J/$\psi$ production in indium-indium collisions at SPS energies
Philippe Pillot
(1)
,
R. Arnaldi
,
R. Avebeck
,
K. Banicz
,
J. Castor
(2)
,
B. Chaurand
(3)
,
C. Cicalo
,
A. Colla
,
P. Cortese
,
S. Damjanovic
,
A. David
,
A. de Falco
,
A. Devaux
(2)
,
A. Drees
,
L. Ducroux
(1)
,
H. En'Yo
,
A. Ferretti
,
M. Floris
,
P. Force
(2)
,
N. Guettet
(2)
,
A. Guichard
(1)
,
H. Gulkanian
,
J. Heuser
,
M. Keil
,
L. Kluberg
(3)
,
J. Lozano
,
C. Lourenço
,
F. Manso
(2)
,
A. Masoni
,
P. Martins
,
A. Neves
,
H. Ohnishi
,
C. Oppedisano
,
P. Parracho
,
G. Puddu
,
E. Radermacher
,
P. Ramalhete
,
P. Rosinsky
,
E. Scomparin
,
J. Seixas
,
S. Serci
,
R. Shahoyan
,
P. Sonderegger
,
H.J. Specht
,
R. Tieulent
(1)
,
G. Usai
,
R. Veenhof
,
H.K. Wörhri
Philippe Pillot
- Function : Author
- PersonId : 175815
- IdHAL : ppillot
- ORCID : 0000-0002-9067-0803
R. Arnaldi
- Function : Author
R. Avebeck
- Function : Author
K. Banicz
- Function : Author
C. Cicalo
- Function : Author
A. Colla
- Function : Author
P. Cortese
- Function : Author
S. Damjanovic
- Function : Author
A. David
- Function : Author
A. de Falco
- Function : Author
A. Drees
- Function : Author
H. En'Yo
- Function : Author
A. Ferretti
- Function : Author
M. Floris
- Function : Author
H. Gulkanian
- Function : Author
J. Heuser
- Function : Author
M. Keil
- Function : Author
J. Lozano
- Function : Author
C. Lourenço
- Function : Author
A. Masoni
- Function : Author
P. Martins
- Function : Author
- PersonId : 878076
- IdHAL : martins-philippe
- ORCID : 0000-0001-9497-4890
A. Neves
- Function : Author
H. Ohnishi
- Function : Author
C. Oppedisano
- Function : Author
P. Parracho
- 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
G. Usai
- Function : Author
R. Veenhof
- Function : Author
H.K. Wörhri
- Function : Author
Abstract
The NA60 experiment collected data on dimuon production in indium-indium collisions at 158 GeV/c per incident nucleon, in year 2003, to contribute to the clarification of several questions raised by previous experiments studying high-energy heavy-ion physics at the CERN SPS in search of the quark gluon plasma. Among these previous results stands the observation, by NA50, that the production yield of J/psi mesons is suppressed in central Pb-Pb collisions beyond the normal nuclear absorption defined by proton-nucleus data. By comparing the centrality dependence of the suppression pattern between different colliding systems, S-U, Pb-Pb and In-In, we should be able to identify the corresponding scaling variable, and the physics mechanism driving the suppression. In this paper, we will present the ratio of J/psi and Drell-Yan production cross-sections in indium-indium collisions, in three centrality bins, and how these values compare to previous measurements. We will also present a study of the transverse momentum distributions of the J/psi mesons, in seven centrality bins.