Universal momentum distributions for the spin-singlet NN channels

Rubtsova, O.A.; Pomerantsev, V.N.; Blokhintsev, L.D.

Авторы: Rubtsova O.A., Pomerantsev V.N., Blokhintsev L.D.
Журнал: Chinese Physics C
Том: 49
Год издания: 2025
Издательство: IOP Publishing
Местоположение издательства: [Bristol, UK], England
Номер статьи: 104104
DOI: 10.1088/1674-1137/addaaf
Аннотация: The formalism for a quantitative treatment of high-momentum components of momentum distributions for the spin-singlet channels is presented. This approach suggests that the use of a distribution for a virtual state in momentum representation for the channel in question is a universal one, which can be further employed within contact formalisms for nuclei. It is shown how such distributions can be calculated from low-energy scattering wave functions in the same channels. As a result, a new characteristic (a constant) for the high-momentum part of the momentum distribution in a spin-singlet channel is introduced. To test the approach, we calculate the nuclear contacts for 3He nucleus which appear to be nearly the same for four realistic interactions with essentiallydifferent high-momentum properties. The results should be useful for researchers studying the problem of shortrange correlations in nuclei. In particular, the approach gives a generalization for the formalisms based on nuclear contacts.Ссылка на статью:https://cpc.ihep.ac.cn/en/article/doi/10.1088/1674-1137/addaaf
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Universal momentum distributions for the spin-singlet NN channelsстатья

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