Scattering of Protons by Tritons

Abstract

The proton-triton differential scattering cross section has been measured for laboratory angles between 45° and 135° and proton energies between 0.7 and 2.5 Mev. In this angular range the scattering is predominantly nuclear and shows a rapid increase in intensity for angles greater than 90° in the center of mass system. Some indications of anomalous behavior near the threshold for T 3 (£,w)He 3 are reported.

Étude de la diffusion de tritons de 3,8 MeV par des protons contenus dans une plaque photographique. courbes donnant la section efficace dans le système du centre de gravité en fonction de l'angle de diffusion et de l'énergie

“…D'une façon générale, nous appelons : 1. Section efficace totale = la section efficace définie plus haut pour une énergie donnée ;…”

“…La diffusion proton-triton a été étudiée pour la première fois en 1949 au Van de Graaff de Los Alamos par Hemmendinger, Harvis et Taschek, puis en 1951, par R. S. Claassen, R. J. S. Brown, G. D. Freier et W. R. Stratton [1]. Ces travaux ont été réalisés au moyen de compteurs.…”

“…Dans la suite, nous étudierons le choc élastique triton-proton et dans une dernière, nous donnerons les résultats expérimentaux. 1. Dispositif expérimental.…”

Benchmark calculation of p-3H and n-3He scattering

“…In addition to the desire of improving theoretical tools, it is important to note that for these reactions there exist a large amount of accurate experimental data, accumulated during the last 50 years. In particular, below the d − d threshold there exist (since many years) several measurements of the p-3 H elastic differential cross section [35][36][37][38][39][40][41], n-3 He elastic differential cross section [42,43] and total cross section [42][43][44][45], and n-3 He elastic analyzing powers [46][47][48][49][50]. Regarding the n-3 He → p-3 H charge exchange reaction, there exist mainly measurements of the total cross section [43,45,[51][52][53][54][55][56][57].…”

Benchmark calculation ofp−H3andn−He3

“…In particular, below the d − d threshold there exist (since many years) several measurements of the p-3 H elastic differential cross section [35][36][37][38][39][40][41], n-3 He elastic differential cross section [42,43] and total cross section [42][43][44][45], and n-3 He elastic analyzing powers [46][47][48][49][50]. Regarding the n-3 He → p-3 H charge exchange reaction, there exist mainly measurements of the total cross section [43,45,[51][52][53][54][55][56][57].…”