phi and rho + omega vector-mesons produced in lead-induced collisions

C Quintans, Abreu MC, B Alessandro, C Alexa, R Arnaldi, M Atayan, C Baglin, A Baldit, M Bedjidian, S Beol?, V Boldea, P Bordalo, Borenstein SR, G Borges, A Bussi?re, L Capelli, J Castor, C Castanier, B Chaurand, B CheynisE Chiavassa, C Cical??, T Claudino, Comets MP, N Constans, S Constantinescu, Pietro CORTESE, J Cruz, Falco A De, G Dellacasa, Marco N De, A Devaux, S Dita, O Drapier, B Espagnon, J Fargeix, P Force, M Gallio, Gavrilov YK, C Gerschel, P Giubellino, Golubeva MB, M Gonin, Grigorian AA, S Grigorian, Grossiord JY, Guber FF, A Guichard, H Gulkanyan, R Hakobyan, R Haroutunian, M Idzik, D Jouan, Karavitcheva TL, L Kluberg, Kurepin AB, Bornec Y Le, C Louren?o, P Macciotta, Cormick M Mac, Chiesa A Marzari, M Masera, A Masoni, M Monteno, A Musso, P Petiau, A Piccotti, Pizzi JR, Prado da Silva WL, F Prino, G Puddu, Luciano RAMELLO, S Ramos, Mendes P Rato, L Riccati, A Romana, H Santos, P Saturnini, E Scalas, E Scomparin, S Serci, R Shahoyan, F Sigaudo, S Silva, Mario SITTA, P Sonderegger, X Tarrago, Topilskaya NS, Usai GL, E Vercellin, L Villatte, N. Willis

Risultato della ricerca: Contributo su rivistaArticolo in rivistapeer review

Abstract

The experiment NA50 studies the strangeness production by means of the BR mu mu sigma_phi/(BR mu mu sigma_rho + BR mu mu sigma_omega) cross-sections ratio in relativistic heavy ion collisions with respect to proton and light ion collisions. New results for Pb+Pb interactions at 158 A GeV/c are presented (1998 data) and analysed with a different method. The BR mu mu sigma_phi/(BR mu mu sigma_phi + BR mu mu sigma_omega) ratio shows an increase with the number of participants, in agreement with previous results. The inverse slope parameter extracted from the Mr universal scaling is also studied.
Lingua originaleInglese
pagine (da-a)1809-1817
Numero di pagine9
RivistaJournal of Physics G: Nuclear and Particle Physics
Volume28
Numero di pubblicazione7
DOI
Stato di pubblicazionePubblicato - 2002

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