New physics implication of Higgs precision measurements

Ning Chen, Jiayin Gu, Tao Han, Honglei Li, Zhen Liu, Huayang Song, Shufang Su, Wei Su, Yongcheng Wu, Jin Min Yang

Research output: Contribution to journalArticle

2 Scopus citations

Abstract

Studying the properties of the Higgs boson can be an important window to explore the physics beyond the Standard Model (SM). In this work, we present studies on the implications of the Higgs precision measurements at future Higgs Factories. We perform a global fit to various Higgs search channels to obtain the 95% C.L. constraints on the model parameter spaces of two-Higgs Doublet Model (2HDM) and Minimal Supersymmetric Standard Model (MSSM). In the 2HDM, we analyze tree-level effects as well as one-loop contributions from the heavy Higgs bosons. The strong constraints on cos(β - α), heavy Higgs masses and their mass splitting are complementary to direct search of the LHC as well as possible future Z pole precision measurements. For the MSSM, we study both the Higgs couplings and mass precisions. The constraints on the CP-odd Higgs mass mA and stop mass scale mSUSY can be complementary to the direct search of HL-LHC. 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).

Original languageEnglish (US)
Article number1940012
JournalInternational Journal of Modern Physics A
Volume34
Issue number13-14
DOIs
StatePublished - May 20 2019

Keywords

  • 2HDM
  • Higgs factories
  • MSSM

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Nuclear and High Energy Physics
  • Astronomy and Astrophysics

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    Chen, N., Gu, J., Han, T., Li, H., Liu, Z., Song, H., Su, S., Su, W., Wu, Y., & Yang, J. M. (2019). New physics implication of Higgs precision measurements. International Journal of Modern Physics A, 34(13-14), [1940012]. https://doi.org/10.1142/S0217751X19400128