Dagmar Adamová, Geydar Agakishiev, Dariusz Antończyk, Harald Appelshäuser, Victoria Vladimirovna Belaga, Jana Bielčíková, Peter Braun-Munzinger, Oliver Busch, Alexander Cherlin, Sanja Damjanović, Thomas Dietel, Lars Dietrich, Axel Drees, Wilrid Dubitzky, ShinIchi Esumi, Kirill Filimonov, Kirill Fomenko, Zeev Fraenkel, Chilo Garabatos, Peter Glässel, Jacek Holeczek, Vasilii V. Kushpil, Axel Torsten Maas, Ana Marín, Jovan Milošević, Alexander Milov, Dariusz Czesław Miśkowiec, Yuri Panebrattsev, Olga Petchenova, Vojtech Petráček, Andreas Pfeiffer, Jan Rak, Ilia Ravinovich, Pavel Rehak, Hiroyuki Sako, Wolfgang Schmitz, Sergei Sedykh, Sepan Shimansky, Johanna Stachel, Michal Šumbera, Heinz Tilsner, Itzhak Tserruya, Johannes P. Wessels, Thomas Wienold, Johann Peter Wurm, Wei Xie, Sergey Yurevich, Vladimir Yurevich
- We present a measurement of e+e− pair production in central PbAu collisions at 158A GeV/c. As reported earlier, a significant excess of the e+e− pair yield over the expectation from hadron decays is observed. The improved mass resolution of the present data set, recorded with the upgraded CERES experiment at the CERN-SPS, allows for a comparison of the data with different theoretical approaches. The data clearly favor a substantial in-medium broadening of the ρ spectral function over a density-dependent shift of the ρ pole mass. The in-medium broadening model implies that baryon induced interactions are the key mechanism to the observed modifications of the ρ meson at SPS energy.
MetadatenAuthor: | Dagmar AdamováORCiDGND, Geydar AgakishievGND, Dariusz AntończykGND, Harald AppelshäuserORCiDGND, Victoria Vladimirovna Belaga, Jana BielčíkováORCiDGND, Peter Braun-MunzingerORCiDGND, Oliver BuschGND, Alexander CherlinORCiD, Sanja DamjanovićORCiDGND, Thomas DietelORCiDGND, Lars DietrichGND, Axel DreesORCiDGND, Wilrid DubitzkyGND, ShinIchi EsumiORCiDGND, Kirill FilimonovGND, Kirill Fomenko, Zeev Fraenkel, Chilo GarabatosORCiDGND, Peter GlässelORCiDGND, Jacek Holeczek, Vasilii V. Kushpil, Axel Torsten MaasORCiDGND, Ana MarínORCiDGND, Jovan MiloševićORCiDGND, Alexander MilovORCiD, Dariusz Czesław MiśkowiecORCiD, Yuri Panebrattsev, Olga PetchenovaGND, Vojtech PetráčekGND, Andreas PfeifferORCiDGND, Jan RakGND, Ilia RavinovichORCiD, Pavel Rehak, Hiroyuki SakoORCiD, Wolfgang SchmitzGND, Sergei Sedykh, Sepan ShimanskyORCiD, Johanna StachelORCiDGND, Michal ŠumberaORCiD, Heinz TilsnerGND, Itzhak TserruyaORCiD, Johannes P. WesselsORCiDGND, Thomas WienoldGND, Johann Peter WurmGND, Wei XieORCiD, Sergey YurevichGND, Vladimir Yurevich |
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URN: | urn:nbn:de:hebis:30:3-766250 |
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DOI: | https://doi.org/10.1016/j.physletb.2008.07.104 |
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ISSN: | 0370-2693 |
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Parent Title (English): | Physics Letters B |
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Publisher: | Elsevier |
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Place of publication: | Amsterdam |
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Document Type: | Article |
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Language: | English |
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Date of Publication (online): | 2008/08/07 |
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Date of first Publication: | 2008/08/07 |
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Publishing Institution: | Universitätsbibliothek Johann Christian Senckenberg |
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Release Date: | 2023/10/27 |
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Volume: | 666 |
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Issue: | 5 |
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Page Number: | 5 |
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First Page: | 425 |
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Last Page: | 429 |
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HeBIS-PPN: | 517560860 |
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Institutes: | Physik / Physik |
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| Informatik und Mathematik / Informatik |
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| Wissenschaftliche Zentren und koordinierte Programme / Frankfurt Institute for Advanced Studies (FIAS) |
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Dewey Decimal Classification: | 5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik |
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Sammlungen: | Universitätspublikationen |
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Licence (German): | Creative Commons - Namensnennung 4.0 |
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