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Retrieving nuclear information from protons propagating through a thick target

Abstract : The multiple scattering of high-energy particles in a thick target is formulated in an impact parameter representation. A formalism similar but not identical to that of Molière is obtained. We show that calculations of particle beam broadening due to multiple Coulomb scattering alone can be given in closed form. The focus of this study is on determining whether the broadening of the Coulomb angular distribution prevents the retrieval of nuclear-interaction information from the measurement of the angular distributions of charged particles scattered from a thick target. For this purpose, we study multiple scattering with both the nuclear and Coulomb interactions included, and we do not make a small-angle expansion. Conditions for retrieving nuclear information from high-energy protons propagating through a block of material are obtained.
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B.G. Giraud, Lon-Chang Liu. Retrieving nuclear information from protons propagating through a thick target. Physical Review C, American Physical Society, 2007, 75 (6), pp.064615. ⟨10.1103/PhysRevC.75.064615⟩. ⟨cea-02887645⟩

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