Conde, P.Garrido Beltrán, LluísPeralta, D.HERA-B Collaboration2014-07-242014-07-2420091434-6044https://hdl.handle.net/2445/56278Inclusive doubly differential cross sections d 2 σ pA /dx F   dp T 2 as a function of Feynman-x (x F ) and transverse momentum (p T ) for the production of K S 0 , Λ and Λ¯ in proton-nucleus interactions at 920 GeV are presented. The measurements were performed by HERA-B in the negative x F range (−0.12<x F <0.0) and for transverse momenta up to p T =1.6 GeV/c. Results for three target materials: carbon, titanium and tungsten are given. The ratios of production cross sections are presented and discussed. The Cronin effect is clearly observed for all three V 0 species. The atomic number dependence is parameterized as σ pA =σ pN ⋅A α where σ pN is the proton-nucleon cross section. The measured values of α are all near one. The results are compared with EPOS 1.67 and PYTHIA 6.3. EPOS reproduces the data to within ≈20% except at very low transverse momentum.15 p.application/pdfengcc-by (c) HERA-B Collaboration, 2009http://creativecommons.org/licenses/by/3.0/AstronomiaAstrofísicaTeoria quàntica de campsModels de cordaFísica nuclearPartícules (Física nuclear)AstronomyAstrophysicsQuantum field theoryString modelsNuclear physicsParticles (Nuclear physics)info:eu-repo/semantics/article5776442014-07-24info:eu-repo/semantics/openAccess