On the Reaction F¹⁹(p, α)O¹⁶ in the Range of Bombarding Energy from 2.2- to 3.4-MeV

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Susumu Morita¹, Takemi Nakagawa¹, Hsu ¹, Chu-Chung ¹, Lee ¹, and Sang-Mu ¹

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¹Department of Physics, Tohoku University

Received July 1, 1966

The reaction F ¹⁹( p , α ₀)O ¹⁶ was studied with the bombarding energies of a few MeV proton. Excitation curves were measured at 90° and 135° (1ab.) from 2.24- to 3.35-MeV with the energy step of about 20 KeV. The angular distributions were measured at twelve energies in the region between 2.64- and 3.35-MeV. Most of the angular distributions are asymmetric with respect to 90° (C. M.). The data were analyzed with the theory of fluctuation and the coherence energy \(\varGamma\) was found to be 60 KeV, which corresponds to the lifetime of compound nucleus τ of 1.1×10 ^-20 sec.. The ratio of the direct reaction to the compound process, x _D=σ _D/<σ>, was found to be zero at 90° (1ab.) and 0.90 at 135° (1ab.) and also for the integrated cross section.

https://doi.org/10.1143/JPSJ.21.2435

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On the Reaction F19(p, α)O16 in the Range of Bombarding Energy from 2.2- to 3.4-MeV

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On the Reaction F¹⁹(p, α)O¹⁶ in the Range of Bombarding Energy from 2.2- to 3.4-MeV