Coherent ฯ0 photo-production on 4He at i
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V. Bellini; M. Capogni; A. Caracappa; L. Casano; A. D'Angelo; F. Ghio; B. Girola
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Article
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1999
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Elsevier Science
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English
โ 496 KB
The reaction 4He(~,~rยฐ)4He has been studied with the LEGS tagged, polarized gamma-ray beam. Data are presented at laboratory angles of 31 ยฐ, 45 ยฐ, 72.5 ยฐ, 90 ยฐ, 110 ยฐ and 130 ยฐ for incoming photon energies of 206, 219, 232, 245,259, 274, 289, 306 and 322 MeV. The unpolarized cross sections are compa