\begin{document}$ NN $\end{document} momentum distributions for the spin-singlet channels is presented. This approach suggests that the use of a distribution for a virtual state in momentum representation for the \begin{document}$ NN $\end{document} channel in question is a universal one, which can be further employed within contact formalisms for nuclei. It is shown how such distributions can be calculated from low-energy scattering wave functions in the same channels. As a result, a new characteristic (a constant) for the high-momentum part of the momentum distribution in a spin-singlet channel is introduced. To test the approach, we calculate the \begin{document}$ pp $\end{document} nuclear contacts for the \begin{document}$ ^3 {\rm{He}}$\end{document}, nucleus which appear to be nearly the same for four realistic \begin{document}$ NN $\end{document} interactions with essentially different high-momentum properties. The results should be useful for researchers studying the problem of short-range correlations in nuclei. In particular, the approach gives a generalization for the formalisms based on nuclear contacts."> Universal momentum distributions for the spin-singlet <i>NN</i> channels -
  • [1]

    M. Dueret al. (CLAS collaboration), Nature560, 617 (2018)

  • [2]

    S. Li, R. Cruz-Torres, N. Santiestebanet al., Nature609, 41 (2022)

  • [3]

    C. Ciofi degli Atti, Phys. Rep.590, 1 (2015)

  • [4]

    J.Arrington, N. Fomin, and A. Schmidt, Annu. Rev. Nucl. Part. Sci.72, 307 (2022)

  • [5]

    R. Cruz-Torres, D. Londaroni, R. Weisset al., Nat. Phys.17, 306 (2021)

  • [6]

    R. Subedi, R. Shneor, P. Monaghanet al., Science320, 1476 (2008)

  • [7]

    I. Korover, N. Muangma, O. Henet al., Phys. Rev. Lett.113, 022501 (2014)

  • [8]

    I. Korover, J. R. Pybus, A. Schmidtet al. (CLAS collaboration), Phys. Lett. B820, 136523 (2021)

  • [9]

    M. Alvioli, C. Ciofi degli Atti, and H. Morita, Phys. Rev. C94, 044309 (2016)

  • [10]

    R. Weiss, R. Cruz-Torres, N. Barneaet al., Phys. Lett. B780, 211 (2018)

  • [11]

    R. Schiavillaet al., Phys. Rev. Lett.98, 132501 (2007)

  • [12]

    C. Ciofi degli Atti and H. Morita, Phys. Rev. C96, 064317 (2017)

  • [13]

    F. Sammarruca, Phys. Rev. C92, 044003 (2015)

  • [14]

    Yu. N. Uzikov and A. Uvarov, Phys. Part. Nucl.53, 426 (2022)

  • [15]

    G. Fäldt and C. Wilkin, Phys. Scrip.56, 566 (1997)

  • [16]

    G. Fäldt and C. Wilkin, Amer. J. Phys.66, 876 (1998)

  • [17]

    G. Fäldt and C. Wilkin, Phys. Lett. B382, 209 (1996)

  • [18]

    O. A. Rubtsova and V. N. Pomerantsev, JETP Lett.120, 547 (2024)

  • [19]

    E. Hernández and A. Mondragón, Phys. Rev. C29, 722 (1984)

  • [20]

    Yu. V. Orlov and V. V. Turovtsev, Sov. Phys. JETP59, 934 (1984)

  • [21]

    A. I. Baz, Ya. B. Zeldovich, and A. M. Perelomov,Scattering, Reactions and Decay in Nonrelativistic Quantum Mechanics, Second edition (Nauka, Moscow, 1971, in Russian) [English translation of 1st edn. (Jerusalem, 1969)]

  • [22]

    A. M. Mukhamedzhanov and L. D. Blokhintsev, Eur. Phys. J. A58, 29 (2022)

  • [23]

    A. M. Mukhamedzhanov, B. F. Irgaziev, V. Z. Goldberget al., Phys. Rev. C81, 054314 (2010)

  • [24]

    L. D. Blokhintsev, I. Borbely, and E. I. Dolinskii, Sov. J. Part. Nucl.8, 485 (1977)

  • [25]

    S. A. Rakitiansky,Jost Functions in Quantum Mechanics(Springer Nature Switzerland AG, 2022)

  • [26]

    Y. Yamaguchi, Phys. Rev. C95, 1628 (1954)

  • [27]

    R. B. Wiringa, V. G. J. Stoks, and R. Schiavilla, Phys. Rev. C51, 38 (1995)

  • [28]

    R. Machleidt, Phys. Rev. C63, 024001 (2001)

  • [29]

    O. A. Rubtsova, V. N. Pomerantsev, and M. N. Platonova, Int. J. Mod. Phys. E33, 2441030 (2024)

  • [30]

    R. B. Wiringa, R. Schiavilla, S. Pieperet al., Phys. Rev. C89, 024305 (2014)

Baidu
map