EPJ Web of Conferences (Mar 2014)
Low mass dielectrons radiated off cold nuclear matter measured with HADES
- Lorenz M.,
- Agakishiev G.,
- Behnke C.,
- Belver D.,
- Belyaev A.,
- Berger-Chen J.C.,
- Blanco A.,
- Blume C.,
- Böhmer M.,
- Cabanelas P.,
- Chernenko S.,
- Dritsa C.,
- Dybczak A.,
- Epple E.,
- Fabbietti L.,
- Fateev O.,
- Fonte P.,
- Friese J.,
- Fröhlich I.,
- Galatyuk T.,
- Garzón J. A.,
- Gill K.,
- Golubeva M.,
- González-Díaz D.,
- Guber F.,
- Gumberidze M.,
- Harabasz S.,
- Hennino T.,
- Höhne C.,
- Holzmann R.,
- Huck P.,
- Ierusalimov A.,
- Ivashkin A.,
- Jurkovic M.,
- Kämpfer B.,
- Karavicheva T.,
- Koenig I.,
- Koenig W.,
- Kolb B. W.,
- Korcyl G.,
- Kornakov G.,
- Kotte R.,
- Krása A.,
- Krebs E.,
- Krizek F.,
- Kuc H.,
- Kugler A.,
- Kurepin A.,
- Kurilkin A.,
- Kurilkin P.,
- Ladygin V.,
- Lalik R.,
- Lang S.,
- Lapidus K.,
- Lebedev A.,
- Lopes L.,
- Maier L.,
- Mangiarotti A.,
- Markert J.,
- Metag V.,
- Michel J.,
- Müntz C.,
- Münzer R.,
- Naumann L.,
- Palka M.,
- Parpottas Y.,
- Pechenov V.,
- Pechenova O.,
- Pietraszko J.,
- Przygoda W.,
- Ramstein B.,
- Rehnisch L.,
- Reshetin A.,
- Rustamov A.,
- Sadovsky A.,
- Salabura P.,
- Scheib T.,
- Schuldes H.,
- Siebenson J.,
- Sobolev Yu.G.,
- Spataro S.,
- Ströbele H.,
- Stroth J.,
- Strzempek P,
- Sturm C.,
- Svoboda O.,
- Tarantola A.,
- Teilab K.,
- Tlusty P.,
- Traxler M.,
- Tsertos H.,
- Vasiliev T.,
- Wagner V.,
- Weber M.,
- Wendisch C.,
- Wüstenfeld J.,
- Yurevich S.,
- Zanevsky Y.
Affiliations
- Lorenz M.
- Agakishiev G.
- Joint Institute of Nuclear Research
- Behnke C.
- Institut für Kernphysik, Goethe-Universität
- Belver D.
- LabCAF. F. Física, Univ. de Santiago de Compostela
- Belyaev A.
- Joint Institute of Nuclear Research
- Berger-Chen J.C.
- Excellence Cluster ’Origin and Structure of the Universe’
- Blanco A.
- LIP-Laboratório de Instrumentação e Física Experimental de Partículas
- Blume C.
- Institut für Kernphysik, Goethe-Universität
- Böhmer M.
- Physik Department E12, Technische Universität München
- Cabanelas P.
- LabCAF. F. Física, Univ. de Santiago de Compostela
- Chernenko S.
- Joint Institute of Nuclear Research
- Dritsa C.
- II.Physikalisches Institut, Justus Liebig Universität Giessen
- Dybczak A.
- Smoluchowski Institute of Physics, Jagiellonian University of Cracow
- Epple E.
- Excellence Cluster ’Origin and Structure of the Universe’
- Fabbietti L.
- Fateev O.
- Joint Institute of Nuclear Research
- Fonte P.
- Friese J.
- Physik Department E12, Technische Universität München
- Fröhlich I.
- Institut für Kernphysik, Goethe-Universität
- Galatyuk T.
- Garzón J. A.
- LabCAF. F. Física, Univ. de Santiago de Compostela
- Gill K.
- Institut für Kernphysik, Goethe-Universität
- Golubeva M.
- Institute for Nuclear Research, Russian Academy of Science
- González-Díaz D.
- Technische Universität Darmstadt
- Guber F.
- Institute for Nuclear Research, Russian Academy of Science
- Gumberidze M.
- Institut de Physique Nucléaire, CNRS/IN2P3 - Université Paris Sud
- Harabasz S.
- Technische Universität Darmstadt
- Hennino T.
- Institut de Physique Nucléaire, CNRS/IN2P3 - Université Paris Sud
- Höhne C.
- II.Physikalisches Institut, Justus Liebig Universität Giessen
- Holzmann R.
- GSI Helmholtzzentrum für Schwerionenforschung GmbH
- Huck P.
- Physik Department E12, Technische Universität München
- Ierusalimov A.
- Joint Institute of Nuclear Research
- Ivashkin A.
- Institute for Nuclear Research, Russian Academy of Science
- Jurkovic M.
- Physik Department E12, Technische Universität München
- Kämpfer B.
- Karavicheva T.
- Institute for Nuclear Research, Russian Academy of Science
- Koenig I.
- GSI Helmholtzzentrum für Schwerionenforschung GmbH
- Koenig W.
- GSI Helmholtzzentrum für Schwerionenforschung GmbH
- Kolb B. W.
- GSI Helmholtzzentrum für Schwerionenforschung GmbH
- Korcyl G.
- Smoluchowski Institute of Physics, Jagiellonian University of Cracow
- Kornakov G.
