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Suppression of hadrons with large transverse momentum in central Au+Au collisions at $\sqrt{s_{NN}}$ = 130-GeV

The collaboration
Phys.Rev.Lett. 88 (2002) 022301, 2002.

Abstract (data abstract)
BNL-RHIC. Transverse momentum spectra for charged hadrons and for neutral pions in the range 1~GeV/c $< p_T <$ 5 GeV/c have been measured by the PHENIX experiment at RHIC in Au+Au collisions at $\sqrt{s_{_{NN}}}=130$ GeV. At high $p_T$ the spectra from peripheral nuclear collisions are consistent with scaling the spectra from p+p collisions by the average number of binary nucleon-nucleon collisions. The spectra from central collisions are significantly suppressed when compared to the binary-scaled p+p expectation, and also when compared to similarly binary-scaled peripheral collisions, indicating a novel nuclear medium effect in central nuclear collisions at RHIC energies.

• #### Figure 1 PbSc 0-10%

10.17182/hepdata.110700.v1/t1

The yields per event at mid-rapidity for neutral pions as a function of $p_T$ for 0-80% from the PbSc detector.

• #### Figure 1 PbSc 60-80%

10.17182/hepdata.110700.v1/t2

The yields per event at mid-rapidity for neutral pions as a function of $p_T$ for 60-80% from the PbSc detector.

• #### Figure 1 PbGl 0-10%

10.17182/hepdata.110700.v1/t3

The yields per event at mid-rapidity for neutral pions as a function of $p_T$ for 0-10% from the PbGl detector.

• #### Figure 1 PbGl 60-80%

10.17182/hepdata.110700.v1/t4

The yields per event at mid-rapidity for neutral pions as a function of $p_T$ for 60-80% from the PbGl detector.

• #### Figure 1 charged hadrons 0-10%

10.17182/hepdata.110700.v1/t5

The yields per event at mid-rapidity for charged hadrons as a function of $p_T$ for 0-10%.

• #### Figure 1 charged hadrons 60-80%

10.17182/hepdata.110700.v1/t6

The yields per event at mid-rapidity for charged hadrons as a functon of $p_T$ for 60-80%.

• #### Figure 2 PbSc R_AA

10.17182/hepdata.110700.v1/t7

The ratio $R_{AA}$ for neutral pions in central Au+Au collisions from the PbSc detector.

• #### Figure 2 PbGl R_AA

10.17182/hepdata.110700.v1/t8

The ratio $R_{AA}$ for neutral pions in central Au+Au collisions from the PbGl detector.

• #### Figure 2 charged hadron R_AA

10.17182/hepdata.110700.v1/t9

The ratio $R_{AA}$ for charged hadrons in central Au+Au collisions.

• #### Figure 3 PbSc ratio of central/peripheral

10.17182/hepdata.110700.v1/t10

Ratio of yield per event in central vs peripheral Au+Au collisions, with each divided by $N_{binary}$ for that class.

• #### Figure 3 PbGl ratio of central/peripheral

10.17182/hepdata.110700.v1/t11

Ratio of yield per event in central vs peripheral Au+Au collisions, with each divided by N_binary for that class.

• #### Figure 3 charged hadron ratio of central/peripheral

10.17182/hepdata.110700.v1/t12

Ratio of yield her event in central vs peripheral Au+Au collisions, with each divided by N_binary for that class.

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