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Title: Type-II 2HDM under the precision measurements at the Z-pole and a Higgs factory

Journal Article · · Journal of High Energy Physics (Online)
 [1];  [2];  [3]; ORCiD logo [4];  [5]
  1. Nankai Univ., Tianjin (China)
  2. Univ. of Pittsburgh, PA (United States); Tsinghua Univ., Beijing (China)
  3. Univ. of Arizona, Tucson, AZ (United States)
  4. Univ. of Arizona, Tucson, AZ (United States); Chinese Academy of Sciences (CAS), Beijing (China); Univ. of Chinese Academy of Sciences, Beijing (China)
  5. Carleton Univ., Ottawa, ON (Canada)

Future precision measurements of the Standard Model (SM) parameters at the proposed Z-factories and Higgs factories may have significant impacts on new physics beyond the Standard Model in the electroweak sector. We illustrate this by focusing on the Type-II two Higgs doublet model (Type-II 2HDM). The contributions from the heavy Higgs bosons at the tree-level and at the one-loop level are included in a full model parameter space. We perform a multiple variable global fit and study the extent to which the parameters of non-alignment and non-degenerate 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 tan β. 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 Z-pole and at a Higgs factory are quite complementary in constraining mass splittings of heavy Higgs bosons. The typical results are | cos(β - α)| < 0.008, |ΔmΦ| < 200 GeV, and tan β ~ 0.2 - 5. The reaches from CEPC, FCC-ee and ILC are also compared, for both Higgs and Z-pole precision measurements.

Research Organization:
Univ. of Arizona, Tucson, AZ (United States); Univ. of Wisconsin, Madison, WI (United States)
Sponsoring Organization:
USDOE Office of Science (SC); National Natural Science Foundation of China (NSFC); Natural Sciences and Engineering Research Council of Canada (NERSC); National Science Foundation (NSF)
Grant/Contract Number:
SC0009913; FG02-95ER40896; 11575176; 11675242; PHY-1607611
OSTI ID:
1611223
Journal Information:
Journal of High Energy Physics (Online), Vol. 2019, Issue 3; ISSN 1029-8479
Publisher:
Springer BerlinCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 29 works
Citation information provided by
Web of Science

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Cited By (3)

Exotic Higgs decays in Type-II 2HDMs at the LHC and future 100 TeV hadron colliders journal June 2019
Exotic Higgs Decays in Type-II 2HDMs at the LHC and Future 100 TeV Hadron Colliders text January 2018
Searches for heavy Higgs bosons in the framework of 2HDM model text January 2020

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