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φ Production in proton-nucleus and indium-indium collisions at the CERN SPS

  • M. Floris
  • , R. Arnaldi
  • , R. Averbeck
  • , K. Banicz
  • , J. Castor
  • , B. Chaurand
  • , C. Cicalo
  • , A. Colla
  • , P. Cortese
  • , S. Damjanovic
  • , A. David
  • , A. De Falco
  • , A. Devaux
  • , A. Drees
  • , L. Ducroux
  • , H. En'yo
  • , A. Ferretti
  • , P. Force
  • , N. Guettet
  • , A. Guichard
  • H. Gulkanian, J. Heuser, M. Keil, L. Kluberg, J. Lozano, C. Lourenço, F. Manso, A. Masoni, P. Martins, A. Neves, H. Ohnishi, C. Oppedisano, P. Parracho, P. Pillot, 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. K. Wöhri
  • University of Cagliari
  • University of Turin
  • Stony Brook University
  • CERN
  • Heidelberg University 
  • Université Blaise Pascal
  • Laboratoire Leprince-Ringuet
  • University of Lisbon
  • Universite Claude Bernard Lyon 1
  • RIKEN
  • A. Alikhanian Yerevan Institute of Physics

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

The quality of the dimuon measurements made by NA60, in proton-nucleus and heavy-ion collisions, is much better than that reached by previous experiments, such as NA38 and NA50. The most important improvement is due to the use of a radiation-tolerant silicon vertex telescope, placed immediately downstream of the target. This allows NA60 to do a high quality measurement of meson yields and pT distributions. This paper presents results obtained in p-Be, p-In and p-Pb collisions at 400 GeV, from data collected in 2002, and in In-In collisions at 158 AGeV, as a function of centrality, from the 2003 running period. In particular, we show that the inverse mT slope measured in In-In collisions, in the → μμ decay channel, increases with the number of nucleons participating in the collisions, rather than following a flat trend as seen in the NA50 data collected in the same decay channel but restricted to high pT values. We also show that our measurements seem to agree with the values previously measured by NA49, using → KK decays, in Pb-Pb and other collision systems.

Original languageEnglish
Title of host publicationMULTIPARTICLE DYNAMICS
Subtitle of host publicationXXXV International Symposium on Multiparticle Dynamics; and Workshop on Particle Correlations and Femtoscopy
Pages309-314
Number of pages6
DOIs
StatePublished - Apr 11 2006
EventMULTIPARTICLE DYNAMICS: XXXV International Symposium on Multiparticle Dynamics and the Workshop on Particle Correlations and Femtoscopy - Kromeriz, Czech Republic
Duration: Aug 9 2005Aug 17 2005

Publication series

NameAIP Conference Proceedings
Volume828
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

ConferenceMULTIPARTICLE DYNAMICS: XXXV International Symposium on Multiparticle Dynamics and the Workshop on Particle Correlations and Femtoscopy
Country/TerritoryCzech Republic
CityKromeriz
Period08/9/0508/17/05

Keywords

  • φ meson
  • Dimuon
  • Heavy ion collisions
  • Proton-nucleus collisions

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