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1.
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Experimental Status Of $J/\psi$ Suppression
/ Kluberg, L (Paris U., VI-VII ; Ecole Polytechnique) ; Abreu, M C (LIP, Lisbon) ; Alessandro, B (Turin U. ; INFN, Turin) ; Alexa, C (Bucharest U.) ; Arnaldi, R (Turin U. ; INFN, Turin) ; Astruc, J (Orsay, IPN) ; Atayan, M (Yerevan Phys. Inst.) ; Baglin, C (Annecy, LAPP) ; Baldit, A (Clermont-Ferrand U.) ; Bedjidian, M (Lyon, IPN) et al.
The most recent results obtained by experiment NA50 show that the $J /\psi$ cross-section per nucleon-nucleon collision in semi-peripheral Pb-Pb reactions is "normally" suppressed in the sense that it follows the trend already observed from p-p and up to the most central S-U reactions. A clear change of behaviour is observed for more central Pb-Pb collisions which could be due to the transition of normal nuclear matter to its predicted Quark-Gluon Plasma state
Hanoi : The Gioi, 2001 - 6 p.
- Published in : , pp. 221-226
Fulltext: PDF;
In : 34th Rencontres de Moriond, Les Arcs, France, 20 - 27 Mar 1999, pp.221-226
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2.
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Directed and elliptic flow in ultrarelativistic heavy ion collisions
/ Chevrot, I (Clermont-Ferrand U.) ; Abreu, M C (LIP, Lisbon) ; Alessandro, B (Turin U. ; INFN, Turin) ; Alexa, C (Bucharest, IFIN-HH) ; Arnaldi, R (Turin U. ; INFN, Turin) ; Astruc, J (Orsay, IPN) ; Atayan, M (Yerevan Phys. Inst.) ; Baglin, C (Annecy, LAPP) ; Baldit, A (Clermont-Ferrand U.) ; Barriere, C (Clermont-Ferrand U.) et al.
/NA38 ; NA50
1998 - 6 p.
- Published in : (1998) , pp. 559-564
fulltext: PDF;
In : 33rd Rencontres de Moriond, Les Arcs, France, 21 - 28 Mar 1998, pp.559-564
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3.
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Centrality dependece of the $ J/\psi$ suppression in ultrarelativistic Pb-Pb collisions
/ Scomparin, Enrico (Turin U. ; INFN, Turin) ; Abreu, M C (LIP, Lisbon) ; Alessandro, B (Turin U. ; INFN, Turin) ; Alexa, C (Bucharest, IFIN-HH) ; Arnaldi, R (Turin U. ; INFN, Turin) ; Atayan, M (Yerevan Phys. Inst.) ; Baglin, C (Annecy, LAPP) ; Baldit, A (Clermont-Ferrand U.) ; Bedjidian, M (Lyon, IPN) ; Beole, S (Turin U. ; INFN, Turin) et al.
/NA50
2000 - 4 p.
- Published in : , pp. 395-398
fulltext: PDF;
In : 35th Rencontres de Moriond, Les Arcs, France, 18 - 25 Mar 2000, pp.395-398
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4.
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5.
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6.
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7.
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The J/$\psi$ normal nuclear absorption
/ NA50 Collaboration
We present a new determination of the ratio of cross-sections ($J/\psi$) /DY as expected for nucleus-nucleus reactions if J/psi would only be normally absorbed by nuclear matter. This anticipated behaviour is based on proton-nucleus data exclusively, and compared, as a function of centrality, with updated S-U results from experiment NA38 and with the most recent Pb-Pb results from experiment NA50..
2005
- Published in : Eur. Phys. J. C 43 (2005) 161-5
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8.
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Transverse momentum dependence of charmonium suppression in Pb-Pb collisions at the CERN SPS
/ Alessandro, Bruno ; Alexa, C ; Arnaldi, R ; Atayan, M ; Beolè, S ; Boldea, V ; Bordalo, P ; Borges, G ; Castanier, C ; Castor, J et al.
Charmonium suppression in Pb-Pb collisions at 158 GeV/c per nucleon is investigated in detail with the study of the transverse momentum distributions of J/ psi as a function of the centrality of the collision. It is shown that the observed J/ psi suppression in Pb-Pb interactions is particularly significant mainly at low transverse momentum where it strongly depends on centrality. [...]
2005
- Published in : Nucl. Phys. A 749 (2005) 243c-250c
In : 18th Nuclear Physics Division Conference on Phase Transitions In Strongly Interacting Matter, Prague, Czech Republic, 23 - 29 Aug 2004, pp.243c-250c
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9.
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First results of the NA60 experiment at the CERN SPS
/ Borer, K ; Arnaldi, R ; Banicz, K ; Buytaert, J ; Castor, J ; Chaurand, B ; Chen, W ; Cheynis, B ; Cicalò, C ; Colla, A et al.
The NA60 experiment at the CERN SPS studies dimuon production in proton and heavy ion collisions. Its silicon pixel vertex telescope allows tracking of muon pairs in the vertex region, complementing the information from the muon spectrometer, and improving the mass resolution and signal-to-noise ratio. [...]
2005
- Published in : Nucl. Phys. A 749 (2005) 251c-256c
In : 18th Nuclear Physics Division Conference on Phase Transitions In Strongly Interacting Matter, Prague, Czech Republic, 23 - 29 Aug 2004, pp.251c-256c
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