Electron-positron pair production in nuclear matter - first data from HADES

0185633 - UJF-V 20020145 CZ eng C - Konferenční příspěvek (zahraniční konf.)
Tlustý, Pavel - Kugler, Andrej - Pleskač, Radek - Wagner, Vladimír - Suk, M. - Hlaváč, S. - Žovinec, D.
Electron-positron pair production in nuclear matter - first data from HADES.
Konference českých a slovenských fyziků /14./. Plzeň: Západočeská universita, 2002, s. 133-149l. ISBN 80-7082-907-9.
[Konference českých a slovenských fyziků /14./. Plzeň (CZ), 09.09.2002-12.09.2002]
Grant CEP: GA ČR GA202/00/1668
Klíčová slova: electron positron pair * nuclear matter
Kód oboru RIV: BG - Jaderná, atomová a mol. fyzika, urychlovače

Study of hadron properties inside nuclear matter at normal and high temperatures and baryon densities represents one of important topics of the present nuclear research. Several models predict change of effective masses and widths of hadrons due to the chiral symmetry restoration at extreme conditions of the nuclear matter. Existing experimental data do not allow unambiguous conclusions with respect to medium modifications due to the limited invariant mass resolution and separation. To improve and extend the existing experimental evidence the new High Acceptance DiElectron Spectrometer HADES was build at GSI, Darmstadt.
Trvalý link: http://hdl.handle.net/11104/0082020