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Helicity amplitudes of N(1520) and N(1535) including pentaquark components

K. Xu*, A. Kaewsnod, Z. Zhao, A. Limphirat†, and Y. Yan

  • *Contact author: gxukai1123@gmail.com
  • †Contact author: ayut@g.sut.ac.th
  • ‡Contact author: yupeng@g.sut.ac.th
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Phys. Rev. D 112, 076010 – Published 10 October, 2025

DOI: https://doi.org/10.1103/m9gx-n2hr

Abstract

We investigate the helicity amplitudes of the N(1520) and N(1535) resonances in the electromagnetic transition process γ*p→N*, where the N(1520) and N(1535) are assumed to include both the L=1 three-quark and L=0 spatial symmetric q4q¯ pentaquark components. The helicity transition amplitudes A1/2, A3/2 (for spin 3/2 states) and S1/2 are computed within the constituent quark model. The inclusion of the q4q¯ pentaquark components via the γ*→qq¯ diagram significantly improves the theoretical description of the helicity amplitudes for both N(1520) and N(1535), yielding a closer agreement with experimental data compared to the pure three-quark picture. The work reveals that the N(1520) and N(1535) resonances may contain considerable pentaquark components.

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References (43)

  1. R. Thompson et al. (The CLAS Collaboration), Phys. Rev. Lett. 86, 1702 (2001).
  2. I. G. Aznauryan, Phys. Rev. C 68, 065204 (2003).
  3. M. M. Dalton et al., Phys. Rev. C 80, 015205 (2009).
  4. I. G. Aznauryan, V. D. Burkert, W. Kim, K. Park, G. Adams, M. J. Amaryan, P. Ambrozewicz, M. Anghinolfi, G. Asryan, H. Avakian, H. Bagdasaryan, N. Baillie, J. P. Ball, N. A. Baltzell, S. Barrow et al. (CLAS Collaboration), Phys. Rev. C 78, 045209 (2008).
  5. I. G. Aznauryan et al., Phys. Rev. C 71, 015201 (2005).
  6. I. G. Aznauryan et al. (CLAS Collaboration), Phys. Rev. C 80, 055203 (2009).
  7. H. Denizli et al. (CLAS Collaboration), Phys. Rev. C 76, 015204 (2007).
  8. V. I. Mokeev et al. (CLAS Collaboration), Phys. Rev. C 86, 035203 (2012).
  9. V. I. Mokeev, V. D. Burkert, D. S. Carman, L. Elouadrhiri, G. V. Fedotov, E. N. Golovatch, R. W. Gothe, K. Hicks, B. S. Ishkhanov, E. L. Isupov, and I. Skorodumina, Phys. Rev. C 93, 025206 (2016).
  10. D. Drechsel, S. S. Kamalov, and L. Tiator, Eur. Phys. J. A 34, 69 (2007).
  11. L. Tiator, D. Drechsel, S. S. Kamalov, and M. Vanderhaeghen, Chin. Phys. C 33, 1069 (2009).
  12. L. Tiator, D. Drechsel, S. S. Kamalov, and M. Vanderhaeghen, Eur. Phys. J. ST 198, 141 (2011).
  13. D. Drechsel, S. S. Kamalov, and L. Tiator, Eur. Phys. J. A 34, 69 (2007).
  14. I. Aznauryan and V. Burkert, Prog. Part. Nucl. Phys. 67, 1 (2012).
  15. G. Ramalho and M. T. Peña, Prog. Part. Nucl. Phys. 136, 104097 (2024).
  16. V. D. Burkert, R. De Vita, M. Battaglieri, M. Ripani, and V. Mokeev, Phys. Rev. C 67, 035204 (2003).
  17. S. Capstick and B. D. Keister, Phys. Rev. D 51, 3598 (1995).
  18. E. Pace, G. Salmè, F. Cardarelli, and S. Simula, Nucl. Phys. A666-667, 33 (2000).
  19. I. T. Obukhovsky, A. Faessler, D. K. Fedorov, T. Gutsche, and V. E. Lyubovitskij, Phys. Rev. D 100, 094013 (2019).
  20. I. G. Aznauryan and V. D. Burkert, Phys. Rev. C 85, 055202 (2012).
  21. I. G. Aznauryan and V. D. Burkert, Phys. Rev. C 95, 065207 (2017).
  22. M. M. Giannini and E. Santopinto, Chin. J. Phys. 53, 020301 (2015).
  23. M. M. Giannini, E. Santopinto, and A. Vassallo, Eur. Phys. J. A 12, 447 (2001).
  24. E. Santopinto and M. M. Giannini, Phys. Rev. C 86, 065202 (2012).
  25. V. M. Braun, M. Göckeler, R. Horsley, T. Kaltenbrunner, A. Lenz, Y. Nakamura, D. Pleiter, P. E. L. Rakow, J. Rohrwild, A. Schäfer, G. Schierholz, H. Stüben, N. Warkentin, and J. M. Zanotti, Phys. Rev. Lett. 103, 072001 (2009).
  26. I. V. Anikin, V. M. Braun, and N. Offen, Phys. Rev. D 92, 014018 (2015).
  27. T. Gutsche, V. E. Lyubovitskij, and I. Schmidt, Phys. Rev. D 101, 034026 (2020).
  28. V. E. Lyubovitskij and I. Schmidt, Phys. Rev. D 102, 094008 (2020).
  29. V. D. Burkert and T. S. H. Lee, Int. J. Mod. Phys. E 13, 1035 (2004).
  30. H. Kamano, S. X. Nakamura, T.-S. H. Lee, and T. Sato, Phys. Rev. C 88, 035209 (2013).
  31. D. Jido, M. Döring, and E. Oset, Phys. Rev. C 77, 065207 (2008).
  32. G. Ramalho and M. T. Peña, Phys. Rev. D 89, 094016 (2014).
  33. G. Ramalho and M. T. Peña, Phys. Rev. D 95, 014003 (2017).
  34. G. Ramalho, D. Jido, and K. Tsushima, Phys. Rev. D 85, 093014 (2012).
  35. B. Julia-Diaz, T. S. H. Lee, A. Matsuyama, T. Sato, and L. C. Smith, Phys. Rev. C 77, 045205 (2008).
  36. C. S. An and B. S. Zou, Eur. Phys. J. A 39, 195 (2009).
  37. B.-S. Zou, Nucl. Phys. A835, 199 (2010).
  38. A. Kaewsnod, K. Xu, Z. Zhao, X. Y. Liu, S. Srisuphaphon, A. Limphirat, and Y. Yan, Phys. Rev. D 105, 016008 (2022).
  39. A. Kaewsnod, K. Xu, Z. Zhao, X. Liu, S. Srisuphaphon, A. Limphirat, and Y. Yan, Eur. Phys. J. A 58, 185 (2022).
  40. K. Xu, A. Kaewsnod, Z. Zhao, X. Y. Liu, S. Srisuphaphon, A. Limphirat, and Y. Yan, Phys. Rev. D 101, 076025 (2020).
  41. K. Xu, N. Ritjoho, S. Srisuphaphon, and Y. Yan, Int. J. Mod. Phys. 29, 1460251 (2014).
  42. K. Xu, A. Kaewsnod, X. Y. Liu, S. Srisuphaphon, A. Limphirat, and Y. Yan, Phys. Rev. C 100, 065207 (2019).
  43. S. Navas et al. (Particle Data Group), Phys. Rev. D 110, 030001 (2024).

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Phys. Rev. D 112, 076010– Published 10 October, 2025
  • Received 4 September 2025
  • Accepted 20 September 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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