| Published Articles | |
| Report number | arXiv:2012.14385 |
| Title | Nuclear dependence of light neutral meson production in p-A collisions at 400 GeV with NA60 |
| Author(s) |
Arnaldi, R. (INFN, Turin) ; Banicz, K. (CERN ; Heidelberg U.) ; Borer, K. (Bern U.) ; Castor, J. (Clermont-Ferrand U.) ; Chaurand, B. (Ecole Polytechnique) ; Chen, W. (RIKEN BNL) ; Cicalò, C. (INFN, Cagliari) ; Colla, A. (INFN, Turin ; Turin U.) ; Cortese, P. (Turin U. ; Piemonte Orientale U., Alessandria) ; Damjanovic, S. (CERN ; Heidelberg U.) ; David, A. (CERN ; Lisbon, CFTP) ; De Falco, A. (INFN, Cagliari ; Cagliari U.) ; Devaux, A. (Clermont-Ferrand U.) ; Ducroux, L. (Lyon, IPN) ; En'yo, H. (Bern U.) ; Fargeix, J. (Clermont-Ferrand U.) ; Ferretti, A. (INFN, Turin ; Turin U.) ; Floris, M. (INFN, Cagliari ; Cagliari U.) ; Förster, A. (CERN) ; Force, P. (Clermont-Ferrand U.) ; Guettet, N. (CERN ; Clermont-Ferrand U.) ; Guichard, A. (Lyon, IPN) ; Gulkanian, H. (Yerevan Phys. Inst.) ; Heuser, J.M. (RIKEN (main)) ; Jarron, P. (CERN) ; Keil, M. (CERN ; Lisbon, CFTP) ; Kluberg, L. (Ecole Polytechnique) ; Li, Z. (RIKEN BNL) ; Lourenço, C. (CERN) ; Lozano, J. (Lisbon, CFTP) ; Manso, F. (Clermont-Ferrand U.) ; Martins, P. (CERN ; Lisbon, CFTP) ; Masoni, A. (INFN, Cagliari) ; Neves, A. (Lisbon, CFTP) ; Ohnishi, H. (RIKEN (main)) ; Oppedisano, C. (INFN, Turin) ; Parracho, P. (CERN ; Lisbon, CFTP) ; Pillot, P. (Lyon, IPN) ; Poghosyan, T. (Yerevan Phys. Inst.) ; Puddu, G. (Cagliari U.) ; Radermacher, E. (CERN) ; Ramalhete, P. (CERN ; Lisbon, CFTP) ; Rosinsky, P. (CERN) ; Scomparin, E. (INFN, Turin) ; Seixas, J. (Lisbon, CFTP ; Lisbon, CENTRA ; LIP, Lisbon) ; Serci, S. (INFN, Cagliari ; Cagliari U.) ; Shahoyan, R. (CERN ; Lisbon, CFTP) ; Sonderegger, P. (Lisbon, CFTP) ; Specht, H.J. (Heidelberg U.) ; Tieulent, R. (Lyon, IPN) ; Uras, A. (INFN, Cagliari ; Cagliari U. ; Lyon, IPN) ; Usai, G. (INFN, Cagliari ; Cagliari U.) ; Veenhof, R. (Lisbon, CFTP) ; Wöhri, H.K. (CERN ; Lisbon, CFTP ; Cagliari U.) |
| Publication | 2019-05-25 |
| Imprint | 2020-12-28 |
| Number of pages | 13 |
| In: | Eur. Phys. J. C 79 (2019) 443 |
| DOI | 10.1140/epjc/s10052-019-6848-7 |
| Subject category | Nuclear 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 proton beam at the CERN SPS. The transverse momentum spectra of the $\rho/\omega$ and $\phi$ mesons are measured in the full $p_\mathrm{T}$ range accessible, from $p_\mathrm{T} = 0$ up to 2 GeV/$c$. The nuclear dependence of the production cross sections of the $\eta$, $\omega$ and $\phi$ mesons has been found to be consistent with the power law $\sigma_\mathrm{pA} \propto \mathrm{A}^\alpha$, with the $\alpha$ parameter increasing as a function of $p_\mathrm{T}$ for all the particles, and an approximate hierarchy $\alpha_\eta \approx \alpha_\phi > \alpha_\omega$. The cross section ratios $\sigma_\eta/\sigma_\omega$, $\sigma_\rho/\sigma_\omega$ and $\sigma_\phi/\sigma_\omega$ have been studied as a function of the size A of the production target, and an increase of the $\eta$ and $\phi$ yields relative to the $\omega$ is observed from p-Be to p-U collisions. |
| Copyright/License | publication: © 2019-2024 The Authors (License: CC-BY-4.0) |
Corresponding record in: Inspire
Rekord stworzony 2019-09-14, ostatnia modyfikacja 2022-08-10