Skip to main content
Log in

Shift of the Proton Drip Line by Λ-Hyperons

  • PHYSICS OF ELEMENTARY PARTICLES AND ATOMIC NUCLEI. THEORY
  • Published:
Physics of Particles and Nuclei Letters Aims and scope Submit manuscript

Abstract

Addition of a Λ-hyperon to non-strange nuclei can lead to an increase in the binding energy and formation of a bound hypernucleus with an unbound nucleon core, effectively leading to the shift of the proton drip line on the hypernuclear chart. The structure of light proton-rich Λ-hypernuclei with 5 ≤ Z ≤ 12 is treated within the Hartree–Fock approach with effective potentials in the Skyrme form. We show that nuclei 8C and 16F are most likely can be bound by a hyperon.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Fig. 1.

Similar content being viewed by others

REFERENCES

  1. A. Gal, E. Hungerford, and D. Millener, “Strangeness in nuclear physics,” Rev. Mod. Phys. 88, 035004 (2016).

    Article  ADS  Google Scholar 

  2. M. Wang et al., “The AME 2020 atomic mass evaluation (II). Tables, graphs and references,” Chin. Phys. C 45, 030003 (2021).

    Article  ADS  Google Scholar 

  3. D. Vautherin and D. Brink, “Hartree-Fock calculations with Skyrme’s interaction. I. Spherical nuclei,” Phys. Rev. C 5, 626 (1972).

    Article  ADS  Google Scholar 

  4. M. Rayet, “Skyrme parametrization of an effective Λ‑nucleon interaction,” Nucl. Phys. A 367, 381 (1981).

    Article  ADS  Google Scholar 

  5. H. J. Schulze and E. Hiyama, “Skyrme force for light and heavy hypernuclei,” Phys. Rev. C 90, 047301 (2014).

    Article  ADS  Google Scholar 

  6. D. Lanskoy and Y. Yamamoto, “Skyrme–Hartree–Fock treatment of Λ and ΛΛ hypernuclei with G-matrix motivated interactions,” Phys. Rev. C 55, 2330 (1997).

    Article  ADS  Google Scholar 

  7. Y. Yamamoto, H. Bando, and J. Zofka, “On the Λ-hypernuclear single particle energies,” Prog. Theor. Phys. 80, 757 (1988).

    Article  ADS  Google Scholar 

  8. Y. Zhang, H. Sagawa, and E. Hiyama, “Hyperon halo structure of C and B isotopes,” Phys. Rev. C 103, 034321 (2021).

    Article  ADS  Google Scholar 

  9. E. Chabanat, P. Bonche, P. Haensel, J. Meyer, and R. Schaeffer, “A Skyrme parametrization from subnuclear to nuclear star densities. Part II. Nuclei far from stabilities,” Nucl. Phys. A 635, 231 (1998).

    Article  ADS  Google Scholar 

  10. J. Bartel, P. Quentin, M. Brack, C. Guet, and H.‑B. Hakansson, “Towards a better parametrisation of Skyrme-like effective forces: a critical study of the SkM Force,” Nucl. Phys. A 386, 79 (1982).

    Article  ADS  Google Scholar 

  11. M. Beiner, H. Flocard, N. Giai, and P. Quentin, “Nuclear ground-state properties and self-consistent calculations with the Skyrme interaction: (I). Spherical description,” Nucl. Phys. A 238, 29 (1975).

    Article  ADS  Google Scholar 

  12. S. Sidorov, D. Lanskoy, and T. Tretyakova, “Light Λ‑hypernuclei structure near nucleon stability lines and baryon interactions,” Phys. Part. Nucl. 53, 415 (2022).

    Article  Google Scholar 

  13. S. Sidorov, D. Lanskoy, and T. Tretyakova, “Proton drip line for light hypernuclei,” Eur. J. Phys. A 58, 203 (2022).

    Article  ADS  Google Scholar 

Download references

FUNDING

This research has been supported by the Interdisciplinary Scientific and Educational School of Moscow University “Fundamental and Applied Space Research”. S.V. Sidorov expresses his appreciation for the support from Theoretical Physics and Mathematics Foundation “BASIS”.

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to A. S. Kornilova.

Ethics declarations

The authors declare that they have no conflicts of interest.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Kornilova, A.S., Sidorov, S.V., Lanskoy, D.E. et al. Shift of the Proton Drip Line by Λ-Hyperons. Phys. Part. Nuclei Lett. 20, 1142–1145 (2023). https://doi.org/10.1134/S154747712305045X

Download citation

  • Received:

  • Revised:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1134/S154747712305045X

Navigation