Event-by-event fluctuations of the mean transverse momentum in 40, 80, and 158 AGeV/c Pb-Au collisions

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Measurements of event-by-event fluctuations of the mean transverse momentum in Pb-Au collisions at 40, 80, and 158 AGeV/c are presented. A significant excess of mean $p_{T}$ fluctuations at midrapidity is observed over the expectation from statistically independent particle emission. The results are...

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Autores principales: Adamova, D, Agakichiev, G, Appelshäuser, H, Belaga, V, Braun-Munzinger, P, Campagnolo, R, Castillo, A, Cherlin, A, Damjanovic, S, Dietel, T, Dietrich, L, Drees, A, Esumi, S, Filimonov, K, Fomenko, K, Fraenkel, Zeev, Garabatos, C, Glässel, P, Hering, G, Holeczek, J, Kushpil, V, Lenkeit, B C, Ludolphs, W, Maas, A, Marin, A, Milosevic, J, Milov, A, Miskowiec, D, Musa, L, Panebratsev, Yu A, Petchenova, O Yu, Petracek, V, Pfeiffer, A, Rak, J, Ravinovich, I, Rehak, P, Richter, M, Sako, H, Schmitz, W, Schükraft, J, Sedykh, S, Seipp, W, Sharma, A, Shimansky, S S, Slivova, J, Specht, H J, Stachel, J, Sumbera, M, Tilsner, H, Tserruya, Itzhak, Wessels, J P, Wienold, T, Windelband, B, Wurm, J P, Xie, W, Yurevich, S, Yurevich, V
Lenguaje:eng
Publicado: 2003
Materias:
Nuclear Physics
Acceso en línea:https://dx.doi.org/10.1016/j.nuclphysa.2003.07.018
http://cds.cern.ch/record/909002
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author Adamova, D
Agakichiev, G
Appelshäuser, H
Belaga, V
Braun-Munzinger, P
Campagnolo, R
Castillo, A
Cherlin, A
Damjanovic, S
Dietel, T
Dietrich, L
Drees, A
Esumi, S
Filimonov, K
Fomenko, K
Fraenkel, Zeev
Garabatos, C
Glässel, P
Hering, G
Holeczek, J
Kushpil, V
Lenkeit, B C
Ludolphs, W
Maas, A
Marin, A
Milosevic, J
Milov, A
Miskowiec, D
Musa, L
Panebratsev, Yu A
Petchenova, O Yu
Petracek, V
Pfeiffer, A
Rak, J
Ravinovich, I
Rehak, P
Richter, M
Sako, H
Schmitz, W
Schükraft, J
Sedykh, S
Seipp, W
Sharma, A
Shimansky, S S
Slivova, J
Specht, H J
Stachel, J
Sumbera, M
Tilsner, H
Tserruya, Itzhak
Wessels, J P
Wienold, T
Windelband, B
Wurm, J P
Xie, W
Yurevich, S
Yurevich, V
author_facet Adamova, D
Agakichiev, G
Appelshäuser, H
Belaga, V
Braun-Munzinger, P
Campagnolo, R
Castillo, A
Cherlin, A
Damjanovic, S
Dietel, T
Dietrich, L
Drees, A
Esumi, S
Filimonov, K
Fomenko, K
Fraenkel, Zeev
Garabatos, C
Glässel, P
Hering, G
Holeczek, J
Kushpil, V
Lenkeit, B C
Ludolphs, W
Maas, A
Marin, A
Milosevic, J
Milov, A
Miskowiec, D
Musa, L
Panebratsev, Yu A
Petchenova, O Yu
Petracek, V
Pfeiffer, A
Rak, J
Ravinovich, I
Rehak, P
Richter, M
Sako, H
Schmitz, W
Schükraft, J
Sedykh, S
Seipp, W
Sharma, A
Shimansky, S S
Slivova, J
Specht, H J
Stachel, J
Sumbera, M
Tilsner, H
Tserruya, Itzhak
Wessels, J P
Wienold, T
Windelband, B
Wurm, J P
Xie, W
Yurevich, S
Yurevich, V
author_sort Adamova, D
collection CERN
description Measurements of event-by-event fluctuations of the mean transverse momentum in Pb-Au collisions at 40, 80, and 158 AGeV/c are presented. A significant excess of mean $p_{T}$ fluctuations at midrapidity is observed over the expectation from statistically independent particle emission. The results are somewhat smaller than recent measurements at RHIC. A possible nonmonotonic behavior of the mean $p_{T}$ fluctuations as function of collision energy, which may have indicated that the system has passed the critical point of the QCD phase diagram in the range of $\mu_{B}$ under investigation, has not been observed. The centrality dependence of mean $p_{T}$ fluctuations in Pb-Au is consistent with an extrapolation from $pp$ collisions assuming that the nonstatistical fluctuations scale with multiplicity. The results are compared to calculations by the RQMD and URQMD event generators.
