Precision study of the η → μ + μ − γ and ω → μ + μ − π 0 electromagnetic transition form-factors and of the ρ → μ + μ − line shape in NA60

Arnaldi, R.; Banicz, K.; Borer, K.; Castor, J.; Chaurand, B.; Chen, W.; Cicalò, C.; Colla, A.; Cortese, P.; Damjanović, S.; David, A.; de Falco, A.; Devaux, A.; Ducroux, L.; En’yo, H.; Fargeix, J.; Ferretti, A.; Floris, M.; Förster, A.; Force, P.; Guettet, N.; Guichard, A.; Gulkanian, H.; He, X.; Jarron, P.; Keil, M.; Kluberg, L.; Li, Z.; Lourenço, C.; Lozano, J.; Manso, F.; Martins, P.; Masoni, A.; Neves, A.; Ohnìshì, H.; Oppedisano, C.; G. Ferreira Parracho, P.; Pillot, P.; Poghosyan, T.; Puddu, G.; Radermacher, E.; Ramalhete, P.; Rosinský, P.; Scomparin, E.; Seixas, J.; Serci, S.; Shahoyan, R.; Sonderegger, P.; Specht, Karsten; Tieulent, R.; Uras, A.; L. Usaı́, G.; Veenhof, R.; K. Wöhri, H.

doi:10.1016/j.physletb.2016.04.013

Public

Precision study of the η → μ + μ − γ and ω → μ + μ − π 0 electromagnetic transition form-factors and of the ρ → μ + μ − line shape in NA60

Published in Physics Letters B • Apr 11, 2016

Authors:

R. Arnaldi

K. Banicz

K. Borer

Abstract

The NA60 experiment studied low-mass muon pair production in proton–nucleus (p–A) collisions using a 400 GeV proton beam at the CERN SPS. The low-mass dimuon spectrum is well described by the superposition of the two-body and Dalitz decays of the light neutral mesons η , ρ , ω , η ′ and ϕ , and no e...

Subject

Physics

Omega

Muon

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