- 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

Sensitivity of heavy Higgs boson to the precision Yukawa coupling measurements at Higgs factories

Kamal Maayergi and Devin G. E. Walker

Michael E. Peskin

  • Department of Physics and Astronomy, Dartmouth College, Hanover, New Hampshire 03755 USA

PDF

Phys. Rev. D 112, 075032 – Published 17 October, 2025

DOI: https://doi.org/10.1103/bxq7-66j3

Abstract

We investigate the potential of precision Higgs boson coupling measurements to discover heavy Higgs bosons by performing scans of the parameter space in two-Higgs-doublet models. Our study encompasses conventional type I and type II models, as well as models in which Higgs couplings differ between the third-generation and lighter fermion generations. The scans reveal that precision measurements at the sensitivity levels projected for Higgs factories, such as the Linear Collider Facility (LCF) and the Future Circular Collider (FCC-ee) at CERN and the Circular Electron-Positron Collider (CEPC) in China, are capable of probing heavy Higgs boson masses in the multi-TeV range, with sensitivity extending beyond 5 TeV in certain scenarios. In particular, the precise determination of the charm quark Yukawa coupling at Higgs factories provides a powerful test of the hypothesis that the fermion mass hierarchy arises from an extended Higgs sector with different Higgs fields coupling to the different generations of fermions.

View figure in article

Physics Subject Headings (PhySH)

Article Text

References (28)

  1. G. Aad et al. (ATLAS Collaboration), Observation of a new particle in the search for the standard model Higgs boson with the ATLAS detector at the LHC, Phys. Lett. B 716, 1 (2012).
  2. S. Chatrchyan et al. (CMS Collaboration), Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC, Phys. Lett. B 716, 30 (2012).
  3. A. M. Sirunyan et al. (CMS Collaboration), Combined measurements of Higgs boson couplings in proton–proton collisions at s=13  TeV, Eur. Phys. J. C 79, 421 (2019).
  4. G. Aad et al. (ATLAS Collaboration), Combined measurements of Higgs boson production and decay using up to 80  fb−1 of proton-proton collision data at s=13  TeV collected with the ATLAS experiment, Phys. Rev. D 101, 012002 (2020).
  5. Snowmass white paper contribution: Physics with the phase-2 ATLAS and CMS detectors, Technical Report, CERN, Geneva, 2022.
  6. S. Dawson et al., Report of the Topical Group on Higgs physics for Snowmass 2021: The case for precision Higgs physics, in Snowmass 2021 (2022), arXiv:2209.07510.
  7. A. Aryshev et al. (ILC International Development Team Collaboration), The International Linear Collider: Report to Snowmass 2021, arXiv:2203.07622.
  8. H. Cheng et al. (CEPC Physics Study Group Collaboration), The physics potential of the CEPC. Prepared for the US Snowmass Community Planning Exercise (Snowmass 2021), in Snowmass 2021 (2022), arXiv:2205.08553.
  9. M. Benedikt et al. (FCC Collaboration), Future circular collider feasibility study report: Volume 1, Physics, experiments, detectors, Report No. CERN-FCC-PHYS-2025-0002, 2025 10.17181/CERN.9DKX.TDH9.
  10. D. Attié et al. (Linear Collider Vision Collaboration), A linear collider vision for the future of particle physics, arXiv:2503.19983.
  11. H. Abramowicz et al. (ILD Concept Group), International large detector: Interim design report, arXiv:2003.01116.
  12. H. Ono and A. Miyamoto, A study of measurement precision of the Higgs boson branching ratios at the International Linear Collider, Eur. Phys. J. C 73, 2343 (2013).
  13. M. E. Peskin, Model-agnostic exploration of the mass reach of precision Higgs boson coupling measurements, in Snowmass 2021 (2022); arXiv:2209.03303.
  14. G. F. Giudice, C. Grojean, A. Pomarol, and R. Rattazzi, The strongly-interacting light Higgs, J. High Energy Phys. 06 (2007) 045.
  15. J. F. Gunion, H. E. Haber, G. L. Kane, and S. Dawson, The Higgs Hunter’s Guide (Westview Press, Boulder Colorado, 2000), Vol. 80.
  16. R. S. Chivukula and H. Georgi, Composite technicolor standard model, Phys. Lett. B 188, 99 (1987).
  17. G. D’Ambrosio, G. F. Giudice, G. Isidori, and A. Strumia, Minimal flavor violation: An effective field theory approach, Nucl. Phys. B645, 155 (2002).
  18. W. Altmannshofer, J. Eby, S. Gori, M. Lotito, M. Martone, and D. Tuckler, Collider signatures of flavorful Higgs bosons, Phys. Rev. D 94, 115032 (2016).
  19. W. Altmannshofer, S. Gori, D. J. Robinson, and D. Tuckler, The flavor-locked flavorful two Higgs doublet model, J. High Energy Phys. 03 (2018) 129.
  20. W. Altmannshofer and B. Maddock, Flavorful two Higgs doublet models with a twist, Phys. Rev. D 98, 075005 (2018).
  21. G. G. Ross, New directions in theory (and their phenomenological implications), Nucl. Phys. B, Proc. Suppl. 13, 132 (1990).
  22. H.-M. Chan and S. T. Tsou, Physical consequences of Non-Abelian duality in the standard model, Phys. Rev. D 57, 2507 (1998).
  23. J. D. Bjorken, S. Pakvasa, and S. F. Tuan, Yet another extension of the standard model: Oases in the desert?, Phys. Rev. D 66, 053008 (2002).
  24. J. F. Gunion and H. E. Haber, The CP conserving two Higgs doublet model: The approach to the decoupling limit, Phys. Rev. D 67, 075019 (2003).
  25. A. M. Sirunyan et al. (CMS Collaboration), Search for lepton-flavor violating decays of the Higgs boson in the μτ and eτ final states in proton-proton collisions at s=13  TeV, Phys. Rev. D 104, 032013 (2021).
  26. G. Aad et al. (ATLAS Collaboration), Searches for lepton-flavour-violating decays of the Higgs boson into eτ and μτ in s=13  TeV pp collisions with the ATLAS detector, J. High Energy Phys. 07 (2023) 166.
  27. T. Barklow, K. Fujii, S. Jung, R. Karl, J. List, T. Ogawa, M. E. Peskin, and J. Tian, Improved formalism for precision Higgs coupling fits, Phys. Rev. D 97, 053003 (2018).
  28. Flavorful 2HDM, 10.5281/zenodo.15794138.

Outline

Information

Phys. Rev. D 112, 075032– Published 17 October, 2025
  • Received 2 July 2025
  • Accepted 23 September 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