Bibliographic Details
| Title: |
production in proton–nucleus collisions at 158 and 400 GeV |
| Authors: |
Arnaldi, R.1, Banicz, K.2,3, Castor, J.4, Chaurand, B.5, Chen, W.6, Cicalò, C.7, Colla, A.8, Cortese, P.1 cortese@to.infn.it, Damjanovic, S.2,3, David, A.2,9, de Falco, A.10, Devaux, A.4, Ducroux, L.11, Enʼyo, H.12, Fargeix, J.4, Ferretti, A.8, Floris, M.10, Förster, A.2, Force, P.4, Guettet, N.2,4 |
| Source: |
Physics Letters B. Jan2012, Vol. 706 Issue 4/5, p263-267. 5p. |
| Subjects: |
Protons, Collisions (Nuclear physics), Particles (Nuclear physics), Momentum (Mechanics), Partons, Astronomy, Nuclear physics |
| Abstract: |
Abstract: The NA60 experiment has studied production in p–A collisions at 158 and 400 GeV, at the CERN SPS. Nuclear effects on the yield have been estimated from the A-dependence of the production cross section ratios (A=Al, Cu, In, W, Pb, U). We observe a significant nuclear suppression of the yield per nucleon–nucleon collision, with a larger effect at lower incident energy, and we compare this result with previous observations by other fixed-target experiments. An attempt to disentangle the different contributions to the observed suppression has been carried out by studying the dependence of nuclear effects on , the fraction of the nucleon momentum carried by the interacting parton in the target nucleus. [Copyright &y& Elsevier] |
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| Database: |
Engineering Source |
