Measurements of the differential cross-sectiopns of the (pi-, 3He) scattering at 68 MeV, of the (pi+. 4He) scattering at 120 MeV and of the (pi-, 4He) scattering at 174 MeV are presented. The experiment has been carried out by means of a high-pressure self-shunted streamer chamber filled with helium and triggered by a hodoseope of scintillation counters. The elastic differential cross-sections have been measured and the results are compared with the optical-model calculations. A new estimate of the f^2(pi 3He H) coupling constant is also presented.
New Data on the pi+- Mesons on He-4 and He-3
BALESTRA, Ferruccio;GARFAGNINI, Raffaello;PIRAGINO, Guido;
1978-01-01
Abstract
Measurements of the differential cross-sectiopns of the (pi-, 3He) scattering at 68 MeV, of the (pi+. 4He) scattering at 120 MeV and of the (pi-, 4He) scattering at 174 MeV are presented. The experiment has been carried out by means of a high-pressure self-shunted streamer chamber filled with helium and triggered by a hodoseope of scintillation counters. The elastic differential cross-sections have been measured and the results are compared with the optical-model calculations. A new estimate of the f^2(pi 3He H) coupling constant is also presented.
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