Abstract
In March 2019 the HADES experiment recorded 14 billion Ag+Ag collisions at √SNN = 2.55 GeV as a part of the FAIR phase-0 physics program. With the capabilities to measure and analyze particles forming the bulk matter, namely pions, protons and light nuclei, as well as rare probes like dilepton decays of vectormesons and strange hadrons, the HADES experiment allows to study the properties of matter at high densities in great detail. In this contribution a special focus is put on the reconstruction of weakly decaying strange hadrons.
Highlights
In heavy-ion collisions at bombarding energies of a few GeV as measured by HADES, matter is compressed to densities above its groundstate density
The HADES experiment, which is schematically depicted in an expanded view in figure 1, is a multi-purpose fixed-target magnet spectrometer operated with the SIS18 accelerator at GSI, Darmstadt, Germany
In this contribution we presented first data from the HADES Ag(1.58A GeV)+Ag measurement campaign conducted as a part of the FAIR phase-0 physics program
Summary
In heavy-ion collisions at bombarding energies of a few GeV as measured by HADES, matter is compressed to densities above its groundstate density. It is heated to temperatures of 70 MeV extracted using dilepton radiation [1]. Similar densities and temperatures are expected in merging neutron stars [2, 3]. The study of heavy-ion collisions in the few GeV regime allows to deduce information on the microscopic composition and macroscopic properties like for example the equation of state of astronomic objects like merging neutron stars
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