


Learning from Higgs Physics at Future Higgs Factories 
CAS Key Laboratory of Theoretical Physics  Institute of Theoretical Physics  Chinese Academy of Sciences  Seminar  Title 题目  Learning from Higgs Physics at Future Higgs Factories  Speaker 报告人  Su, Shufang  Affiliation 所在单位  University of Arizona  Date 日期  2:00pm, Sep 12, 2018, Tuesday  Venue 地点  Conference Room 6420, ITP new building  Abstract 摘要  Future Higgs factories can reach impressive precision on Higgs property measurements. In this talk, we explore its sensitivity to new physics models at the electronpositron colliders. We illustrate this by focusing on the TypeII two Higgs doublet model. We include the contributions from the heavy Higgs bosons at the treelevel and at the oneloop level in a full modelparameter space. We perform a multiple variable global fit to various Higgs search channels to obtain the 95%C.L. constraints on the model parameter space. In particular, we study the extent to which the parameters of nonalignment and nondegenerate masses can be probed by the precision measurements. We find that the allowed parameter ranges are tightly constrained by the future Higgs precision measurements, especially for small and large values of tanβ. Indirect limits on the masses of heavy Higgs can be obtained, which can be complementary to the direct searches of the heavy Higgs bosons at hadron colliders. We also find that the expected accuracies at the Zpole and at a Higgs factory are quite complementary in constraining mass splittings of heavy Higgs bosons. We also compare the sensitivity of various future Higgs factories, namely Circular Electron Positron Collider (CEPC), Future Circular Collider (FCC)ee and International Linear Collider (ILC)  Contact person 所内联系人  Jing Shu  


