Výsledky vyhľadávania
Názov Resonances from a hadronic fireball Aut.údaje Evgeni E. Kolomeitsev, Peter Filip Autor Kolomeitsev Evgeni E. 1970- (50%) UMBFP06 - Katedra fyziky
Spoluautori Filip Peter (50%)
Zdroj.dok. Journal of Physics G: Nuclear and Particle Physics. Vol. 28, no. 7 (2002), pp. 1697-1705. - Bristol : IOP Publishing, 2002 Kľúč.slová jadrová fyzika heavy ion collisions Phi-mesons particles Jazyk dok. angličtina Krajina Veľká Británia Systematika 539.1 Anotácia The production of phi(1020), Lambda*(1520) and (K*) over bar (892) resonances at the final stage of a heavy-ion collision is considered. It is shown that original momentum distributions and abundance of resonances formed during the process of heavy-ion collisions may differ significantly from their measured spectra and yields. The reconstruction probability of resonances decaying inside the fireball can be strongly suppressed because of interactions of their hadronic decay products in the fireball medium. We investigate the dependence of the degree of suppression on the fireball size, dynamics and the resonance decay width in the medium. Quantitative results are presented for lead-lead collisions at 158 GeV SPS beam energy. Kategória publikačnej činnosti ADC Číslo archívnej kópie 26394 Katal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Báza dát xpca - PUBLIKAČNÁ ČINNOSŤ Odkazy PERIODIKÁ-Súborný záznam periodika 
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Názov Phi mesons from a hadronic fireball Aut.údaje Peter Filip, Evgeni E. Kolomeitsev Autor Filip Peter (50%)
Spoluautori Kolomeitsev Evgeni E. 1970- (50%) UMBFP06 - Katedra fyziky
Zdroj.dok. Physical Review C. Vol. 64, no. 5 (2001), pp. 4905-4905. - Maryland : American Physical Society, 2001 Kľúč.slová heavy ion collisions nuclear matter dense matter Jazyk dok. angličtina Krajina Spojené štáty Systematika 539.1 Anotácia Production of phi mesons is considered in the course of heavy-ion collisions at SPS energies. We investigate the possible difference in momentum distributions of phi mesons measured via their leptonic (mu (+),mu (-)) and hadronic (K+ K-) decays. Rescattering of secondary kaons in the dense hadron gas together with the influence of in-medium kaon potential can lead to a relative decrease of the phi yield observed in the hadronic channel. We analyze how the in-medium modifications of meson properties affect apparent, reconstructed momentum distributions of phi mesons. Quantitative results are presented for central Pb+Pb collisions at E-beam = 158 GeV/nucleon. Kategória publikačnej činnosti ADC Číslo archívnej kópie 26396 Katal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Báza dát xpca - PUBLIKAČNÁ ČINNOSŤ Odkazy PERIODIKÁ-Súborný záznam periodika nerozpoznaný