Modeling Bose-Einstein correlations in heavy ion collisions at RHIC

• Autorzy: Bysterský M.
• Konferencja: Proceedings of the 2nd Warsaw Meeting on Particle Correlations and Resonances in Heavy Ion Collisions, 15-18 October 2003, Warsaw, Poland
• Języki publikacji: EN

Abstrakty

EN

Using UrQMD generated Au-Au collisions, two different methods of introducing Bose-Einstein (BE) correlations among final state particles are applied. New algorithm, which reassigns charges of produced particles but does not alter the original four-momenta, provided by an event generator, is compared to the standard weighting method. Correlation functions C2 in qinv and Bertsch-Pratt parametrizations are studied. While longitudinal radii are the same in both approaches, the transverse and invariant radii as well as the correlation strength ë are substantially overestimated in charge reassigning approach.

Słowa kluczowe

EN

numerical modelling; Bose-Einstein correlations; charge reassigning algorithm

• Wydawca: Institute of Nuclear Chemistry and Technology
• Czasopismo: Nukleonika
• Rocznik: 2004
• Tom: Vol. 49,suppl.2
• Strony: 37--39
• Opis fizyczny: Bibliogr. 7 poz., rys.

Twórcy

autor

Bysterský M.

• Faculty of Mathematics and Physics, Bysterský M. Bysterský Charles University in Prague, Ke Karlovu 3, 12116 Prague 2, Czech Republic and Nuclear Physics Institute ASCR, 250 68 Oež near Prague, Czech Republic, Tel.: [phone], Fax: [phone],

Bibliografia

• 1. Bass SA, Belkacem M, Bleicher M et al. (1998) Microscopic models for ultrarelativistic heavy ion collisions. Prog Part Nucl Phys 41:225−370
• 2. Bertsch GF (1989) Pion interferometry as a probe of the plasma. Nucl Phys A 498:173c−180c
• 3. Brun R, Rademakers F (1997) ROOT: An object oriented data analysis framework. Nucl Instrum Meth Phys Res A 389:81−86
• 4. Podgoretsky MI (1983) On the comparison of identical pion correlations in different reference frames. Sov J Nucl Phys 37:272−278
• 5. Pratt S (1986) Coherence and Coulomb effects on pion interferometry. Phys Rev D 33:72−79 6. Utyuzh OV, Wilk G, Włodarczyk Z (2001) Numerical modeling of Bose-Einstein correlations. Phys Lett B 522:273−279
• 7. Wiedemann UA, Heinz U (1999) Particle interferometry for relativistic heavy-ion collisions. Phys Rep 319:145−23