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22–27 Oct 2024
Hangzhou Platinum Hanjue Hotel
Asia/Shanghai timezone

Testing Resonance of Unstable Particles at Lepton Colliders

24 Oct 2024, 11:20
20m
Room 278

Room 278

Talk 07: EW & tt EW & tt

Speaker

Shao-Feng Ge (SJTU)

Description

Although the future lepton colliers (including CEPC, FCC-ee, and ILC) are designed for the precision measurement of the Higgs boson properties, the Z-pole run can also serve as a Z factory with a large number of Z bosons to be produced. This provide new opportunities at the Z pole for both new physics search and even the precision measurement of the Standard Model processes. I would talk about two physics cases. One is using the asymmetric measurements around the Z pole to probe the dimension-6 operators and the other is using the lineshape to test the usual Brei-Wigner resonance assumption for an unstable intermediate particle. Both provides strong physics cases for the Z pole run at Higgs factories.

Primary author

Shao-Feng Ge (SJTU)

Presentation materials