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  • 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.
  • 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, Y.
  • 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.
  • Stachel, J.
  • Sumbera, M.
  • Tilsner, H.
  • Tserruya, I.
  • Wessels, J.
  • Wienold, T.
  • Windelband, B.
  • Wurm, J.
  • Xie, W.
  • Yurevich, S.
  • Yurevich, V.
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Publication date
March 2003

Abstract

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 iliciica...

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