Rapidity dependence of antiproton-to-proton ratios in Au + Au collisions at √sNN = 130 GeV
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Rapidity dependence of antiproton-to-proton ratios in Au + Au collisions at √sNN = 130 GeV. / BRAHMS Collaboration.
I: Physical Review Letters, Bind 87, Nr. 11, 112305, 10.09.2001.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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T1 - Rapidity dependence of antiproton-to-proton ratios in Au + Au collisions at √sNN = 130 GeV
AU - Bearden, I. G.
AU - Beavis, D.
AU - Besliu, C.
AU - Blyakhman, Y.
AU - Brzychczyk, J.
AU - Budick, B.
AU - Bøggild, H.
AU - Chasman, C.
AU - Christensen, C. H.
AU - Cibor, J.
AU - Debbe, R.
AU - Gaardhøje, J. J.
AU - Grotowski, K.
AU - Hagel, K.
AU - Holme, A. K.
AU - Ito, H.
AU - Jipa, A.
AU - Jørdre, J. I.
AU - Jundt, F.
AU - Jørgensen, C. E.
AU - Keutgen, T.
AU - Kozik, T.
AU - Larsen, T. M.
AU - Løvhøiden, G. L.
AU - Majka, Z.
AU - Makeev, A.
AU - McBreen, B.
AU - Murray, M.
AU - Natowitz, J.
AU - Nielsen, B. S.
AU - Olchanski, K.
AU - Olness, J.
AU - Ouerdane, D.
AU - Płaneta, R.
AU - Rami, F.
AU - Röhrich, D.
AU - Samset, B. H.
AU - Sanders, S. J.
AU - Sheetz, R. A.
AU - Sosin, Z.
AU - Staszel, P.
AU - Thorsteinsen, T. F.
AU - Tveter, T. S.
AU - Videbæk, F.
AU - Wada, R.
AU - Wieloch, A.
AU - Zgura, I. S.
AU - BRAHMS Collaboration
PY - 2001/9/10
Y1 - 2001/9/10
N2 - Measurements, with the BRAHMS detector, of the antiproton-to-proton ratio at midrapidities and forward rapidities, are presented for Au + Au reactions at √sNN = 130 GeV, and for three different collision centralities. For collisions in the 0%-40% centrality range, we find N (p̄) / N (p) = 0.64 ± 0.04(stat) ± 0.06(syst) at y ≈ 0, 0.66 ± 0.03 ± 0.06 at y ≈ 0.7, and 0.41 ± 0.04 ± 0.06 at y ≈ 2. The ratios are found to be nearly independent of collision centrality and transverse momentum. The antiproton and proton rapidity densities vary differently with rapidity, and indicate a significant degree of collision transparency, although a net-baryon free midrapidity plateau (Bjorken limit) is not yet reached.
AB - Measurements, with the BRAHMS detector, of the antiproton-to-proton ratio at midrapidities and forward rapidities, are presented for Au + Au reactions at √sNN = 130 GeV, and for three different collision centralities. For collisions in the 0%-40% centrality range, we find N (p̄) / N (p) = 0.64 ± 0.04(stat) ± 0.06(syst) at y ≈ 0, 0.66 ± 0.03 ± 0.06 at y ≈ 0.7, and 0.41 ± 0.04 ± 0.06 at y ≈ 2. The ratios are found to be nearly independent of collision centrality and transverse momentum. The antiproton and proton rapidity densities vary differently with rapidity, and indicate a significant degree of collision transparency, although a net-baryon free midrapidity plateau (Bjorken limit) is not yet reached.
UR - http://www.scopus.com/inward/record.url?scp=39249083572&partnerID=8YFLogxK
M3 - Journal article
VL - 87
JO - Physical Review Letters
JF - Physical Review Letters
SN - 0031-9007
IS - 11
M1 - 112305
ER -
ID: 218394133