@article{2ad442462ddb4aa0a205988bc60d8b42,
title = "Rapidity dependence of antiproton-to-proton ratios in Au + Au collisions at √sNN = 130 GeV",
abstract = "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 ({\=p}) / 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.",
author = "{BRAHMS Collaboration} and Bearden, {I. G.} and D. Beavis and C. Besliu and Y. Blyakhman and J. Brzychczyk and B. Budick and H. B{\o}ggild and C. Chasman and Christensen, {C. H.} and P. Christiansen and J. Cibor and R. Debbe and Gaardh{\o}je, {J. J.} and K. Grotowski and K. Hagel and O. Hansen and A. Holm and Holme, {A. K.} and H. Ito and E. Jakobsen and A. Jipa and J{\o}rdre, {J. I.} and F. Jundt and J{\o}rgensen, {C. E.} and T. Keutgen and Kim, {E. J.} and T. Kozik and Larsen, {T. M.} and Lee, {J. H.} and Lee, {Y. K.} and L{\o}vh{\o}iden, {G. L.} and Z. Majka and A. Makeev and B. McBreen and M. Murray and J. Natowitz and Nielsen, {B. S.} and K. Olchanski and J. Olness and D. Ouerdane and R. P{\l}aneta and F. Rami and D. R{\"o}hrich and Samset, {B. H.} and Sanders, {S. J.} and Sheetz, {R. A.} and Z. Sosin and P. Staszel and Thorsteinsen, {T. F.} and Tveter, {T. S.}",
note = "Publisher Copyright: {\textcopyright} 2001 The American Physical Society.",
year = "2001",
month = sep,
day = "10",
doi = "10.1103/PhysRevLett.87.112305",
language = "English (US)",
volume = "87",
pages = "112305/1--112305/4",
journal = "Physical Review Letters",
issn = "0031-9007",
publisher = "American Physical Society",
number = "11",
}