Reuse & Permissions

It is not necessary to obtain permission to reuse this article or its components as it is available under the terms of the Creative Commons Attribution 4.0 International license. This license permits unrestricted use, distribution, and reproduction in any medium, provided attribution to the author(s) and the published article's title, journal citation, and DOI are maintained. Please note that some figures may have been included with permission from other third parties. It is your responsibility to obtain the proper permission from the rights holder directly for these figures.

Export citation

Export citation

Choose format for download:

Download Citation
  • Open Access
  • Access by Xinjiang University

Study of BK0*(1430)+ decay in the standard model and scalar leptoquark scenario

M. Dadashzadeh and K. Azizi*

  • *Contact author: kazem.azizi@ut.ac.ir

Phys. Rev. D 114, 034053 – Published 25 August, 2026

DOI: https://doi.org/10.1103/1r8g-99f2

Abstract

This study examines the rare decay BK0*(1430)+ as a possible probe for new physics beyond the standard model (SM). We first analyze this channel within the SM and then include scalar leptoquark contributions. We provide predictions for key observables, like differential decay rate, branching ratio, ratio of branching fractions at different channels, forward-backward asymmetry and different lepton polarizations, and assess their sensitivity to leptoquark scenarios, highlighting q2 regions less affected by the long-distance charmonium effects. The results can be useful for future Belle II and LHCb measurements.

View figure in article

Physics Subject Headings (PhySH)

Article Text

References (58)

