Sensitivities of Prospective Future e+e− Colliders to Decoupled New Physics
نویسندگان
چکیده
We explore the indirect sensitivities to decoupled new physics of prospective precision electroweak measurements, triple-gauge-coupling measurements and Higgs physics at future e+e− colliders, with emphasis on the ILC250 and FCC-ee. The Standard Model effective field theory (SM EFT) is adopted as a model-independent approach for relating experimental precision projections to the scale of new physics, and we present prospective constraints on the Wilson coefficients of dimension-6 operators. We find that in a marginalised fit ILC250 EWPT measurements may be sensitive to new physics scales Λ = O(10) TeV, and FCC-ee EWPT measurements may be sensitive to Λ = O(30) TeV. The prospective sensitivities of Higgs and TGC measurements at the ILC250 (FCC-ee) are to Λ = O(1) TeV (Λ = O(2) TeV). October 2015 ar X iv :1 51 0. 04 56 1v 1 [ he pph ] 1 5 O ct 2 01 5
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