Energy and centrality dependence of antiproton and proton production in relativistic Pb+Pb collisions at the CERN SPS

The transverse mass distributions for antiprotons are measured at midrapidity for minimum bias Pb+Pb collisions at 158A GeV and for central Pb+Pb collisions at 20, 30, 40 and 80 A GeV beam energies in the NA49 experiment at the CERN SPS. The rapidity density, inverse slope parameter and mean transve...

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Detalles Bibliográficos
Autores principales: Alt, C., Anticic, T., Baatar, B., Barna, D., Bartke, J., Betev, L., Bialkowska, H., Blume, C., Boimska, B., Botje, M., Bracinik, J., Bramm, R., Buncic, P., Cerny, V., Christakoglou, P., Chvala, O., Cramer, J.G., Csato, P., Dinkelaker, P., Eckardt, V., Flierl, D., Fodor, Z., Foka, P., Friese, V., Gal, J., Gazdzicki, M., Genchev, V., Georgopoulos, G., Gladysz, E., Grebieszkow, K., Hegyi, S., Hohne, C., Kadija, K., Karev, A., Kliemant, M., Kniege, S., Kolesnikov, V.I., Kornas, E., Korus, R., Kowalski, M., Kraus, I., Kreps, M., Laslo, A., van Leeuwen, M., Levai, P., Litov, L., Lungwitz, B., Makariev, M., Malakhov, A.I., Mateev, M., Melkumov, G.L., Mischke, A., Mitrovski, M., Molnar, J., Mrowczynski, St., Nicolic, V., Palla, G., Panagiotou, A.D., Panayotov, D., Petridis, A., Pikna, M., Prindle, D., Puhlhofer, F., Renfordt, R., Roland, C., Roland, G., Rybczynski, M., Rybicki, A., Sandoval, A., Schmitz, N., Schuster, T., Seyboth, P., Sikler, F., Sitar, B., Skrzypczak, E., Stefanek, G., Stock, R., Strabel, C., Strobele, H., Susa, T., Szentpetery, I., Sziklai, J., Szymanski, P., Trubnikov, V., Varga, D., Vassiliou, M., Veres, G.I., Vesztergombi, G., Vranic, D., Wetzler, A., Wlodarczyk, Z., Yoo, I.K., Zimanyi, J.
Lenguaje:eng
Publicado: 2005
Materias:
Nuclear Physics
Acceso en línea:http://cds.cern.ch/record/918470
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author Alt, C.
Anticic, T.
Baatar, B.
Barna, D.
Bartke, J.
Betev, L.
Bialkowska, H.
Blume, C.
Boimska, B.
Botje, M.
Bracinik, J.
Bramm, R.
Buncic, P.
Cerny, V.
Christakoglou, P.
Chvala, O.
Cramer, J.G.
Csato, P.
Dinkelaker, P.
Eckardt, V.
Flierl, D.
Fodor, Z.
Foka, P.
Friese, V.
Gal, J.
Gazdzicki, M.
Genchev, V.
Georgopoulos, G.
Gladysz, E.
Grebieszkow, K.
Hegyi, S.
Hohne, C.
Kadija, K.
Karev, A.
Kliemant, M.
Kniege, S.
Kolesnikov, V.I.
Kornas, E.
Korus, R.
Kowalski, M.
Kraus, I.
Kreps, M.
Laslo, A.
van Leeuwen, M.
Levai, P.
Litov, L.
Lungwitz, B.
Makariev, M.
Malakhov, A.I.
Mateev, M.
Melkumov, G.L.
Mischke, A.
Mitrovski, M.
Molnar, J.
Mrowczynski, St.
Nicolic, V.
Palla, G.
Panagiotou, A.D.
Panayotov, D.
Petridis, A.
Pikna, M.
Prindle, D.
Puhlhofer, F.
Renfordt, R.
Roland, C.
Roland, G.
Rybczynski, M.
Rybicki, A.
Sandoval, A.
Schmitz, N.
Schuster, T.
Seyboth, P.
Sikler, F.
Sitar, B.
Skrzypczak, E.
Stefanek, G.
Stock, R.
Strabel, C.
Strobele, H.
Susa, T.
Szentpetery, I.
Sziklai, J.
Szymanski, P.
Trubnikov, V.
Varga, D.
Vassiliou, M.
Veres, G.I.
Vesztergombi, G.
Vranic, D.
Wetzler, A.
Wlodarczyk, Z.
Yoo, I.K.
Zimanyi, J.
author_facet Alt, C.
Anticic, T.
Baatar, B.
Barna, D.
Bartke, J.
Betev, L.
Bialkowska, H.
Blume, C.
Boimska, B.
