| Article | |
| Report number | arXiv:1004.5523 |
| Title | J/$\psi$ production in proton-nucleus collisions at 158 and 400 GeV |
| Author(s) |
Arnaldi, R (INFN, Turin) ; Banicz, K. (INFN, Turin) ; Castor, J. (INFN, Turin) ; Chaurand, B. (INFN, Turin) ; Chen, W. (INFN, Turin) ; Cicalo, C. (INFN, Turin) ; Colla, A. (INFN, Turin) ; Cortese, P. (INFN, Turin) ; Damjanovic, S. (INFN, Turin) ; David, A. (INFN, Turin) ; de Falco, A. (INFN, Turin) ; Devaux, A. (INFN, Turin) ; En'yo, H. (INFN, Turin) ; Fargeix, J. (INFN, Turin) ; Ferretti, A. (INFN, Turin) ; Floris, M. (INFN, Turin) ; Foerster, A. (INFN, Turin) ; Force, P. (INFN, Turin) ; Guettet, N. (INFN, Turin) ; Guichard, A. (INFN, Turin) ; Gulkanian, H. (INFN, Turin) ; Heuser, J.M. (INFN, Turin) ; Keil, M. (INFN, Turin) ; Li, Z. (INFN, Turin) ; Lourenco, C. (INFN, Turin) ; Lozano, J. (INFN, Turin) ; Manso, F. (INFN, Turin) ; Martins, P. (INFN, Turin) ; Masoni, A. (INFN, Turin) ; Neves, A. (INFN, Turin) ; Ohnishi, H. (INFN, Turin) ; Oppedisano, C. (INFN, Turin) ; Parracho, P. (INFN, Turin) ; Pillot, P. (INFN, Turin) ; Poghosyan, T. (INFN, Turin) ; Puddu, G. (INFN, Turin) ; Radermacher, E. (INFN, Turin) ; Ramalhete, P. (INFN, Turin) ; Rosinsky, P. (INFN, Turin) ; Scomparin, E. (INFN, Turin) ; Seixas, J. (INFN, Turin) ; Serci, S. (INFN, Turin) ; Shahoyan, R. (INFN, Turin) ; Sonderegger, P. (INFN, Turin) ; Specht, H.J. (INFN, Turin) ; Uras, A. (INFN, Turin) ; Usai, G. (INFN, Turin) ; Veenhof, R. (INFN, Turin) ; Woehri, H.K. (INFN, Turin) ; Banicz, K (Heidelberg U. ; CERN) ; Castor, J (Clermont-Ferrand U.) ; Chaurand, B (Ecole Polytechnique) ; Chen, W (Brookhaven) ; Cical, C (INFN, Cagliari) ; Colla, A (INFN, Turin ; Turin U.) ; Cortese, P (INFN, Turin ; Turin U.) ; Damjanovic, S (Heidelberg U. ; CERN) ; David, A (Lisbon, IST ; CERN) ; de Falco, A (Cagliari U. ; INFN, Cagliari) ; Devaux, A (Clermont-Ferrand U.) ; Ducroux, L (Lyon, IPN) ; En'yo, H (RIKEN (main) ; CERN) ; Fargeix, J (Clermont-Ferrand U.) ; Ferretti, A (INFN, Turin ; Turin U.) ; Floris, M (Cagliari U. ; INFN, Cagliari) ; Frster, A (CERN) ; Force, P (Clermont-Ferrand U.) ; Guettet, N (Clermont-Ferrand U. ; CERN) ; Guichard, A (Lyon, IPN) ; Gulkanian, H (Yerevan Phys. Inst.) ; Heuser, J M (RIKEN (main)) ; Keil, M (Lisbon, IST ; CERN) ; Li, Z (Brookhaven) ; Lourenco, C (CERN) ; Lozano, J (Lisbon, IST) ; Manso, F (Clermont-Ferrand U.) ; Martins, P (Lisbon, IST ; CERN) ; Masoni, A (INFN, Cagliari) ; Neves, A (Lisbon, IST) ; Ohnishi, H (RIKEN (main)) ; Oppedisano, C (INFN, Turin) ; Parracho, P (Lisbon, IST) ; Pillot, P (Lyon, IPN) ; Poghosyan, T (Yerevan Phys. Inst.) ; Puddu, G (Cagliari U. ; INFN, Cagliari) ; Radermacher, E (CERN) ; Ramalhete, P (Lisbon, IST ; CERN) ; Rosinsky, P (CERN) ; Seixas, J (Lisbon, IST) ; Serci, S (Cagliari U. ; INFN, Cagliari) ; Shahoyan, R (Lisbon, IST ; CERN) ; Sonderegger, P (Lisbon, IST) ; Specht, H J (Heidelberg U.) ; Tieulent, R (Lyon, IPN) ; Uras, A (Cagliari U. ; INFN, Cagliari) ; Usai, G (Cagliari U. ; INFN, Cagliari) ; Veenhof, R (Lisbon, IST) ; Woehri, H K (Lisbon, IST) |
| Publication | 2012-01-05 |
| Imprint | 03 May 2010 |
| Number of pages | 5 |
| Note | Comments: NA60 Collaboration, 5 pages, 3 figures, submitted to Phys. Rev. Lett. NA60 Collaboration, accepted for publication by Phys. Lett. B |
| In: | Phys. Lett. B 706 (2012) 263-267 |
| DOI | 10.1016/j.physletb.2011.11.042 |
| Subject category | Nuclear Physics - Experiment |
| Accelerator/Facility, Experiment | CERN SPS ; NA60 |
| Abstract | The NA60 experiment has studied J/psi production in p-A collisions at 158 and 400 GeV, at the CERN SPS. Nuclear effects on the J/psi yield have been estimated from the A-dependence of the production cross section ratios sigma_{J/psi}^{A}/sigma_{J/psi}^{Be} (A=Al, Cu, In, W, Pb, U). We observe a significant nuclear suppression of the J/psi yield per N-N collision, with a larger effect at lower incident energy, and we compare this result with previous observations by fixed-target experiments. By studying, at the two energies, the dependence of nuclear effects on x_2, the fraction of nucleon momentum carried by the interacting parton from the target nucleus, we conclude that a combination of nuclear shadowing and break-up by target nucleons cannot be the only source of nuclear suppression of the J/psi. |
| Copyright/License | Elsevier B.V. (License: arXiv nonexclusive-distrib. 1.0) |
Corresponding record in: Inspire
Notice créée le 2010-05-03, modifiée le 2023-03-17
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