期刊
PHYSICS LETTERS B
卷 704, 期 4, 页码 303-307出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.physletb.2011.09.035
关键词
Higgs boson
资金
- Japan Society for the Promotion of Science (JSPS) [20244037, 22244031]
- National Science Council of Taiwan [NSC 99-2811-M-002-088]
- Grants-in-Aid for Scientific Research [20244037] Funding Source: KAKEN
We study an upper bound on masses of additional scalar bosons from the electroweak precision data and theoretical constraints such as perturbative unitarity and vacuum stability in the two-Higgs-doublet model taking account of recent Higgs boson search results. If the mass of the Standard-Model-like Higgs boson is rather heavy and is outside the allowed region by the electroweak precision data, such a discrepancy should be compensated by contributions from the additional scalar bosons. We show the upper bound on masses of the additional scalar bosons to be about 2 (1) TeV for the mass of the Standard-Model-like Higgs boson to be 240 (500) GeV. (C) 2011 Elsevier B.V. All rights reserved.
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