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Leading particle distributions in 200 GeV/c p+A interactions

Abstract : Distributions of the leading positive particle have been measured in collisions of a 200 GeV/c proton beam with hydrogen, Mg, Ag and Au targets using the FNAL Hybrid Spectrometer. Estimates of the rapidity loss of the projectile have been obtained as a function of the target mass, the multiplicity of negative particles and the number of recoil protons. We obtained a lower limit of the rapidity loss of 2.0±0.2 for central p+Au collisions. The impact parameter dependence of the momenta of the first few leading particles has also been investigated with important implications to estimates of energy densities obtained in central collisions.
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https://hal.archives-ouvertes.fr/hal-03184729
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K. Abe, G. Alexander, E.D. Alyea, M. Badiak, P. Beilliere, et al.. Leading particle distributions in 200 GeV/c p+A interactions. Physics Letters B, Elsevier, 1988, 200 (3), pp.266-271. ⟨10.1016/0370-2693(88)90769-1⟩. ⟨hal-03184729⟩

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