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Titolo:
J PSI SUPPRESSION
Autore:
GIUBELLINO P;
Indirizzi:
UNIV TURIN I-10124 TURIN ITALY IST NAZL FIS NUCL I-10125 TURIN ITALY
Titolo Testata:
Nuclear physics. B, Proceedings supplement
, volume: 71, anno: 1999,
pagine: 279 - 286
SICI:
0920-5632(1999)71:<279:>2.0.ZU;2-2
Fonte:
ISI
Lingua:
ENG
Soggetto:
PB-PB INTERACTIONS; CROSS-SECTIONS; 158 GEV/C; NUCLEON;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
11
Recensione:
Indirizzi per estratti:
Citazione:
P. Giubellino, "J PSI SUPPRESSION", Nuclear physics. B, Proceedings supplement, 71, 1999, pp. 279-286

Abstract

The cross section for J/Psi production in Pb-Pb interactions at 158 GeV per nucleon is measured at the CERN SPS by the NA50 experiment. Thefinal results from the 1995 run are presented here together with preliminary ones from the high-statistics 1996 run. An anomalous J/Psi suppression is observed in Pb-Pb collisions as compared to extrapolationsof the previous results obtained by the NA38 experiment with proton and lighter ion beams. The results of the two runs are in good agreement. The results from the 1996 run allow the study of the onset of the anomalous suppression within the same set of data, showing evidence of a sharp change of behaviour around a value of neutral transverse energy, as measured by our electromagnetic calorimeter, of about 50 GeV.

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Documento generato il 30/11/20 alle ore 19:58:52