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

B Alessandro ,A Devaux,P Saturnini,J Fargeix,S Serci,M Gallio,A Guichard,L Kluberg,E Chiavassa,P Sonderegger,P Bordalo,A Musso,B Chaurand,N Willis,G Puddu,A Piccotti,P Force,C Gerschel,P Petiau,M Mac Cormick,G Dellacasa,M Masera,V Boldea,L Riccati,X Tarrago,J Castor,A De Falco,M Atayan,N De Marco,S Ramos,F Prino,D Jouan,C Quintans,L Ramello ,R Arnaldi ,C Alexa ,H Santos ,E Vercellin ,P Giubellino ,M Sitta ,M Monteno ,S Constantinescu ,M Idzik ,R Shahoyan ,P Cortese ,A Marzari‐Chiesa ,E Scomparin ,B Cheynis ,G Borges ,A Masoni ,S Diţă ,A Grigoryan ,H Gulkanyan

doi:10.1016/j.physletb.2006.03.006

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

B Alessandro , A Devaux + Show 51 more

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https://doi.org/10.1016/j.physletb.2006.03.006

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Journal: Physics Letters B	Publication Date: Mar 10, 2006
Citations: 6	License type: cc-by

Affiliation: Institut Pascal, University of Cagliari, University of Turin, Claude Bernard University Lyon 1, École Polytechnique, European Organization for Nuclear Research, Université Paris Cité, University of Eastern Piedmont Amadeo Avogadro

#Drell Yan Production #NA50 Collaboration + Show 8 more

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Abstract

The NA50 Collaboration has measured heavy-quarkonium production in p–A collisions at 450 GeV incident energy (s=29.1 GeV). We report here results on the production of the ϒ states and of high-mass Drell–Yan muon pairs (mμμ>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.