New limits on tan β for 2HDMs with Z2 symmetry
(2015) In International Journal of Modern Physics A 30(26).- Abstract
In two-Higgs-doublet models with exact Z2 symmetry, putting mh ≃ 125 GeV at the alignment limit, the following limits on the heavy scalar masses are obtained from the conditions of unitarity and stability of the scalar potential: mH, mA, mH+ < 1 TeV and 1/8 < tan β < 8. The constraints from b → sγ and neutral meson mass differences, when superimposed on the unitarity constraints, put a tighter lower limit on tan β depending on mH+. It has also been shown that larger values of tan β can be allowed by introducing soft breaking term in the potential at the expense of a correlation between mH and the soft breaking parameter.
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/06e9436e-632a-4d7b-bc20-c5b05b45e1c4
- author
- Das, Dipankar LU
- publishing date
- 2015-09-20
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Two Higgs doublet model
- in
- International Journal of Modern Physics A
- volume
- 30
- issue
- 26
- article number
- 1550158
- publisher
- World Scientific Publishing
- external identifiers
-
- scopus:84942056816
- ISSN
- 0217-751X
- DOI
- 10.1142/S0217751X15501584
- language
- English
- LU publication?
- no
- id
- 06e9436e-632a-4d7b-bc20-c5b05b45e1c4
- date added to LUP
- 2019-05-22 15:31:23
- date last changed
- 2022-01-31 20:43:20
@article{06e9436e-632a-4d7b-bc20-c5b05b45e1c4, abstract = {{<p>In two-Higgs-doublet models with exact Z2 symmetry, putting m<sub>h</sub> ≃ 125 GeV at the alignment limit, the following limits on the heavy scalar masses are obtained from the conditions of unitarity and stability of the scalar potential: m<sub>H</sub>, m<sub>A</sub>, m<sub>H+</sub> < 1 TeV and 1/8 < tan β < 8. The constraints from b → sγ and neutral meson mass differences, when superimposed on the unitarity constraints, put a tighter lower limit on tan β depending on m<sub>H+</sub>. It has also been shown that larger values of tan β can be allowed by introducing soft breaking term in the potential at the expense of a correlation between m<sub>H</sub> and the soft breaking parameter.</p>}}, author = {{Das, Dipankar}}, issn = {{0217-751X}}, keywords = {{Two Higgs doublet model}}, language = {{eng}}, month = {{09}}, number = {{26}}, publisher = {{World Scientific Publishing}}, series = {{International Journal of Modern Physics A}}, title = {{New limits on tan β for 2HDMs with Z<sub>2</sub> symmetry}}, url = {{http://dx.doi.org/10.1142/S0217751X15501584}}, doi = {{10.1142/S0217751X15501584}}, volume = {{30}}, year = {{2015}}, }