Data di Pubblicazione:
2010
Abstract:
We report on high acceptance di-electron spectrometer (HADES)
measurements of strange hadrons in the collision systems Ar(1.756 AGeV)+KCl and p+p at 3.5 GeV. Comparisons of K0
s transverse mass and rapidity spectra to IQMD transport model calculations give a strong hint to a repulsive kaon–nucleon potential. The effect of the potential shows up strongest at very
low transverse momenta, which were measured by HADES with high statistics. Statistical model fits show a fair agreement to the particle yields measured in the heavy-ion data, apart from the Xi− yield which is off by more than an order of magnitude. Furthermore, first results from the Sigma(138 )+ reconstruction in p+p reactions are presented, showing an excellent agreement with published data.
Tipologia CRIS:
03A-Articolo su Rivista
Elenco autori:
G Agakishiev; A Balanda; D Belver; A Belyaev; A Blanco; M B¨ohmer; J L Boyard; P Cabanelas; E Castro; S Chernenko; J D´ıaz; A Dybczak; E Epple; L Fabbietti; O Fateev; P Finocchiaro; P Fonte; J Friese; I Fr¨ohlich; T Galatyuk; J A Garz´on; A Gil; M Golubeva; D Gonz´alez-D´ıaz; F Guber; T Hennino; R Holzmann; P Huck; A Ierusalimov; I Iori; A Ivashkin; M Jurkovic; B K¨ampfer; T Karavicheva; I Koenig; W Koenig; B W Kolb;
A Kopp; G Korcyl; G K Kornakov; R Kotte; A Kozuch; A Kr´asa; F Krizek; R Kr¨ucken; H Kuc; W K¨uhn; A Kugler; A Kurepin; A Kurilkin; P Kurilkin; P Kählitz; V Ladygin; J Lamas-Valverde; S Lang; K Lapidus; T Liu; L Lopes; M Lorenz; L Maier; A Mangiarotti; J Markert; V Metag; B Michalska; J Michel; C M¨untz; L Naumann; Y C Pachmayer; M Palka; Y Parpottas; V Pechenov; O Pechenova; J Pietraszko; W Przygoda; B Ramstein; A Reshetin; J Roskoss; A Rustamov; A Sadovsky; P Salabura; A Schmah; J Siebenson;
Yu G Sobolev; S Spataro; H Str¨obele; J Stroth; C Sturm; M Sudol;
A Tarantola; K Teilab; P Tlusty; M Traxler; R Trebacz; H Tsertos; T Vasiliev; V Wagner; M Weber; J W¨ ustenfeld; S Yurevich; Y Zanevsky
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