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The search for the quark-gluon plasma study of production of charmed bound states in Pb-Pb collisions at 158 GeV/nucleon.

M.C. Abreu B. Alessandro C. Alexa R. Arnaldi J. Astruc M. Atayan C. Baglin 1 A. Baldit 2 M. Bedjidian 3 F. Bellaiche 3 S. Beole V. Boldea P. Bordalo A. Bussiere 1 V. Capony 1 L. Casagrande J. Castor 2 T. Chambon 2 B. Chaurand I. Chevrot 2 B. Cheynis 3 E. Chiavassa C. Cicalo M.P. Comets 4 S. Constantinescu J. Cruz A. de Falco N. de Marco G. Dellacasa A. Devaux 2 S. Dita O. Drapier 3 B. Espagnon 2 J. Fargeix 2 S.N. Filippov F. Fleuret P. Force 2 M. Gallio Y.K. Gavrilov C. Gerschel 4 P. Giubellino M.B. Golubeva M. Gonin A. Grigorian J.-Y. Grossiord 5 F.F. Guber A. Guichard 3 H. Gulkanyan R. Hakobyan R. Haroutunian 3 M. Idzik D. Jouan 4 T.L. Karavitcheva L. Kluberg A.B. Kurepin Y. Le Bornec 4 C. Lourenco M. Mac Cormick 4 P. Macciotta A. Marzari-Chiesa M. Masera A. Masoni S. Mehrabian S. Mourgues 2 A. Musso F. Ohlsson-Malek 3 P. Petiau A. Piccotti J.-R. Pizzi 3 W.L. Prado da Silva G. Puddu C. Quintans C. Racca L. Ramello S. Ramos P. Rato-Mendes L. Riccati A. Romana S. Sartori P. Saturnini 2 E. Scomparin S. Serci R. Shahoyan S. Silva C. Soave P. Sondereger X. Tarrago 4 P. Temnikov N.S. Topilskaya G.L. Usai C. Vale E. Vercellin N. Willis 4 
Abstract : The NA50 Collaboration has studied the production of dimuons originating from J/psi, psi' and Drell-Yan virtual photons in Pb-Pb collisions at 158 GeV/nucleon. The J/psi production differs from what is expected when extrapolating from previously studied colliding systems. Going from peripheral to central collisions, the J/psi suppression presents a sudden and clear drop-off which we refer here as an "anomalous suppression".
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Contributor : Michèle Chadelas Connect in order to contact the contributor
Submitted on : Wednesday, March 22, 2000 - 3:30:23 PM
Last modification on : Sunday, June 26, 2022 - 11:42:30 AM


  • HAL Id : in2p3-00004260, version 1


M.C. Abreu, B. Alessandro, C. Alexa, R. Arnaldi, J. Astruc, et al.. The search for the quark-gluon plasma study of production of charmed bound states in Pb-Pb collisions at 158 GeV/nucleon.. Rencontres de Moriond. 33, Mar 1998, Les Arcs, France. pp.539-544. ⟨in2p3-00004260⟩



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