Abstract
In this article we study the phenomenological implications of multiple Higgs boson production from longitudinal vector boson scattering in the context of effective field theories. We find compact representations for effective tree-level amplitudes with up to four final state Higgs bosons. Total cross sections are then computed for scenarios relevant at the LHC in which we find the general Higgs Effective Theory (HEFT) prediction avoids the heavy suppression observed in Standard Model Effective Field Theory (SMEFT).
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Acknowledgments
We thank C. Quezada for useful checks on the MaMuPaXS phase-space integration. We are grateful to S. Badger, A. Dobado and F. J. Llanes-Estrada for their careful reading and comments on the manuscript. We also thank F. Arco, M. Cepeda, M.J. Herrero, J. León, N. Smith and J.F. de Trocóniz for useful discussions on multi-Higgs production at the LHC. This work has been supported in part by Spanish MICINN (PID2022-137003NB-I00, PID2021-124473NB-I00, PID2019-108655GB-I00/AEI/10.13039/501100011033), U. Complutense de Madrid under research group 910309, the IPARCOS institute, the EU under grant 824093 (STRONG2020). The work of RGA is supported by the EU’s Next Generation grant DataSMEFT23 (PNRR — DM 247 08/22). The work of JMM is supported by the grant Ayudas de doctorado IPARCOS-UCM/2022. ASB acknowledges the support of the EU’s Next Generation funding, grant number CNS2022-135688. RGA thanks the Galileo Galilei Institute for hospitality and support during the scientific program on “Theory Challenges in the Precision Era of the Large Hadron Collider”, where part of this work was carried out.
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Delgado, R.L., Gómez-Ambrosio, R., Martínez-Martín, J. et al. Production of two, three, and four Higgs bosons: where SMEFT and HEFT depart. J. High Energ. Phys. 2024, 37 (2024). https://doi.org/10.1007/JHEP03(2024)037
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DOI: https://doi.org/10.1007/JHEP03(2024)037