| Article | |
| Report number | arXiv:1108.0970 |
| Title | Low Mass Dimuon Production in p-A Collisions at $\sqrt{s} = 27.5$ GeV with NA60 |
| Author(s) |
Uras, A. (INFN, Cagliari ; Lyon, IPN) ; Arnaldi, R (INFN, Torino) ; Oppedisano, C (INFN, Torino) ; Scomparin, E (INFN, Torino) ; Banicz, K (CERN ; Heidelberg U.) ; Damjanovic, S (CERN ; Heidelberg U.) ; David, A (CERN ; CERN) ; Forster, A (CERN) ; Guettet, N (CERN ; Clermont-Ferrand U.) ; Keil, M (CERN ; Lisbon, IST) ; Lourenco, C (CERN) ; Martins, P (CERN ; Lisbon, IST) ; Radermacher, E (CERN) ; Ramalhete, P (CERN ; Lisbon, IST) ; Rosinsky, P (CERN) ; Shahoyan, R (CERN ; Lisbon, IST) ; Specht, H J (Heidelberg U.) ; Castor, J (Clermont-Ferrand U.) ; Devaux, A (Clermont-Ferrand U.) ; Fargeix, J (Clermont-Ferrand U.) ; Seixas, J (Lisbon, IST) ; Sonderegger, P (Lisbon, IST) ; Gulkanian, H (ITPM, Yerevan) ; Poghosyan, T (ITPM, Yerevan) ; Heuser, J M (Wako, RIKEN) ; Guichard, A (Lyon, LMA ; Lyon, IPN) ; Floris, M (Cagliari U. ; INFN, Cagliari) ; Li, Z (BNL) ; Force, P (Clermont-Ferrand U.) ; Ferretti, A (INFN, Turin) ; En'yo, H (Wako, RIKEN) ; Ducroux, L (Lyon, LMA ; Lyon, IPN) ; de Falco, A (Cagliari U. ; INFN, Cagliari) ; Colla, A (INFN, Turin) ; Cortese, P (INFN, Turin) ; Cicalo, C (INFN, Cagliari) ; Pillot, P (Lyon, LMA ; Lyon, IPN) ; Chaurand, B (Ecole Polytechnique) ; Ohnishi, H (Wako, RIKEN) ; Parracho, P (Lisbon, IST) ; Puddu, G (Cagliari U. ; INFN, Cagliari) ; Veenhof, R (Lisbon, IST) ; Serci, S (Cagliari U. ; INFN, Cagliari) ; Lozano, J (Lisbon, IST) ; Usai, G (Cagliari U. ; INFN, Cagliari) ; Wohri, H K (Lisbon, IST) ; Tieulent, R (Lyon, LMA ; Lyon, IPN) ; Masoni, A (INFN, Cagliari) ; Neves, A (Lisbon, IST) ; Manso, F (Clermont-Ferrand U.) |
| Publication | 2011 |
| Imprint | 05 Aug 2011 |
| Number of pages | 5 |
| In: | J. Phys. G 38 (2011) pp.124180 |
| In: | 22nd international conference on ultrarelativistic nucleus-nucleus collisions, Annecy, France, 23 - 28 May 2011, pp.124180 |
| DOI | 10.1088/0954-3899/38/12/124180 |
| Subject category | Particle Physics - Experiment |
| Accelerator/Facility, Experiment | CERN SPS ; NA60 |
| Abstract | The NA60 experiment has studied low-mass muon pair production in proton-nucleus collisions with a system of Be, Cu, In, W, Pb and U targets using a 400 GeV/$c$ proton beam at the CERN SPS. The mass spectrum is well described by the superposition of the two-body and Dalitz decays of the light neutral mesons $\eta$, $\rho$, $\omega$, $\eta'$ and $\phi$. A new high-precision measurement of the electromagnetic transition form factors of the $\eta$ and $\omega$ mesons is presented, complemented with a measurement of the temperature parameter of the $\rho$ meson in cold nuclear matter. The $\pt$ spectra for the $\omega$ and $\phi$ mesons are extracted in the full $\pt$ range accessible, up to $\pt = 2$ GeV/$c$. The nuclear dependence of the production cross sections for the $\eta$, $\omega$ and $\phi$ mesons has been investigated in terms of the power law $\sigma_\mathrm{pA} \propto \mathrm{A}^\alpha$, and the $\alpha$ parameter was studied as a function of $\pt$. |
| Copyright/License | arXiv nonexclusive-distrib. 1.0 |
Corresponding record in: Inspire
记录创建於2011-08-05，最後更新在2023-03-14
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