Bottomonium and Drell-Yan production in p-A collisions at 450 GeV

B. Alessandro, C. Alexa, R. Arnaldi, M. Atayan, S. Beolè, V. Boldea, P. Bordalo, G. Borges, J. Castor, B. Chaurand, B. Cheynis, E. Chiavassa, C. Cicalò, M. P. Comets, S. Constantinescu, P. Cortese, A. De Falco, N. De Marco, G. Dellacasa, A. DevauxS. Dita, J. Fargeix, P. Force, M. Gallio, C. Gerschel, P. Giubellino, M. B. Golubeva, A. Grigoryan, J. Y. Grossiord, F. F. Guber, A. Guichard, H. Gulkanyan, M. Idzik, D. Jouan, T. L. Karavicheva, L. Kluberg, A. B. Kurepin, Y. Le Bornec, C. Lourenço, M. Mac Cormick, A. Marzari-Chiesa, M. Masera, A. Masoni, M. Monteno, A. Musso, P. Petiau, A. Piccotti, J. R. Pizzi, F. Prino, G. Puddu, C. Quintans, L. Ramello, S. Ramos, L. Riccati, H. Santos, P. Saturnini, E. Scomparin, S. Serci, R. Shahoyan, M. Sitta, P. Sonderegger, X. Tarrago, N. S. Topilskaya, G. L. Usai, E. Vercellin, N. Willis

Risultato della ricerca: Contributo su rivistaArticolo in rivistapeer review

Abstract

The NA50 Collaboration has measured heavy-quarkonium production in p-A collisions at 450 GeV incident energy ( sqrt(s) = 29.1   GeV). We report here results on the production of the Υ{hooked} states and of high-mass Drell-Yan muon pairs ( mμ μ > 6   GeV / c2). The cross-section at midrapidity and the A-dependence of the measured yields are determined and compared with the results of other fixed-target experiments and with the available theoretical estimates. Finally, we also address some issues concerning the transverse momentum distributions of the measured dimuons.

Lingua originaleInglese
pagine (da-a)260-269
Numero di pagine10
RivistaPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume635
Numero di pubblicazione5-6
DOI
Stato di pubblicazionePubblicato - 20 apr 2006

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