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Three-particle coincidence of the long range pseudorapidity correlation in high energy nucleus-nucleus collisions

The STAR collaboration
Phys.Rev.Lett. 105 (2010) 022301, 2010.

Abstract (data abstract)
We report the first three-particle coincidence measurement in pseudorapidity (∆η) between a high transverse momentum (p⊥) trigger particle and two lower p⊥ associated particles within azimuth |∆φ|<0.7 in $\sqrt{s_{NN}}$= 200 GeV d+Au and Au+Au collisions. Charge ordering properties are exploited to separate the jet-like component and the ridge (long-range ∆η correlation). The results indicate that the particles from the ridge are uncorrelated in ∆η not only with the trigger particle but also between themselves event-by-event. In addition, the production of the ridge appears to be uncorrelated to the presence of the narrow jet-like component.

  • Table 1(a)

    Data from Figure 1(a)

    10.17182/hepdata.102404.v1/t1

    Correlated hadron distribution in ∆φ(|η|<1 with a high-p⊥trigger particle in 0-12% Au+Au collisions for 3<p(t)⊥<10 GeV/cand 1<p(a)⊥<3GeV/c. The ZYA1-normalized flow...

  • Table 1(b)

    Data from Figure 1(b)

    10.17182/hepdata.102404.v1/t2

    Correlated hadron distribution ∆η(|∆φ|<0.7) with a high-p⊥ trigger particle in 0-12% Au+Au collisions for 3<p(t)⊥<10 GeV/c and 1<p(a)⊥<3GeV/c. The ∆η...

  • Table 2(a)

    Data from Figure 2(a)

    10.17182/hepdata.102404.v1/t3

    Background-subtracted charge-independent (AAT ) correlated hadron pair density in minimum bias d+Au collisions for 3<p(t)⊥<10 GeV/cand 1<p(a)⊥<3 GeV/c. The results...

  • Table 2(b)

    Data from Figure 2(b)

    10.17182/hepdata.102404.v1/t4

    Background-subtracted charge-independent (AAT ) correlated hadron pair density in 40-80% Au+Au collisions for 3<p(t)⊥<10 GeV/cand 1<p(a)⊥<3 GeV/c. The results are...

  • Table 2(c)

    Data from Figure 2(c)

    10.17182/hepdata.102404.v1/t5

    Background-subtracted charge-independent (AAT ) correlated hadron pair density in 0-12% Au+Au collisions for 3<p(t)⊥<10 GeV/cand 1<p(a)⊥<3 GeV/c. The results are...

  • Table 3(a)

    Data from Figure 3(a)

    10.17182/hepdata.102404.v1/t6

    The average correlated hadron pair density per trigger particle as a function of R for all charges in minimum 0-12%...

  • Table 3(b)

    Data from Figure 3(a)

    10.17182/hepdata.102404.v1/t7

    The average correlated hadron pair density per trigger particle as a function of R for all charges in minimum 40-80%...

  • Table 3(c)

    Data from Figure 3(a)

    10.17182/hepdata.102404.v1/t8

    The average correlated hadron pair density per trigger particle as a function of R for all charges in minimum d+Au...

  • Table 3(d)

    Data from Figure 3(b)

    10.17182/hepdata.102404.v1/t9

    Radial dependence of average 3-particle correlation pair density for 0-12% Au+Au (like-sign triplets) data. The results are shown in Fig....

  • Table 3(e)

    Data from Figure 3(b)

    10.17182/hepdata.102404.v1/t10

    Radial dependence of average 3-particle correlation pair density for 40-80% Au+Au (like-sign triplets) data. The contribution from other charge combinations,...

  • Table 3(f)

    Data from Figure 3(b)

    10.17182/hepdata.102404.v1/t11

    Radial dependence of average 3-particle correlation pair density for d+Au (AAT) data. We expect the ridge contributions in the correlated...

  • Table 3(g)

    Data from Figure 3(b)

    10.17182/hepdata.102404.v1/t12

    for same-sign associated particles (A^\pm A^\pm T^\pm and A^\pm A^\pm T^\mp) in 0-12% Au+Au collisions Systematic uncertainties are shown in...

  • Table 4(a)

    Data from Figure 4(a)

    10.17182/hepdata.102404.v1/t13

    The R dependence of the average〈ˆPrr〉and〈ˆPjj〉+〈ˆPjr〉in 0-12% Au+Au collisions.The ridge pair density is consistent with a constant 60.14±0.02 (χ2/ndf=5.8/7). Gaussian...

  • Table 4(b)

    Data from Figure 4(a)

    10.17182/hepdata.102404.v1/t14

    The average correlated hadron pair density per trigger particle in 0-12% Au+Au collisions for the jet-like andridge components as a...

  • Table 4(c)

    Data from Figure 4(b)

    10.17182/hepdata.102404.v1/t15

    The R dependence of the average in 0-12% Au+Au collisions.for the ridge as a function of ξ within R<1.4. The...

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