New physics interpretations for nonstandard values of $h\to Z\gamma$

Rafael Boto; Dipankar Das; Jorge C. Romao; Ipsita Saha; Joao P. Silva

New physics interpretations for nonstandard values of $h\to Z\gamma$

High Energy Physics - Phenomenology 2024-03-28 v2

Authors: Rafael Boto , Dipankar Das , Jorge C. Romao , Ipsita Saha , Joao P. Silva

Abstract

Current measurement of the $h\to Z\gamma$ signal strength invite us to speculate about possible new physics interactions that exclusively affect $\mu_{Z\gamma}$ without altering the other signal strengths. Additional consideration of tree-unitarity enables us to correlate the nonstandard values of $\mu_{Z\gamma}$ with an upper limit on the scale of new physics. We find that even when $\mu_{Z\gamma}$ deviates from the SM value by only $20\%$ , the scale of new physics should be well within the reach of the LHC.

Keywords

Higgs boson decay $h\to Z\gamma$ new physics tree-unitarity Large Hadron Collider (LHC)

Cite

@article{arxiv.2312.13050,
  title  = {New physics interpretations for nonstandard values of $h\to Z\gamma$},
  author = {Rafael Boto and Dipankar Das and Jorge C. Romao and Ipsita Saha and Joao P. Silva},
  journal= {arXiv preprint arXiv:2312.13050},
  year   = {2024}
}

Comments

Updated Fig.3. Appendix A added, discussions added. Version accepted for publication in Phys. Rev. D

New physics interpretations for nonstandard values of $h\to Z\gamma$

Abstract

Keywords

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