The NA60 experiment has studied low-mass muon pair production in proton-nucleus collisions with a system of Be, Cu, In, W, Pb andU targets, using a 400GeV proton beam at the CERN SPS. The transverse momentum spectra of the / and phi mesons are measured in the full pT range accessible, from pT=0 up to 2. The cross section ratios sigma/sigma, sigma/sigma and sigma phi/sigma have been studied as a function of the sizeA of the production target, and an increase of the and phi yields relative to the is observed from p-Be to p-U collisions.

Nuclear dependence of light neutral meson production in p–A collisions at 400 GeV with NA60

R. Arnaldi;A. Colla;A. Ferretti;C. Oppedisano;E. Scomparin;
2019-01-01

Abstract

The NA60 experiment has studied low-mass muon pair production in proton-nucleus collisions with a system of Be, Cu, In, W, Pb andU targets, using a 400GeV proton beam at the CERN SPS. The transverse momentum spectra of the / and phi mesons are measured in the full pT range accessible, from pT=0 up to 2. The cross section ratios sigma/sigma, sigma/sigma and sigma phi/sigma have been studied as a function of the sizeA of the production target, and an increase of the and phi yields relative to the is observed from p-Be to p-U collisions.
2019
79
5
1
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R. Arnaldi; K. Banicz; K. Borer; J. Castor; B. Chaurand; W. Chen; C. Cicalò; A. Colla; P. Cortese; S. Damjanovic; A. David; A. De Falco; A. Devaux; L....espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2318/1889111
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