Rapidity dependence of high p_T suppression at sqrt{s_{NN}}=62.4{GeV}

I. Arsene; I. G. Bearden; D. Beavis; C. Besliu; B. Budick; H. Bøggild; C. Chasman; C. H. Christensen; P. Christiansen; J. Cibor; R. Debbe; E. Enger; J. J. Gaardhøje; K. Hagel; H. Ito; A. Jipa; F. Jundt; E. B. Johnson; J. I. Jørdre; C. E. Jørgensen; R. Karabowicz; E. J. Kim; T. Kozik; T. M. Larsen; J. H. Lee; Y. K. Lee; S. Lindal; R. Lystad; G. Løvhøiden; Z. Majka; M. Mikelsen; M. Murray; J. Natowitz; B. Neumann; B. S. Nielsen; D. Ouerdane; R. Płaneta; F. Ramiıres; C. Ristea; O. Ristea; D. Röhrich; B. H. Samset; D. Sandberg; S. J. Sanders; R. A. Scheetz; P. Staszel; T. S. Tveter; F. Videbæk; R. Wada; Z. Yin; H. Yang; I. S. Zgura

arXiv · nucl-ex/0602018

Rapidity dependence of high p_T suppression at sqrt{s_{NN}}=62.4{GeV}

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Abstract

We present measurements of charged hadron p_T spectra from Au+Au collisions at sqrt(snn)=62.4 GeV for pseudorapidities eta=0, eta=1 and eta=3.2. Around midrapidity (eta=0, eta=1) we find nuclear modification factors at levels suggesting a smaller degree of high p_T suppression than in the same reaction at higher energy sqrt(snn)=200 GeV. At the high pseudorapidity, eta=3.2, where nuclear modification factors cannot be constructed due to the lack of p+p reference data, we find a significant reduction of R_{CP} (central to peripheral ratio) as compared to midrapidity.

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I. Arsene, I. G. Bearden, D. Beavis, C. Besliu, B. Budick, H. Bøggild, C. Chasman, C. H. Christensen, P. Christiansen, J. Cibor, R. Debbe, E. Enger, J. J. Gaardhøje, K. Hagel, H. Ito, A. Jipa, F. Jundt, E. B. Johnson, J. I. Jørdre, C. E. Jørgensen, R. Karabowicz, E. J. Kim, T. Kozik, T. M. Larsen, J. H. Lee, Y. K. Lee, S. Lindal, R. Lystad, G. Løvhøiden, Z. Majka, M. Mikelsen, M. Murray, J. Natowitz, B. Neumann, B. S. Nielsen, D. Ouerdane, R. Płaneta, F. Ramiıres, C. Ristea, O. Ristea, D. Röhrich, B. H. Samset, D. Sandberg, S. J. Sanders, R. A. Scheetz, P. Staszel, T. S. Tveter, F. Videbæk, R. Wada, Z. Yin, H. Yang, I. S. Zgura. 2006-02-17. Rapidity dependence of high p_T suppression at sqrt{s_{NN}}=62.4{GeV}. https://arxiv.org/abs/nucl-ex/0602018

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