id cern-909002
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2003
record_format invenio
spelling cern-9090022019-09-30T06:29:59Zdoi:10.1016/j.nuclphysa.2003.07.018http://cds.cern.ch/record/909002engAdamova, DAgakichiev, GAppelshäuser, HBelaga, VBraun-Munzinger, PCampagnolo, RCastillo, ACherlin, ADamjanovic, SDietel, TDietrich, LDrees, AEsumi, SFilimonov, KFomenko, KFraenkel, ZeevGarabatos, CGlässel, PHering, GHoleczek, JKushpil, VLenkeit, B CLudolphs, WMaas, AMarin, AMilosevic, JMilov, AMiskowiec, DMusa, LPanebratsev, Yu APetchenova, O YuPetracek, VPfeiffer, ARak, JRavinovich, IRehak, PRichter, MSako, HSchmitz, WSchükraft, JSedykh, SSeipp, WSharma, AShimansky, S SSlivova, JSpecht, H JStachel, JSumbera, MTilsner, HTserruya, ItzhakWessels, J PWienold, TWindelband, BWurm, J PXie, WYurevich, SYurevich, VEvent-by-event fluctuations of the mean transverse momentum in 40, 80, and 158 AGeV/c Pb-Au collisionsNuclear PhysicsMeasurements of event-by-event fluctuations of the mean transverse momentum in Pb-Au collisions at 40, 80, and 158 AGeV/c are presented. A significant excess of mean $p_{T}$ fluctuations at midrapidity is observed over the expectation from statistically independent particle emission. The results are somewhat smaller than recent measurements at RHIC. A possible nonmonotonic behavior of the mean $p_{T}$ fluctuations as function of collision energy, which may have indicated that the system has passed the critical point of the QCD phase diagram in the range of $\mu_{B}$ under investigation, has not been observed. The centrality dependence of mean $p_{T}$ fluctuations in Pb-Au is consistent with an extrapolation from $pp$ collisions assuming that the nonstatistical fluctuations scale with multiplicity. The results are compared to calculations by the RQMD and URQMD event generators.oai:cds.cern.ch:9090022003
spellingShingle Nuclear Physics
Adamova, D
Agakichiev, G
Appelshäuser, H
Belaga, V
Braun-Munzinger, P
Campagnolo, R
Castillo, A
Cherlin, A
Damjanovic, S
Dietel, T
Dietrich, L
Drees, A
Esumi, S
Filimonov, K
Fomenko, K
Fraenkel, Zeev
Garabatos, C
Glässel, P
Hering, G
Holeczek, J
Kushpil, V
Lenkeit, B C
Ludolphs, W
Maas, A
Marin, A
Milosevic, J
Milov, A
Miskowiec, D
Musa, L
Panebratsev, Yu A
Petchenova, O Yu
Petracek, V
Pfeiffer, A
Rak, J
Ravinovich, I
Rehak, P
Richter, M
Sako, H
Schmitz, W
Schükraft, J
Sedykh, S
Seipp, W
Sharma, A
Shimansky, S S
Slivova, J
Specht, H J
Stachel, J
Sumbera, M
Tilsner, H
Tserruya, Itzhak
Wessels, J P
Wienold, T
Windelband, B
Wurm, J P
Xie, W
Yurevich, S
Yurevich, V
Event-by-event fluctuations of the mean transverse momentum in 40, 80, and 158 AGeV/c Pb-Au collisions
title Event-by-event fluctuations of the mean transverse momentum in 40, 80, and 158 AGeV/c Pb-Au collisions
title_full Event-by-event fluctuations of the mean transverse momentum in 40, 80, and 158 AGeV/c Pb-Au collisions
title_fullStr Event-by-event fluctuations of the mean transverse momentum in 40, 80, and 158 AGeV/c Pb-Au collisions
title_full_unstemmed Event-by-event fluctuations of the mean transverse momentum in 40, 80, and 158 AGeV/c Pb-Au collisions
title_short Event-by-event fluctuations of the mean transverse momentum in 40, 80, and 158 AGeV/c Pb-Au collisions
title_sort event-by-event fluctuations of the mean transverse momentum in 40, 80, and 158 agev/c pb-au collisions
topic Nuclear Physics
url https://dx.doi.org/10.1016/j.nuclphysa.2003.07.018
http://cds.cern.ch/record/909002
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