Botje, M.
Bracinik, J.
Bramm, R.
Buncic, P.
Cerny, V.
Christakoglou, P.
Chvala, O.
Cramer, J.G.
Csato, P.
Dinkelaker, P.
Eckardt, V.
Flierl, D.
Fodor, Z.
Foka, P.
Friese, V.
Gal, J.
Gazdzicki, M.
Genchev, V.
Georgopoulos, G.
Gladysz, E.
Grebieszkow, K.
Hegyi, S.
Hohne, C.
Kadija, K.
Karev, A.
Kliemant, M.
Kniege, S.
Kolesnikov, V.I.
Kornas, E.
Korus, R.
Kowalski, M.
Kraus, I.
Kreps, M.
Laslo, A.
van Leeuwen, M.
Levai, P.
Litov, L.
Lungwitz, B.
Makariev, M.
Malakhov, A.I.
Mateev, M.
Melkumov, G.L.
Mischke, A.
Mitrovski, M.
Molnar, J.
Mrowczynski, St.
Nicolic, V.
Palla, G.
Panagiotou, A.D.
Panayotov, D.
Petridis, A.
Pikna, M.
Prindle, D.
Puhlhofer, F.
Renfordt, R.
Roland, C.
Roland, G.
Rybczynski, M.
Rybicki, A.
Sandoval, A.
Schmitz, N.
Schuster, T.
Seyboth, P.
Sikler, F.
Sitar, B.
Skrzypczak, E.
Stefanek, G.
Stock, R.
Strabel, C.
Strobele, H.
Susa, T.
Szentpetery, I.
Sziklai, J.
Szymanski, P.
Trubnikov, V.
Varga, D.
Vassiliou, M.
Veres, G.I.
Vesztergombi, G.
Vranic, D.
Wetzler, A.
Wlodarczyk, Z.
Yoo, I.K.
Zimanyi, J.
author_sort Alt, C.
collection CERN
description The transverse mass distributions for antiprotons are measured at midrapidity for minimum bias Pb+Pb collisions at 158A GeV and for central Pb+Pb collisions at 20, 30, 40 and 80 A GeV beam energies in the NA49 experiment at the CERN SPS. The rapidity density, inverse slope parameter and mean transverse mass derived from the transverse mass distributions are studied as a function of the incident energy and the collision centrality and compared to the relevant proton data. The shapes of the m_T distributions of antiprotons and protons are very similar. The ratios of the particle yields, antiproton/proton and antilambda/antiproton, are also analysed. The antiproton/proton ratio exhibits an increase with diminishing centrality and a steep rise with increasing beam energy. The antilambda/antiproton ratio increases beyond unity with decreasing beam energy.
id cern-918470
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2005
record_format invenio
spelling cern-9184702023-03-12T04:55:53Zhttp://cds.cern.ch/record/918470engAlt, C.Anticic, T.Baatar, B.Barna, D.Bartke, J.Betev, L.Bialkowska, H.Blume, C.Boimska, B.Botje, M.Bracinik, J.Bramm, R.Buncic, P.Cerny, V.Christakoglou, P.Chvala, O.Cramer, J.G.Csato, P.Dinkelaker, P.Eckardt, V.Flierl, D.Fodor, Z.Foka, P.Friese, V.Gal, J.Gazdzicki, M.Genchev, V.Georgopoulos, G.Gladysz, E.Grebieszkow, K.Hegyi, S.Hohne, C.Kadija, K.Karev, A.Kliemant, M.Kniege, S.Kolesnikov, V.I.Kornas, E.Korus, R.Kowalski, M.Kraus, I.Kreps, M.Laslo, A.van Leeuwen, M.Levai, P.Litov, L.Lungwitz, B.Makariev, M.Malakhov, A.I.Mateev, M.Melkumov, G.L.Mischke, A.Mitrovski, M.Molnar, J.Mrowczynski, St.Nicolic, V.Palla, G.Panagiotou, A.D.Panayotov, D.Petridis, A.Pikna, M.Prindle, D.Puhlhofer, F.Renfordt, R.Roland, C.Roland, G.Rybczynski, M.Rybicki, A.Sandoval, A.Schmitz, N.Schuster, T.Seyboth, P.Sikler, F.Sitar, B.Skrzypczak, E.Stefanek, G.Stock, R.Strabel, C.Strobele, H.Susa, T.Szentpetery, I.Sziklai, J.Szymanski, P.Trubnikov, V.Varga, D.Vassiliou, M.Veres, G.I.Vesztergombi, G.Vranic, D.Wetzler, A.Wlodarczyk, Z.Yoo, I.K.Zimanyi, J.Energy and centrality dependence of antiproton and proton production in relativistic Pb+Pb collisions at the CERN SPSNuclear PhysicsThe transverse mass distributions for antiprotons are measured at midrapidity for minimum bias Pb+Pb collisions at 158A GeV and for central Pb+Pb collisions at 20, 30, 40 and 80 A GeV beam energies in the NA49 experiment at the CERN SPS. The rapidity density, inverse slope parameter and mean transverse mass derived from the transverse mass distributions