Low mass dimuon production in indium-indium collisions at the CERN SPS - IN2P3 - Institut national de physique nucléaire et de physique des particules Access content directly
Conference Papers Year : 2006

Low mass dimuon production in indium-indium collisions at the CERN SPS

M. Floris
  • Function : Author
R. Arnaldi
  • Function : Author
R. Averbeck
  • 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
A. Förster
  • Function : Author
H. Gulkanian
  • Function : Author
J. Heuser
  • Function : Author
M. Keil
  • Function : Author
C. Lourenço
  • Function : Author
J. Lozano
  • Function : Author
A. Masoni
  • Function : Author
P. Martins
A. Neves
  • Function : Author
H. Ohnishi
  • Function : Author
C. Oppedisano
  • Function : Author
P. Parracho
  • Function : Author
Philippe Pillot
G. Puddu
  • Function : Author
E. Radermacher
  • Function : Author
P. Ramalhete
  • Function : Author
P. Rosinsky
  • Function : Author
E. Scomparin
  • Function : Author
J. Seixas
  • Function : Author
R. Shahoyan
  • Function : Author
S. Serci
  • Function : Author
P. Sonderegger
  • Function : Author
H.J. Specht
  • Function : Author
G. Usai
  • Function : Author
R. Veenhof
  • Function : Author
H.K. Wöhri
  • Function : Author

Abstract

NA60 is a fixed-target experiment at the CERN SPS which measured dimuon production in nucleus-nucleus and proton-nucleus collisions. In this paper we report on a precision measurement of low-mass muon pairs in 158 AGeV indium-indium collisions. A significant excess of pairs is observed above the yield expected from neutral meson decays. The excess can be isolated by subtraction of expected sources, thanks to the excellent mass resolution and large sample size.

Dates and versions

in2p3-00086705 , version 1 (19-07-2006)

Identifiers

Cite

M. Floris, R. Arnaldi, R. Averbeck, K. Banicz, J. Castor, et al.. Low mass dimuon production in indium-indium collisions at the CERN SPS. XLI Rencontres de Moriond on QCD and High Energy Hadronic Interactions, Mar 2006, La Thuile, Italy. pp.1-4. ⟨in2p3-00086705⟩
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