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pi Xi CORRELATIONS: MODEL COMPARISON AND Xi*(1530) PUZZLE
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SYSNO ASEP 0338740 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title pi Xi CORRELATIONS: MODEL COMPARISON AND Xi*(1530) PUZZLE Author(s) Chaloupka, Petr (UJF-V) RID
Šumbera, Michal (UJF-V) RID, ORCID, SAI
Malinina, L.V. (RU)Source Title Acta physica Polonica. B. - : Jagellonian University - ISSN 0587-4254
Roč. 40, č. 4 (2009), s. 1185-1192Number of pages 8 s. Language eng - English Country PL - Poland Keywords NONIDENTICAL PARTICLE CORRELATIONS ; STAR ; COLLISIONS Subject RIV BG - Nuclear, Atomic and Molecular Physics, Colliders CEZ AV0Z10480505 - UJF-V (2005-2011) UT WOS 000265677700033 Annotation Predictions of hydrodynamics-parametrized statistical hadronization model HYDJET++ are compared to the STAR Collaboration preliminary pi Xi data. We demonstrate how decay of resonances and collective flow affect shift between the average freeze-out space-time points of Xi and pi. We study how different freeze-out scenarios: single freeze-out at T-th = T-ch = 0.165 GeV; thermal freeze-out at T-th = 0.1 GeV- combined scenario when Xi and Xi* (1530) are emitted at chemical freeze-out while all other particles are emitted at the thermal freeze-out influence this shift. We study influence of the relative contribution of Xi from Xi*(1530) resonance decay on the pi Xi emission asymmetries. We show that the best description of m(t)-spectra and space-time differences is achieved within the combined scenario. Workplace Nuclear Physics Institute Contact Markéta Sommerová, sommerova@ujf.cas.cz, Tel.: 266 173 228 Year of Publishing 2010
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