Determination of the HZγ effective coupling

Abstract

The HZγ coupling can be obtained from the measurement of the H → Zγ branching fraction in the ZZγ final state, on the one hand; and from the combined measurement of the H → γγ branching fraction and the e+e− → Hγ cross section, on the other. The requirements on the detector design (photon identification, photon energy/angular resolutions, in particular) to achieve a meaningful measurement of the HZγ coupling (e.g., with a precision significantly better than HL- LHC projections) will be studied.

• The corresponding Snowmass LOI

Bibliography

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