Anomalous J / psi suppression in Pb + Pb collisions at 158-A-GeV/c - INSPIRE

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Anomalous J / psi suppression in Pb + Pb collisions at 158-A-GeV/c

NA50

Collaboration

•

Michel Gonin
(
- Ecole Polytechnique
)

1996

Part of Quark matter '96. Proceedings, 12th International Conference on Ultrarelativistic Nucleus Nucleus Collisions, Heidelberg, Germany, May 20-24, 1996

Published in:

Nucl.Phys.A 610 (1996) 404C-417C

Contribution to:

12th International Conference on Ultra-Relativistic Nucleus-Nucleus Collisions (Quark Matter 96)

DOI:

10.1016/S0375-9474(96)00373-9

Experiments:

CERN-NA-050

View in:

Nuclear Science References

reference search183 citations

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Abstract: (Elsevier)

Cross sections for J ψ,ψ′ and Drell-Yan production in Pb+Pb collisions at 158×A GeV/c are presented and compared with results obtained by the NA38 and NA51 collaborations. The Pb+Pb data have been collected by the NA50 collaboration using the NA38 dimuon spectrometer. The Drell-Yan mechanism is found to scale as (A projectile · B target ) in p+B target and A projectile + B target collisions including Pb+Pb collisions. Regarding J ψ , an anomalous suppression is observed in Pb+Pb collisions with respect to the suppression observed in p+B target , O+B target and S+U collisions. The cross section ratios ψ′ ( J ψ ) are similar in Pb+Pb and S+U collisions.

talk: Heidelberg 1996/05/20
nucleus nucleus: nuclear reaction
lead
J/psi(3100): production
production: J/psi(3100)
psi(3685): production
production: psi(3685)
muon: pair production
pair production: muon
Drell-Yan process

References(27)

Figures(0)

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