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Probe Higgs-gluon coupling via jet energy profile at e+e− colliders
by
LI Gexing
→
Asia/Shanghai
B105 (CHEP)
B105
CHEP
School of Physics, PKU
Description
The effective coupling of Higgs boson to gluon pair via fermion loop is one of the most important parameters to test the Standard Model and search the new physics beyond. We propose several new observables based on jet energy profile to extract the effective coupling. The statistical uncertainties of the new observables are derived and estimated based on the simulation at the future e+e- collider for the center-of-mass energy 250 GeV and integrated luminosity 5 ab-1. The uncertainties of effective coupling via the new observables can reach about 2%, and the new observables could make improvement on measuremnt of effective coupling compared to conventional approach.