The pp/pn Ratio in the Reaction 12C(p,ppN)10A of Quasi-Elastic Knock-Out of a Nucleon from a Short-Range Correlated NN Pair

Авторы: Uzikov Yu, Uvarov A.
Журнал: Physics of Particles and Nuclei
Том: 53
Номер: 2
Год издания: 2022
Издательство: Pleiades Publishing, Inc.
Местоположение издательства: New York, USA
Первая страница: 426
Последняя страница: 432
DOI: 10.1134/s106377962202085x
Аннотация: The reaction 12C(p,2pN)10A is considered in the plane wave impulse approximation assuming the pole mechanism of the nucleon knock-out from the short-range correlated NN pair. Spectroscopic factors for separation of two nucleons in definite spin 𝑆 and isospin 𝑇 states from the 12C nucleus are calculated within the translationally invariant shell model. The high momentum part of the internal wave function of the NN pair is replaced by the realistic wave function of the deuteron (ST = 10) or the singlet 1𝑆0 deuteron (ST = 10). It is shown that the yield ratio for knocked-out 𝑝𝑝 pairs to 𝑝𝑛 pairs, 𝑝𝑝/𝑝𝑛, is suppressed in this reaction by one order of magnitude due to the ratio of the spectroscopic factors and furthermore by the ratio of internal momentum distributions in these pairs.
Добавил в систему: Узиков Юрий Николаевич

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