Effect of TeV scale new physics on the rare process e+e−→Hγ

New physics [NP] beyond the SM can significantly affect the cross-section for the process e+e−→Hγ through non-renormalizable operators involving the light SM fields. The scale associated with some of these operators are mildly constrained by LEP I and SLC data and can be as low as 365 GeV. In that case LEP II is expected to produce a few hundred events with mH≈150 GeV which would be impossible to miss. On the other hand if Λ≈1 TeV then NLC500 can produce a significant number of events for 250 GeV