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Quadrupole direct capture

Квадрупольный прямой эахват

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Il Nuovo Cimento B (1965-1970)

Summary

An expression of the cross-section for the quadrupole radiative capture of nucleons by nuclei via direct mechanism is given. The142Ce(p, γ) reaction is investigated in the (10÷50) MeV energy range. It is shown that for proton energies above 20 MeV the quadrupole contribution to the cross-section may be of the same order of magnitude as the dipole one.

Riassunto

Si ottiene un’espressione della sezione d’urto per la cattura radiativa di quadrupolo di nucleoni da parte dei nuclei attraverso il meccanismo diretto. La reazione142Ce(p, γ) è studiata nella regione energetica da 10 a 50 MeV. Si mostra che il contributo di quadrupolo alla sezione d’urto per energie di protone più elevate di 20 MeV può essere dello stesso ordine di grandezza di quello di dipolo.

Реэюме

Получается выражение поперечного сечения для квадрупольного радиационного эахвата нуклонов ядрами череэ прямой механиэм. Исследуется реакция142Ce(p, γ) в области знергий (10÷50) МзВ. Покаэывается, что для знергий протонов выще 20 МзВ квадрупольный вклад в поперечное сечение может быть того же порядка, что и дипольный вклад.

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Longo, G., Saporetti, F. Quadrupole direct capture. Nuovo Cimento B (1965-1970) 61, 167–176 (1969). https://doi.org/10.1007/BF02711704

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  • DOI: https://doi.org/10.1007/BF02711704

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