Physical criteria for the reliability of data on the photodisintegration of the 89Y nucleus


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Experimental photonuclear reaction cross sections obtained in experiments using quasimonoenergetic annihilation, monoenergetic tagged photons, and bremsstrahlung γ-radiation are analyzed using physical criteria for the reliability of data on the 89Y nucleus. It is found that the reliability of data on the cross sections of partial reactions (γ, 1n) and (γ, 2n), obtained by means of photoneutron multiplicity sorting, is highly doubtful. Reliable cross sections of reactions (γ, 1n) and (γ, 2n) are obtained using the experimental–theoretical method (ETM) for evaluating using both experimental cross sections of neutron yield reaction σexp(γ, xn) that are free of neutron multiplicity problems, and theoretically calculated Fitheor ratios of the cross sections of definite (i) partial reactions to cross section σtheor(γ, xn). It is shown that the evaluated cross sections differ noticeably from the experimental data.

作者简介

V. Varlamov

Skobel’tsyn Institute of Nuclear Physics

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Email: Varlamov@depni.sinp.msu.ru
俄罗斯联邦, Moscow, 119991

A. Davydov

Skobel’tsyn Institute of Nuclear Physics

Email: Varlamov@depni.sinp.msu.ru
俄罗斯联邦, Moscow, 119991

V. Orlin

Skobel’tsyn Institute of Nuclear Physics

Email: Varlamov@depni.sinp.msu.ru
俄罗斯联邦, Moscow, 119991

N. Peskov

Skobel’tsyn Institute of Nuclear Physics

Email: Varlamov@depni.sinp.msu.ru
俄罗斯联邦, Moscow, 119991

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