J/$\psi$ production in Indium-Indium collisions at 158 GeV/nucleon

R. Arnaldi; K. Banicz; B. Chaurand; C. Cicalò; A. Colla; P. Cortese; S. Damjanovic; A. David; A. de Falco; A. Devaux; L. Ducroux; H. En'Yo; A. Ferretti; M. Floris; A. Förster; P. Force; N. Guettet; A. Guichard; H. Gulkanyan; J.M. Heuser; M. Keil; L. Kluberg; C. Lourenço; J. Lozano; F. Manso; P. Martins; A. Masoni; A. Neves; H. Ohnishi; C. Oppedisano; P. Parracho; Philippe Pillot; T. Poghosyan; G. Puddu; E. Radermacher; P. Ramalhete; P. Rosinsky; E. Scomparin; J. Seixas; S. Serci; R. Shahoyan; P. Sonderegger; H.J. Specht; R. Tieulent; G. Usai; R. Veenhof; H. Wöhri

doi:10.1103/PhysRevLett.99.132302

Journal Articles Physical Review Letters Year : 2007

J/$\psi$ production in Indium-Indium collisions at 158 GeV/nucleon

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R. Arnaldi

Function : Author

K. Banicz

Function : Author

B. Chaurand

Function : Author

Laboratoire Leprince-Ringuet

C. Cicalò

Function : Author

A. Colla

Function : Author

P. Cortese

Function : Author

S. Damjanovic

Function : Author

A. David

Function : Author

A. de Falco

Function : Author

A. Devaux

Function : Author

Laboratoire de Physique Corpusculaire - Clermont-Ferrand

L. Ducroux

Function : Author

Institut de Physique Nucléaire de Lyon

H. En'Yo

Function : Author

A. Ferretti

Function : Author

M. Floris

Function : Author

A. Förster

Function : Author

P. Force

Function : Author

Laboratoire de Physique Corpusculaire - Clermont-Ferrand

N. Guettet

Function : Author

A. Guichard

Function : Author

Institut de Physique Nucléaire de Lyon

H. Gulkanyan

Function : Author

J.M. Heuser

Function : Author

M. Keil

Function : Author

L. Kluberg

Function : Author

Laboratoire Leprince-Ringuet

C. Lourenço

Function : Author

J. Lozano

Function : Author

F. Manso

Function : Author

Laboratoire de Physique Corpusculaire - Clermont-Ferrand

P. Martins

Function : Author
PersonId : 878076
IdHAL : martins-philippe
ORCID : 0000-0001-9497-4890

A. Masoni

Function : Author

A. Neves

Function : Author

H. Ohnishi

Function : Author

C. Oppedisano

Function : Author

P. Parracho

Function : Author

Philippe Pillot

Function : Author
PersonId : 175815
IdHAL : ppillot
ORCID : 0000-0002-9067-0803

Institut de Physique Nucléaire de Lyon

T. Poghosyan

Function : Author

G. Puddu

Function : Author

E. Radermacher

Function : Author

P. Ramalhete

Function : Author

P. Rosinsky

Function : Author

E. Scomparin

Function : Author

J. Seixas

Function : Author

S. Serci

Function : Author

R. Shahoyan

Function : Author

P. Sonderegger

Function : Author

H.J. Specht

Function : Author

R. Tieulent

Function : Author

Institut de Physique Nucléaire de Lyon

G. Usai

Function : Author

R. Veenhof

Function : Author

H. Wöhri

Function : Author

Abstract

The NA60 experiment studies muon pair production at the CERN SPS. In this letter we report on a precision measurement of J/psi in In-In collisions. We have studied the J/psi centrality distribution, and we have compared it with the one expected if absorption in cold nuclear matter were the only active suppression mechanism. For collisions involving more than ~80 participant nucleons, we find that an extra suppression is present. This result is in qualitative agreement with previous Pb-Pb measurements by the NA50 experiment, but no theoretical explanation is presently able to coherently describe both results.

Domains

Nuclear Experiment [nucl-ex]

Sylvie Flores : Connect in order to contact the contributor

https://in2p3.hal.science/in2p3-00176311

Submitted on : Wednesday, October 3, 2007-11:10:07 AM

Last modification on : Friday, August 23, 2024-9:32:04 AM

Dates and versions

in2p3-00176311 , version 1 (03-10-2007)

Identifiers

HAL Id : in2p3-00176311 , version 1
ARXIV : 0706.4361
DOI : 10.1103/PhysRevLett.99.132302

Cite

R. Arnaldi, K. Banicz, B. Chaurand, C. Cicalò, A. Colla, et al.. J/$\psi$ production in Indium-Indium collisions at 158 GeV/nucleon. Physical Review Letters, 2007, 99, pp.132302. ⟨10.1103/PhysRevLett.99.132302⟩. ⟨in2p3-00176311⟩

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J/$\psi$ production in Indium-Indium collisions at 158 GeV/nucleon

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