https://doi.org/10.1140/epja/i2008-10618-2
Regular Article - Experimental Physics
Dielectron spectroscopy at 1-2 AGeV with HADES⋆
1
Laboratori Nazionali del Sud, Istituto Nazionale di Fisica Nucleare, Catania, Italy
2
LIP-Laboratório de Instrumentação e Física Experimental de Partículas, Coimbra, Portugal
3
Smoluchowski Institute of Physics, Jagiellonian University of Cracow, Kraków, Poland
4
Gesellschaft für Schwerionenforschung mbH, Darmstadt, Germany
5
Institut für Strahlenphysik, Forschungszentrum Dresden-Rossendorf, Dresden, Germany
6
Joint Institute of Nuclear Research, Dubna, Russia
7
Institut für Kernphysik, Johann Wolfgang Goethe-Universität, Frankfurt, Germany
8
II.Physikalisches Institut, Justus Liebig Universität Giessen, Giessen, Germany
9
Sezione di Milano, Istituto Nazionale di Fisica Nucleare, Milano, Italy
10
Institute for Nuclear Research, Russian Academy of Science, Moscow, Russia
11
Physik Department E12, Technische Universität München, München, Germany
12
Department of Physics, University of Cyprus, Nicosia, Cyprus
13
Institut de Physique Nucléaire (UMR 8608), CNRS/IN2P3, Université Paris Sud, Orsay Cedex, France
14
Nuclear Physics Institute, Academy of Sciences of Czech Republic, Rez, Czech Republic
15
Departamento de Física de Partículas, University of Santiago de Compostela, Santiago de Compostela, Spain
16
Instituto de Física Corpuscular, Universidad de Valencia-CSIC, Valencia, Spain
* e-mail: stefano.spataro@exp2.physik.uni-giessen.de
Received:
2
April
2008
Revised:
6
June
2008
Accepted:
30
June
2008
Published online:
14
July
2008
The HADES spectrometer at GSI (Darmstadt) is investigating the e + e - pair production in p+p, p+A and A+A collisions. In this contribution we would like to highlight the physics motivations and the experiments performed so far, focusing mainly on the first results coming from 12C + 12C collisions at 1 and 2AGeV, and on preliminary results from p+p/d+p collisions at 1.25AGeV.
PACS: 25.75.-q Relativistic heavy-ion collisions – / 13.40.Hq Electromagnetic decays – / 25.75.Dw Particle and resonance production –
© SIF, Springer-Verlag Berlin Heidelberg, 2008