- Physical Review Journals
All JournalsPhysics Magazine

Physical Review D

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

Probing the general 2HDM with flavor violation through A→ZH

Wei-Shu Hou and Mohamed Krab

PDF

Phys. Rev. D 111, 115036 – Published 27 June, 2025

DOI: https://doi.org/10.1103/jb96-gjrg

Abstract

We investigate the LHC discovery prospects for a second Higgs doublet through A→ZH weak decay. The latter is identified as the smoking gun signature of two Higgs doublet models (2HDMs) with first-order electroweak (EW) phase transition, a necessary condition for EW baryogenesis. In the general 2HDM (G2HDM) that has flavor-changing neutral Higgs couplings, H may decay dominantly via tc¯+t¯c final states, giving rise to trilepton signals. By a phenomenological analysis, we show that A→ZH in ℓ+ℓ−tc¯ or ℓ+ℓ−t¯c final states could be a promising probe of G2HDM at the LHC with flavor violation.

View figure in article

Physics Subject Headings (PhySH)

Article Text

References (66)

  1. G. Aad et al. (ATLAS Collaboration), Phys. Lett. B 716, 1 (2012).
  2. S. Chatrchyan et al. (CMS Collaboration), Phys. Lett. B 716, 30 (2012).
  3. S. Kanemura, Y. Okada, and E. Senaha, Phys. Lett. B 606, 361 (2005).
  4. K. Fuyuto, W.-S. Hou, and E. Senaha, Phys. Lett. B 776, 402 (2018).
  5. N. Turok and J. Zadrozny, Nucl. Phys. B358, 471 (1991).
  6. A. T. Davies, C. D. froggatt, G. Jenkins, and R. G. Moorhouse, Phys. Lett. B 336, 464 (1994).
  7. J. M. Cline, K. Kainulainen, and A. P. Vischer, Phys. Rev. D 54, 2451 (1996).
  8. J. M. Cline and P. A. Lemieux, Phys. Rev. D 55, 3873 (1997).
  9. L. Fromme, S. J. Huber, and M. Seniuch, J. High Energy Phys. 11 (2006) 038.
  10. J. M. Cline, K. Kainulainen, and M. Trott, J. High Energy Phys. 11 (2011) 089.
  11. M. Ahmadvand, Int. J. Mod. Phys. A 29, 1450090 (2014).
  12. G. C. Dorsch, S. J. Huber, and J. M. No, J. High Energy Phys. 10 (2013) 029.
  13. G. C. Dorsch, S. J. Huber, K. Mimasu, and J. M. No, Phys. Rev. Lett. 113, 211802 (2014).
  14. P. Basler, M. Krause, M. Muhlleitner, J. Wittbrodt, and A. Wlotzka, J. High Energy Phys. 02 (2017) 121.
  15. J. Bernon, L. Bian, and Y. Jiang, J. High Energy Phys. 05 (2018) 151.
  16. T. Biekötter, S. Heinemeyer, J. M. No, K. Radchenko, M. O. O. Romacho, and G. Weiglein, J. High Energy Phys. 01 (2024) 107.
  17. C. W. Chiang, K. Fuyuto, and E. Senaha, Phys. Lett. B 762, 315 (2016).
  18. G. C. Dorsch, S. J. Huber, T. Konstandin, and J. M. No, J. Cosmol. Astropart. Phys. 05 (2017) 052.
  19. G. C. Dorsch, S. J. Huber, K. Mimasu, and J. M. No, J. High Energy Phys. 12 (2017) 086.
  20. T. Modak and E. Senaha, Phys. Rev. D 99, 115022 (2019).
  21. D. Gonçalves, A. Kaladharan, and Y. Wu, Phys. Rev. D 105, 095041 (2022).
  22. P. Basler, L. Biermann, M. Mühlleitner, and J. Müller, Eur. Phys. J. C 83, 57 (2023).
  23. K. Enomoto, S. Kanemura, and Y. Mura, J. High Energy Phys. 01 (2022) 104; 09 (2022) 121.
  24. S. Kanemura and Y. Mura, J. High Energy Phys. 09 (2023) 153.
  25. D. Gonçalves, A. Kaladharan, and Y. Wu, Phys. Rev. D 108, 075010 (2023).
  26. P. Athron, M. J. Ramsey-Musolf, C. Sierra, and Y. Wu, arXiv:2502.00445.
  27. ACME Collaboration, Nature (London) 562, 355 (2018).
  28. T. S. Roussy et al., Science 381, 46 (2023).
  29. K. Fuyuto, W.-S. Hou, and E. Senaha, Phys. Rev. D 101, 011901(R) (2020).
  30. W.-S. Hou, Phys. Lett. B 296, 179 (1992).
  31. M. Kohda, T. Modak, and W.-S. Hou, Phys. Lett. B 776, 379 (2018).
  32. D. K. Ghosh, W.-S. Hou, and T. Modak, Phys. Rev. Lett. 125, 221801 (2020).
