Abstract
The HADES (High Acceptance Di-Electron Spectrometer) is a tool designed for lepton pair (e+e-) spectroscopy in pion, proton and heavy ion induced reactions in the 1-2 A GeV energy range. One of the goals of the HADES experiment is to study in-medium modifications of hadron properties like effective masses, decay widths, electromagnetic form factors etc. Such effects can be probed with vector mesons (ρ, ω, Φ) decaying into e +e- channel. The identification of vector mesons by means of a HADES spectrometer is based on invariant mass reconstruction of e +e- pairs. The combined information from all spectrometer sub-detectors is used to reconstruct the di-lepton signal. The recent results from 2.2 GeV p + p, 1 A GeV and 2 A GeV C+C experiments are presented.
Original language | English |
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Pages (from-to) | 139-151 |
Number of pages | 13 |
Journal | Acta Physica Polonica B |
Volume | 37 |
Issue number | 1 |
State | Published - Jan 2006 |
Event | XXIX Mazurian Lakes Conference on Physics - Piaski, Poland Duration: 30 Aug 2005 → 6 Sep 2005 |