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          Institute: MPI für Kernphysik     Collection: Nuclear Physics and Nuclear Probes     Display Documents

ID: 63191.0, MPI für Kernphysik / Nuclear Physics and Nuclear Probes
Latest results from CERES/NA45
Authors:Adamová, 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.I.; Filimonov, K.; Fomenko, K.; Fraenkel, Z.; Garabatos, C.; Glässel, P.; Hering, G.; Holeczek, J.; Kushpil, V.; Lenkeit, B.; Ludolphs, W.; Maas, A.; Marín, A.; Messer, F.; Milosevic, J.; Milov, A.; Miskowiec, D.; Musa, L.; Panebrattsev, Yu.; Petchenova, O.; Petrácek, V.; Pfeiffer, A.; Rak, J.; Ravinovich, I.; Rehak, P.; Richter, M.; Sako, H.; Schmitz, W.; Schukraft, J.; Sedykh, S.; Seipp, W.; Sharma, A.; Shimansky, S.; Slívová, J.; Specht, H. J.; Stachel, J.; Sumbera, M.; Tilsner, H.; Tserruya, I.; Wessels, J. P.; Wienold, T.; Windelband, B.; Wurm, J. P.; Xie, W.; Yurevich, S.; Yurevich, V.
Research Context:CERES/NA45 Collaboration
Date of Publication (YYYY-MM-DD):2003-03-10
Title of Journal:Nuclear Physics A
Volume (in Journal):715
Start Page:262c
End Page:271c
Name of Conference/Meeting:Quark Matter 2002. 16th International Conference on Ultra-Relativistic Nucleus-Nucleus Collisions. Nantes, France. 18-24 July 2002.
Place of Conference/Meeting:Nantes, France
(Start) Date of Conference/Meeting
End Date of Conference/Meeting 
Copyright:© 2002 Elsevier Science B.V.
Review Status:not specified
Audience:Experts Only
Abstract / Description:In this talk latest results from the analysis of e ‘e--pairs emitted in Pb+Au collisions
at, 40 AGeV/c and a combined analysis of all data available at 158 AGeV/c are presented.
The enhancement of low-mass e+e - -pairs (mee >0.2 GeV/c2) with respect to the expected
yield from hadron decays first reported at 158 AGeV/c is also found at 40 AGeV/c and is
mm larger t,here. Comparing to various theoretical models based on ~T+x- annihilation,
the data carp only 1x1 reproduced. if the prop&es of the intermediate p in the hot and
:ittilsti !urdium are n~otlificd. Throret icdlly. I he modific~ation is linked to baryon densit>
rdt her ! haI1 rf~rI!iJeI,aturc‘. Cr,l!5tI’:lil?tS from !luth111 dilta t dWl1 ;It thP ‘XliC hP?lIli cwqif5
;iitlerii iliciicate a Ilrt~tAl t~vollitiofl dlolig ki trk3jwI.orv r~f llighrr lxn’riri :lr~l!SiiJ ;~t li!
:1GeV/c. consist,ent with the observed la.rger enhancement factor.
External Publication Status:published
Document Type:Conference-Paper
Affiliations:MPI für Kernphysik/Group W. Hofmann/High-Energy Heavy Ion Physics (J.-P. Wurm)
External Affiliations:GSI, Darmstadt, Germany
NPI ASCR, e, Czech Republic
Heidelberg University, Germany
JINR Dubna, Russia
Weizmann Institute, Rehovot, Israel
SUNY at Stony Brook, U.S.A.
CERN, Geneva, Switzerland
BNL, Upton, U.S.A.
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