- LabCAF. F. Física, Univ. de Santiago de Compostela
- Kotte R.
- Institut für Strahlenphysik, Helmholtz-Zentrum Dresden-Rossendorf
- Krása A.
- Nuclear Physics Institute, Academy of Sciences of Czech Republic
- Krebs E.
- Institut für Kernphysik, Goethe-Universität
- Krizek F.
- Nuclear Physics Institute, Academy of Sciences of Czech Republic
- Kuc H.
- Kugler A.
- Nuclear Physics Institute, Academy of Sciences of Czech Republic
- Kurepin A.
- Institute for Nuclear Research, Russian Academy of Science
- Kurilkin A.
- Joint Institute of Nuclear Research
- Kurilkin P.
- Joint Institute of Nuclear Research
- Ladygin V.
- Joint Institute of Nuclear Research
- Lalik R.
- Excellence Cluster ’Origin and Structure of the Universe’
- Lang S.
- GSI Helmholtzzentrum für Schwerionenforschung GmbH
- Lapidus K.
- Excellence Cluster ’Origin and Structure of the Universe’
- Lebedev A.
- Institute of Theoretical and Experimental Physics
- Lopes L.
- LIP-Laboratório de Instrumentação e Física Experimental de Partículas
- Maier L.
- Physik Department E12, Technische Universität München
- Mangiarotti A.
- LIP-Laboratório de Instrumentação e Física Experimental de Partículas
- Markert J.
- Institut für Kernphysik, Goethe-Universität
- Metag V.
- II.Physikalisches Institut, Justus Liebig Universität Giessen
- Michel J.
- Institut für Kernphysik, Goethe-Universität
- Müntz C.
- Institut für Kernphysik, Goethe-Universität
- Münzer R.
- Excellence Cluster ’Origin and Structure of the Universe’
- Naumann L.
- Institut für Strahlenphysik, Helmholtz-Zentrum Dresden-Rossendorf
- Palka M.
- Smoluchowski Institute of Physics, Jagiellonian University of Cracow
- Parpottas Y.
- Pechenov V.
- Department of Physics, University of Cyprus
- Pechenova O.
- Institut für Kernphysik, Goethe-Universität
- Pietraszko J.
- Institut für Kernphysik, Goethe-Universität
- Przygoda W.
- Smoluchowski Institute of Physics, Jagiellonian University of Cracow
- Ramstein B.
- Institut de Physique Nucléaire, CNRS/IN2P3 - Université Paris Sud
- Rehnisch L.
- Institut für Kernphysik, Goethe-Universität
- Reshetin A.
- Institute for Nuclear Research, Russian Academy of Science
- Rustamov A.
- Institut für Kernphysik, Goethe-Universität
- Sadovsky A.
- Institute for Nuclear Research, Russian Academy of Science
- Salabura P.
- Smoluchowski Institute of Physics, Jagiellonian University of Cracow
- Scheib T.
- Institut für Kernphysik, Goethe-Universität
- Schuldes H.
- Institut für Kernphysik, Goethe-Universität
- Siebenson J.
- Excellence Cluster ’Origin and Structure of the Universe’
- Sobolev Yu.G.
- Nuclear Physics Institute, Academy of Sciences of Czech Republic
- Spataro S.
- Also at Dipartimento di Fisica Generale and INFN, Università di Torino
- Ströbele H.
- Institut für Kernphysik, Goethe-Universität
- Stroth J.
- Strzempek P
- Smoluchowski Institute of Physics, Jagiellonian University of Cracow
- Sturm C.
- GSI Helmholtzzentrum für Schwerionenforschung GmbH
- Svoboda O.
- Nuclear Physics Institute, Academy of Sciences of Czech Republic
- Tarantola A.
- Institut für Kernphysik, Goethe-Universität
- Teilab K.
- Institut für Kernphysik, Goethe-Universität
- Tlusty P.
- Nuclear Physics Institute, Academy of Sciences of Czech Republic
- Traxler M.
- GSI Helmholtzzentrum für Schwerionenforschung GmbH
- Tsertos H.
- Department of Physics, University of Cyprus
- Vasiliev T.
- Joint Institute of Nuclear Research
- Wagner V.
- Nuclear Physics Institute, Academy of Sciences of Czech Republic
- Weber M.
- Physik Department E12, Technische Universität München
- Wendisch C.
- Wüstenfeld J.
- Institut für Strahlenphysik, Helmholtz-Zentrum Dresden-Rossendorf
- Yurevich S.
- GSI Helmholtzzentrum für Schwerionenforschung GmbH
- Zanevsky Y.
- Joint Institute of Nuclear Research
- DOI
- https://doi.org/10.1051/epjconf/20146609011
- Journal volume & issue
-
Vol. 66
p. 09011
Abstract
The High Acceptance DiElectron Spectrometer HADES [1] is installed at the Helmholtzzentrum für Schwerionenforschung (GSI) accelerator facility in Darmstadt. It investigates dielectron emission and strangeness production in the 1-3 AGeV regime. A recent experiment series focusses on medium-modifications of light vector mesons in cold nuclear matter. In two runs, p+p and p+Nb reactions were investigated at 3.5 GeV beam energy; about 9·109 events have been registered. In contrast to other experiments the high acceptance of the HADES allows for a detailed analysis of electron pairs with low momenta relative to nuclear matter, where modifications of the spectral functions of vector mesons are predicted to be most prominent. Comparing these low momentum electron pairs to the reference measurement in the elementary p+p reaction, we find in fact a strong modification of the spectral distribution in the whole vector meson region.
