Inclusive reconstruction of hadron resonances in elementary and heavy-ion collisions with HADES

0539938 - ÚJF 2021 RIV FR eng C - Konferenční příspěvek (zahraniční konf.)
Kornakov, G.
Inclusive reconstruction of hadron resonances in elementary and heavy-ion collisions with HADES.
EPJ Web of Conference. Vol. 130. Les Ulis: E D P Sciences, 2016, č. článku 07011. ISSN 2100-014X.
[14th International Workshop on Meson Production, Properties and Interaction (MESON 2016). Krakow (PL), 02.06.2016-07.06.2016]
Výzkumná infrastruktura: FAIR-CZ - 90049
Klíčová slova: HADES * QCD matter
Obor OECD: Particles and field physics

The unambiguous identification of hadron modifications in hot and dense QCD matter is one of the important goals in nuclear physics. In the regime of 1 - 2 GeV kinetic energy per nucleon, HADES has measured rare and penetrating probes in elementary and heavy-ion collisions. The main creation mechanism of mesons is the excitation and decay of baryonic resonances throughout the fireball evolution. The reconstruction of short-lived (approximate to 1 fm/c) resonance states through their decay products is notoriously difficult. We have developed a new iterative algorithm, which builds the best hypothesis of signal and background by distortion of individual particle properties. This allows to extract signals with signal-to-background ratios of < 1%.
Trvalý link: http://hdl.handle.net/11104/0317624