are studied as a function of the incident energy and the collision centrality and compared to the relevant proton data. The shapes of the m_T distributions of antiprotons and protons are very similar. The ratios of the particle yields, antiproton/proton and antilambda/antiproton, are also analysed. The antiproton/proton ratio exhibits an increase with diminishing centrality and a steep rise with increasing beam energy. The antilambda/antiproton ratio increases beyond unity with decreasing beam energy.The transverse mass distributions for antiprotons are measured at midrapidity for minimum bias Pb+Pb collisions at 158A GeV and for central Pb+Pb collisions at 20A, 30A, 40A and 80A GeV beam energies in the fixed target experiment NA49 at the CERN SPS. The rapidity density, inverse slope parameter and mean transverse mass derived from the transverse mass distributions are studied as a function of the incident energy and the collision centrality and compared to the relevant data on proton production. The shapes of the transverse mass distributions of antiproton and proton are very similar. The ratios of the particle yields, antiproton/proton and antilambda/antiproton, are also analysed. The antiproton to proton ratio exhibits an increase with decreasing centrality and a steep rise with increasing beam energy. The antilambda to antiproton ratio increases beyond unity with decreasing beam energy.nucl-ex/0512033oai:cds.cern.ch:9184702005-12-21
spellingShingle Nuclear Physics
Alt, C.
Anticic, T.
Baatar, B.
Barna, D.
Bartke, J.
Betev, L.
Bialkowska, H.
Blume, C.
Boimska, B.
Botje, M.
Bracinik, J.
Bramm, R.
Buncic, P.
Cerny, V.
Christakoglou, P.
Chvala, O.
Cramer, J.G.
Csato, P.
Dinkelaker, P.
Eckardt, V.
Flierl, D.
Fodor, Z.
Foka, P.
Friese, V.
Gal, J.
Gazdzicki, M.
Genchev, V.
Georgopoulos, G.
Gladysz, E.
Grebieszkow, K.
Hegyi, S.
Hohne, C.
Kadija, K.
Karev, A.
Kliemant, M.
Kniege, S.
Kolesnikov, V.I.
Kornas, E.
Korus, R.
Kowalski, M.
Kraus, I.
Kreps, M.
Laslo, A.
van Leeuwen, M.
Levai, P.
Litov, L.
Lungwitz, B.
Makariev, M.
Malakhov, A.I.
Mateev, M.
Melkumov, G.L.
Mischke, A.
Mitrovski, M.
Molnar, J.
Mrowczynski, St.
Nicolic, V.
Palla, G.
Panagiotou, A.D.
Panayotov, D.
Petridis, A.
Pikna, M.
Prindle, D.
Puhlhofer, F.
Renfordt, R.
Roland, C.
Roland, G.
Rybczynski, M.
Rybicki, A.
Sandoval, A.
Schmitz, N.
Schuster, T.
Seyboth, P.
Sikler, F.
Sitar, B.
Skrzypczak, E.
Stefanek, G.
Stock, R.
Strabel, C.
Strobele, H.
Susa, T.
Szentpetery, I.
Sziklai, J.
Szymanski, P.
Trubnikov, V.
Varga, D.
Vassiliou, M.
Veres, G.I.
Vesztergombi, G.
Vranic, D.
Wetzler, A.
Wlodarczyk, Z.
Yoo, I.K.
Zimanyi, J.
Energy and centrality dependence of antiproton and proton production in relativistic Pb+Pb collisions at the CERN SPS
title Energy and centrality dependence of antiproton and proton production in relativistic Pb+Pb collisions at the CERN SPS
title_full Energy and centrality dependence of antiproton and proton production in relativistic Pb+Pb collisions at the CERN SPS
title_fullStr Energy and centrality dependence of antiproton and proton production in relativistic Pb+Pb collisions at the CERN SPS
title_full_unstemmed Energy and centrality dependence of antiproton and proton production in relativistic Pb+Pb collisions at the CERN SPS
title_short Energy and centrality dependence of antiproton and proton production in relativistic Pb+Pb collisions at the CERN SPS
title_sort energy and centrality dependence of antiproton and proton production in relativistic pb+pb collisions at the cern sps
topic Nuclear Physics
url http://cds.cern.ch/record/918470
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