  33. W.-S. Hou and M. Krab, Phys. Rev. D 110, L011702 (2024).
  34. W.-S. Hou and M. Krab, Phys. Rev. D 111, L031701 (2025).
  35. S. Davidson and H. E. Haber, Phys. Rev. D 72, 035004 (2005).
  36. W.-S. Hou and M. Kikuchi, Europhys. Lett. 123, 11001 (2018).
  37. G. Aad et al. (ATLAS and CMS Collaborations), J. High Energy Phys. 08 (2016) 045.
  38. S. L. Glashow and S. Weinberg, Phys. Rev. D 15, 1958 (1977).
  39. J.-M. Gérard and M. Herquet, Phys. Rev. Lett. 98, 251802 (2007).
  40. D. Eriksson, J. Rathsman, and O. Stål, Comput. Phys. Commun. 181, 189 (2010).
  41. W. Grimus, L. Lavoura, O. M. Ogreid, and P. Osland, J. Phys. G 35, 075001 (2008); Nucl. Phys. B801, 81 (2008).
  42. S. Navas et al. (Particle Data Group), Phys. Rev. D 110, 030001 (2024).
  43. A. Crivellin, C. Greub, and A. Kokulu, Phys. Rev. D 87, 094031 (2013).
  44. B. Altunkaynak, W.-S. Hou, C. Kao, M. Kohda, and B. McCoy, Phys. Lett. B 751, 135 (2015).
  45. http://www.utfit.org/UTfit/ResultsSummer2023NP
  46. W.-S. Hou, M. Kohda, and T. Modak, Phys. Rev. D 98, 075007 (2018).
  47. P. Bechtle, S. Heinemeyer, T. Klingl, T. Stefaniak, G. Weiglein, and J. Wittbrodt, Eur. Phys. J. C 81, 145 (2021).
  48. H. Bahl, T. Biekötter, S. Heinemeyer, C. Li, S. Paasch, G. Weiglein, and J. Wittbrodt, Comput. Phys. Commun. 291, 108803 (2023).
  49. G. Aad et al. (ATLAS Collaboration), J. High Energy Phys. 06 (2021) 145.
  50. A. M. Sirunyan et al. (CMS Collaboration), J. High Energy Phys. 07 (2020) 126.
  51. G. Aad et al. (ATLAS Collaboration), J. High Energy Phys. 12 (2023) 081.
  52. A. Hayrapetyan et al. (CMS Collaboration), Phys. Lett. B 850, 138478 (2024).
  53. A. Tumasyan et al. (CMS Collaboration), Phys. Rev. Lett. 129, 032001 (2022); A. Hayrapetyan et al. (CMS Collaboration), arXiv:2407.15172.
  54. G. Aad et al. (ATLAS Collaboration), Eur. Phys. J. C 84, 757 (2024).
  55. J. Alwall, R. Frederix, S. Frixione, V. Hirschi, F. Maltoni, O. Mattelaer, H.-S. Shao, T. Stelzer, P. Torrielli, and M. Zaro, J. High Energy Phys. 07 (2014) 079.
  56. T. Sjöstrand, S. Ask, J. R. Christiansen, R. Corke, N. Desai, P. Ilten, S. Mrenna, S. Prestel, C. O. Rasmussen, and P. Z. Skands, Comput. Phys. Commun. 191, 159 (2015).
  57. J. de Favereau, C. Delaere, P. Demin, A. Giammanco, V. Lemaître, A. Mertens, and M. Selvaggi (delphes 3 Collaboration), J. High Energy Phys. 02 (2014) 057.
  58. J. Alwall et al., Eur. Phys. J. C 53, 473 (2008).
  59. M. Grazzini, S. Kallweit, D. Rathlev, and M. Wiesemann, Phys. Lett. B 761, 179 (2016).
  60. R. V. Harlander, S. Liebler, and H. Mantler, Comput. Phys. Commun. 184, 1605 (2013).
  61. D. de Florian et al. (LHC Higgs Cross Section Working Group), Handbook of LHC Higgs Cross Sections: 4. Deciphering the Nature of the Higgs Sector (CERN, Geneva, 2017), 10.23731/CYRM-2017-002.
  62. G. Aad et al. (ATLAS Collaboration), Eur. Phys. J. C 76, 259 (2016).
  63. E. Alvarez, D. A. Faroughy, J. F. Kamenik, R. Morales, and A. Szynkman, Nucl. Phys. B915, 19 (2017).
  64. G. Cowan, K. Cranmer, E. Gross, and O. Vitells, Eur. Phys. J. C 71, 1554 (2011).
  65. F. Arco, T. Biekötter, P. Stylianou, and G. Weiglein, arXiv:2502.03443.
  66. A. M. Sirunyan et al. (CMS Collaboration), Phys. Rev. D 104, 032013 (2021).

Outline

Information

Phys. Rev. D 111, 115036– Published 27 June, 2025
  • Received 2 April 2025
  • Accepted 2 June 2025
Crossmark - Check for updates button
Creative Commons Logo

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.

Published by the American Physical Society

Sign In to Your Journals Account

Filter

Filter

Article Lookup

Enter a citation