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  • Open Access

Roles of Λ resonances in the K−p→γΣ reaction

Yi Pan and Bo-Chao Liu*

  • Ministry of Education Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Shaanxi Province Key Laboratory of Quantum Information and Quantum Optoelectronic Devices, School of Physics, Xi’an Jiaotong University, Xi’an 710049, China

  • *Contact author: liubc@xjtu.edu.cn
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Phys. Rev. D 112, 094053 – Published 24 November, 2025

DOI: https://doi.org/10.1103/948v-lnlx

Abstract

We investigate the K−p→γΣ reaction using an effective Lagrangian approach within an isobar model framework. The model includes contributions from s-channel hyperon and hyperon resonance, t-channel K and K*, u-channel proton and Δ(1232) exchanges, and a phenomenological contact term. Our analysis focuses on the roles of various Λ resonances. The results indicate that the Λ(1600) resonance is crucial for describing the experimental data at lower energies. At higher energies, the inclusion of either the Λ(1670) or the Λ(1690) resonance significantly improves the agreement with data. However, the current data are insufficient to distinguish between these two scenarios. We suggest that future measurements at higher beam energies and the measurement of the Σ polarization are needed to identify the roles of the Λ(1670) and Λ(1690) resonances.

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References (47)

  1. S. Prakhov et al., Phys. Rev. C 82, 015201 (2010).
  2. T. D. S. Stanislaus, V. V. Abaev, D. Allen, C. E. Allgower, J. Alyea, M. A. Bates, V. S. Bekrenev, W. J. Briscoe, R. V. Cadman, J. Comfort et al., Phys. Rev. C 79, 015203 (2009).
  3. M. Amaryan et al. (KLF Collaboration), arXiv:2008.08215.
  4. T. Nagae, Nucl. Phys. A805, 486 (2008).
  5. H. Ohnishi, F. Sakuma, and T. Takahashi, Prog. Part. Nucl. Phys. 113, 103773 (2020).
  6. T. S. Mast, M. Alston-Garnjost, R. O. Bangerter, A. Barbaro-Galtieri, L. K. Gershwin, F. T. Solmitz, and R. D. Tripp, Phys. Rev. Lett. 21, 1715 (1968).
  7. J. Colas, C. Farwell, A. Ferrer, and J. Six, Nucl. Phys. B91, 253 (1975).
  8. R. Bertini et al., Particles and Nuclei: Proceedings of the Tenth International Conference on Particles and Nuclei, Heidelberg, July 30–August 3, 1984 (North-Holland, 1985).
  9. C.-R. Ji and S. R. Cotanch, Phys. Rev. C 38, 2691 (1988).
  10. R. Williams, C. R. Ji, and S. R. Cotanch, Phys. Rev. D 41, 1449 (1990).
  11. R. A. Williams, C. R. Ji, and S. R. Cotanch, Phys. Rev. C 43, 452 (1991).
  12. J. C. David, C. Fayard, G. H. Lamot, and B. Saghai, Phys. Rev. C 53, 2613 (1996).
  13. M. Guidal, J.-M. Laget, and M. Vanderhaeghen, Phys. Rev. C 61, 025204 (2000).
  14. T. Mart, Phys. Rev. C 62, 038201 (2000).
  15. S. Janssen, J. Ryckebusch, D. Debruyne, and T. Van Cauteren, Phys. Rev. C 66, 035202 (2002).
  16. G. Penner and U. Mosel, Phys. Rev. C 66, 055211 (2002).
  17. O. V. Maxwell, Phys. Rev. C 93, 014605 (2016).
  18. T. Mart and M. J. Kholili, J. Phys. G 46, 105112 (2019).
  19. S. Clymton and T. Mart, Phys. Rev. D 104, 056015 (2021).
  20. N. H. Luthfiyah and T. Mart, Phys. Rev. D 104, 076022 (2021).
  21. N.-C. Wei, A.-C. Wang, F. Huang, and K. Nakayama, Phys. Rev. D 105, 094017 (2022).
  22. N.-C. Wei, A.-C. Wang, and F. Huang, Phys. Rev. D 107, 114018 (2023).
  23. D. Petrellis and D. Skoupil, Phys. Rev. C 110, 065204 (2024).
  24. A. Usov and O. Scholten, Phys. Rev. C 72, 025205 (2005).
  25. X. Cao, V. Shklyar, and H. Lenske, Phys. Rev. C 88, 055204 (2013).
  26. D. Rönchen, M. Döring, U.-G. Meißner, and C.-W. Shen, Eur. Phys. J. A 58, 229 (2022).
  27. Y.-F. Wang, U.-G. Meißner, D. Rönchen, and C.-W. Shen, Phys. Rev. C 109, 015202 (2024).
  28. T. Corthals, T. V. Cauteren, J. Ryckebusch, and D. G. Ireland, Phys. Rev. C 75, 045204 (2007).
  29. T. Corthals, T. Van Cauteren, P. Van Craeyveld, J. Ryckebusch, and D. G. Ireland, Phys. Lett. B 656, 186 (2007).
  30. P. Vancraeyveld, L. De Cruz, J. Ryckebusch, and T. Van Cauteren, Phys. Lett. B 681, 428 (2009).
  31. H. Haberzettl, Phys. Rev. C 56, 2041 (1997).
  32. H. Haberzettl, C. Bennhold, T. Mart, and T. Feuster, Phys. Rev. C 58, R40 (1998).
  33. F. Huang, M. Döring, H. Haberzettl, J. Haidenbauer, C. Hanhart, S. Krewald, U.-G. Meißner, and K. Nakayama, Phys. Rev. C 85, 054003 (2012).
  34. T. Van Cauteren, J. Ryckebusch, B. Metsch, and H.-R. Petry, Eur. Phys. J. A 26, 339 (2005).
  35. T. Van Cauteren, J. Ryckebusch, B. Metsch, and H. R. Petry, Eur. Phys. J. A 31, 613 (2007).
  36. J. J. de Swart, Rev. Mod. Phys. 35, 916 (1963); 37, 326(E) (1965).
  37. A. Wang, W. Wang, F. Huang, H. Haberzettl, and K. Nakayama, Phys. Rev. C 96, 035206 (2017).
  38. S. Navas et al. (Particle Data Group), Phys. Rev. D 110, 030001 (2024).
  39. A.-C. Wang, W.-L. Wang, and F. Huang, Phys. Rev. D 101, 074025 (2020).
  40. J.-J. Xie, E. Wang, and J. Nieves, Phys. Rev. C 89, 015203 (2014).
  41. Y. Oh, C. M. Ko, and K. Nakayama, Phys. Rev. C 77, 045204 (2008).
  42. F. Huang, A. C. Wang, W. L. Wang, H. Haberzettl, and K. Nakayama, Int. J. Mod. Phys. Conf. Ser. 46, 1860032 (2018).
  43. K. Ohta, Phys. Rev. C 40, 1335 (1989).
  44. A. Fatima, Z. A. Dar, M. S. Athar, and S. Singh, Int. J. Mod. Phys. E 29, 2050051 (2020).
  45. Y. Pan, R. Li, and B.-C. Liu, Chin. Phys. C 49, 044106 (2025).
  46. A.-C. Wang, W.-L. Wang, and F. Huang, Phys. Rev. C 98, 045209 (2018).
  47. J. Shi and B.-S. Zou, Phys. Rev. C 91, 035202 (2015).

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Phys. Rev. D 112, 094053– Published 24 November, 2025
  • Received 2 September 2025
  • Accepted 13 November 2025
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Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP3.

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