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Loop-induced $Hgg$ and $H\gamma\gamma$ coupling play an important role in theHiggs production and decay at the LHC. These vertices can be affected byvarious New Physics contributions, including new particles, anomalous Yukawacouplings, and so on. We point out some ratios of the Higgs signal strengthscould help disentangle the contributions of new particles from other sources ofNew Physics.

Is there new particle running in the loop-induced $H\gamma\gamma$ and $Hgg$ vertex?