t54

Per-trigger yield versus $\Delta\phi$ for successively increasing trigger and partner $p_T$ ($p^a_T \otimes p^b_T$) in p + p collisions.
Figure 38, Au + Au

10.17182/hepdata.96764.v1/t55

Per-trigger yield versus $\Delta\phi$ for successively increasing trigger and partner $p_T$ ($p^a_T \otimes p^b_T$) in 60-92 % Au + Au...
Figure 38, p + p

10.17182/hepdata.96764.v1/t56

Per-trigger yield versus $\Delta\phi$ for successively increasing trigger and partner $p_T$ ($p^a_T \otimes p^b_T$) in p + p collisions.

Figure 4, 2 - 3 GeV/$c$

Figure 4, 3 - 4 GeV/$c$

Figure 4, 4 - 5 GeV/$c$

Figure 6, pp, part 2/2

Figure 6, pp, part 1/2

Figure 6, AuAu, part 1/2

Figure 6, AuAu, part 2/2

Figure 7, p + p collisions

Figure 7, Au + Au collisions

Figure 8

Figure 9

Figure 10

Figure 11, FIT1, 2-3

Figure 11, FIT1, 3-4

Figure 11, FIT1, 4-5

Figure 11, FIT2, 2-3

Figure 11, FIT2, 3-4

Figure 11, FIT2, 4-5

Figure 12, 0-20%, head

Figure 12, 20-40%, head

Figure 12, 40-60%, head

Figure 12, 60-92%, head

Figure 12, p + p, head

Figure 12, 0-20%, shoulder

Figure 12, 20-40%, shoulder

Figure 12, 40-60%, shoulder

Figure 12, 60-92%, shoulder

Figure 12, p + p, shoulder

Figure 16, Au + Au

Figure 16, p + p

Figure 17

Figure 18, p + p, near-side

Figure 18, 0-20%, near-side

Figure 23, AuAu

Figure 23, pp

Figure 24, eta

Figure 24, phi

Figure 25, head

Figure 25, away-side shoulder

Figure 25, near-side

Figure 26, 3 − 4 GeV/c

Figure 26, 4 − 5 GeV/c

Figure 28

Figure 30, 20-40%

Figure 30, 40-60%

Figure 30, 60-92%

Figure 31, 0-20%, away-side

Figure 31, 20-40%, away-side

Figure 31, 40-60%, away-side

Figure 31, 60-92%, away-side

Figure 36, Au + Au

Figure 36, p + p

Figure 37, Au + Au

Figure 37, p + p

Figure 38, Au + Au

Figure 38, p + p

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