  1. T. E. Browder, T. Gershon, D. Pirjol, A. Soni, and J. Zupan, Rev. Mod. Phys. 81, 1887 (2009).
  2. J. D. Richman (BABAR and Belle Collaboration), Nucl. Phys. B, Proc. Suppl. 170, 193 (2007).
  3. P. H. Owen, PhD Thesis, University of Warwick, 2014, 10.25560/24751.
  4. G. Buchalla, A. J. Buras, and M. E. Lautenbacher, Rev. Mod. Phys. 68, 1125 (1996).
  5. A. J. Buras, M. Misiak, M. Münz, and S. Pokorski, Nucl. Phys. B424, 374 (1994).
  6. A. J. Buras and M. Münz, Phys. Rev. D 52, 186 (1995).
  7. A. J. Buras, arXiv:hep-ph/9806471.
  8. G. Isidori, Y. Nir, and G. Perez, Annu. Rev. Nucl. Part. Sci. 60, 355 (2010).
  9. T. Hurth, Rev. Mod. Phys. 75, 1159 (2003).
  10. A. Ali, E. Lunghi, C. Greub, and G. Hiller, Phys. Rev. D 66, 034002 (2002).
  11. R. Aaij et al. (LHCb Collaboration), Phys. Rev. Lett. 111, 191801 (2013).
  12. R. Aaij et al. (LHCb Collaboration), J. High Energy Phys. 02 (2016) 104.
  13. C. Bobeth, G. Hiller, and D. van Dyk, J. High Energy Phys. 07 (2011) 067.
  14. R. Aaij et al. (LHCb Collaboration), Phys. Rev. Lett. 125, 011802 (2020).
  15. R. Aaij et al. (LHCb Collaboration), Phys. Rev. D 108, 032002 (2023).
  16. A. M. Sirunyan et al. (CMS Collaboration), Phys. Lett. B 781, 517 (2018).
  17. M. Aaboud et al. (ATLAS Collaboration), J. High Energy Phys. 10 (2018) 047.
  18. W. Altmannshofer and D. M. Straub, Eur. Phys. J. C 75, 382 (2015).
  19. B. Capdevila, A. Crivellin, S. Descotes-Genon, J. Matias, and J. Virto, J. High Energy Phys. 01 (2018) 093.
  20. G. Hiller and F. Krüger, Phys. Rev. D 69, 074020 (2004).
  21. S. Descotes-Genon, J. Matias, and J. Virto, Phys. Rev. D 88, 074002 (2013).
  22. R. Aaij et al. (LHCb Collaboration), Phys. Rev. Lett. 113, 151601 (2014).
  23. R. Aaij et al. (LHCb Collaboration), J. High Energy Phys. 08 (2017) 055.
  24. C. Langenbruch (LHCb Collaboration), arXiv:1805.04370.
  25. A. López Huertas (LHCb Collaboration), Proc. Sci. EPS-HEP2023 (2024) 352.
  26. A. Hayrapetyan et al. (CMS Collaboration), Rep. Prog. Phys. 87, 077802 (2024).
  27. W. Altmannshofer and P. Stangl, Eur. Phys. J. C 81, 952 (2021).
  28. M. Algueró, B. Capdevila, A. Crivellin, S. Descotes-Genon, P. Masjuan, J. Matias, and J. Virto, Eur. Phys. J. C 79, 714 (2019).
  29. A. Khodjamirian, T. Mannel, and Y. M. Wang, J. High Energy Phys. 02 (2013) 010.
  30. M. I. Ali, U. Chattopadhyay, D. K. Ghosh, and N. Rajeev, Nucl. Phys. B1022, 117237 (2026).
  31. S. Li, Y. Xiao, and J. M. Yang, Mod. Phys. 4, 40 (2021).
  32. D. P. Aguillard et al. (Muon g-2 Collaboration), Phys. Rev. Lett. 131, 161802 (2023).
  33. A. Khodjamirian, T. Mannel, A. A. Pivovarov, and Y. M. Wang, J. High Energy Phys. 09 (2010) 089.
  34. S. Jäger and J. Martin Camalich, J. High Energy Phys. 05 (2013) 043.
  35. J. Lyon and R. Zwicky, Phys. Rev. D 88, 094004 (2013).
  36. C. Bobeth, M. Chrzaszcz, D. van Dyk, and J. Virto, Eur. Phys. J. C 78, 451 (2018).
  37. N. Rajeev, N. Sahoo, and R. Dutta, Phys. Rev. D 103, 095007 (2021).
  38. M. J. Aslam, C. D. Lü, and Y. M. Wang, Phys. Rev. D 79, 074007 (2009).
  39. Y. M. Wang, M. J. Aslam, and C. D. Lü, Phys. Rev. D 78, 014006 (2008).
  40. C. H. Chen and C. Q. Geng, Phys. Rev. D 71, 115004 (2005).
  41. W. Buchmüller, R. Rückl, and D. Wyler, Phys. Lett. B 191, 442 (1987); 448, 320(E) (1999).
  42. I. Doršner, S. Fajfer, A. Greljo, J. F. Kamenik, and N. Košnik, Phys. Rep. 641, 1 (2016).
  43. J. M. Arnold, B. Fornal, and M. B. Wise, Phys. Rev. D 88, 035009 (2013).
  44. S. Davidson, D. C. Bailey, and B. A. Campbell, Z. Phys. C 61, 613 (1994).
  45. S. Fajfer, J. F. Kamenik, and I. Nišandžić, Phys. Rev. D 85, 094025 (2012).
  46. B. Gripaios, M. Nardecchia, and S. A. Renner, J. High Energy Phys. 05 (2015) 006.
  47. A. Crivellin, D. Müller, and T. Ota, J. High Energy Phys. 09 (2017) 040.
  48. T. M. Aliev, K. Azizi, and M. Savci, Phys. Rev. D 76, 074017 (2007).
  49. E. Kou et al. (Belle II Collaboration), Prog. Theor. Exp. Phys. 2019, 123C01 (2019).
  50. F. Abudinén et al. (Belle II Collaboration), arXiv:2110.08219.
  51. I. Bediaga et al. (LHCb Collaboration), Physics case for an LHCb Upgrade II, CERN-LHCC-2018-027, LHCB-PUB-2018-009, arXiv:1808.08865.
  52. S. de Boer, B. Müller, and D. Seidel, J. High Energy Phys. 08 (2016) 091.
  53. R. N. Faustov and V. O. Galkin, Eur. Phys. J. C 78, 527 (2018).
  54. Y. K. Huang, Y. L. Shen, C. Wang, and Y. M. Wang, Phys. Rev. Lett. 134, 091901 (2025).
  55. K. Azizi, A. T. Olgun, and Z. Tavukoglu, Adv. High Energy Phys. 2017, 7435876 (2017).
  56. M. Beneke, T. Feldmann, and D. Seidel, Nucl. Phys. B612, 25 (2001).
  57. C. H. Chen, C. Q. Geng, C. C. Lih, and C. C. Liu, Phys. Rev. D 75, 074010 (2007).
  58. S. Karmakar and A. Dighe, Phys. Rev. D 110, 115041 (2024).

Outline

Information

Sign In to Your Journals Account

Filter

Filter

Article Lookup

Enter a citation