TY - JOUR
T1 - Rapidity and centrality dependence of particle production for identified hadrons in Cu plus Cu collisions at root s(NN)=200 GeV
AU - Arsene, I.C.
AU - Bearden, Ian
AU - Beavis, D.
AU - Bekele, S.
AU - Besliu, C.
AU - Budick, B.
AU - Bøggild, Hans
AU - Chasman, C.
AU - Christensen, Christian Holm
AU - Christiansen, Peter
AU - Dalsgaard, Hans Hjersing
AU - Debbe, R.
AU - Gaardhøje, Jens Jørgen
AU - Nielsen, Børge Svane
AU - Jørgensen, C.E.
AU - Nygaard, Casper
AU - Larsen, Truls Martin
PY - 2016/7/20
Y1 - 2016/7/20
N2 - The BRAHMS collaboration has measured transverse momentum spectra of pions, kaons, protons, and antiprotons at rapidities 0 and 3 for Cu+Cu collisions at sNN=200 GeV. As the collisions become more central the collective radial flow increases while the temperature of kinetic freeze-out decreases. The temperature is lower and the radial flow weaker at forward rapidity. Pion and kaon yields with transverse momenta between 1.5 and 2.5 GeV/c are suppressed for central collisions relative to scaled p+p collisions. This suppression, which increases as the collisions become more central, is consistent with jet quenching models and is also present with comparable magnitude at forward rapidity. At such rapidities, initial state effects may also be present and persistence of the meson suppression to high rapidity may reflect a combination of jet quenching and nuclear shadowing. The ratio of protons to mesons increases as the collisions become more central and is largest at forward rapidities.
AB - The BRAHMS collaboration has measured transverse momentum spectra of pions, kaons, protons, and antiprotons at rapidities 0 and 3 for Cu+Cu collisions at sNN=200 GeV. As the collisions become more central the collective radial flow increases while the temperature of kinetic freeze-out decreases. The temperature is lower and the radial flow weaker at forward rapidity. Pion and kaon yields with transverse momenta between 1.5 and 2.5 GeV/c are suppressed for central collisions relative to scaled p+p collisions. This suppression, which increases as the collisions become more central, is consistent with jet quenching models and is also present with comparable magnitude at forward rapidity. At such rapidities, initial state effects may also be present and persistence of the meson suppression to high rapidity may reflect a combination of jet quenching and nuclear shadowing. The ratio of protons to mesons increases as the collisions become more central and is largest at forward rapidities.
U2 - 10.1103/physrevc.94.014907
DO - 10.1103/physrevc.94.014907
M3 - Journal article
SN - 0556-2813
VL - 94
JO - Physical Review C (Nuclear Physics)
JF - Physical Review C (Nuclear Physics)
IS - 1
M1 - 014907
ER -