Twin Higgs with exact Z 2
Abstract We present a novel mechanism for realistic electroweak symmetry breaking in Twin Higgs/neutral naturalness models where the Z 2 exchange symmetry can remain exactly unbroken. The exchange symmetry in the Yukawa sector will be implemented as an “N-trigonometric parity” sin N h f ↔ cos N h f...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2020-12-01
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| Series: | Journal of High Energy Physics |
| Subjects: | |
| Online Access: | https://doi.org/10.1007/JHEP12(2020)005 |
| _version_ | 1797659849789538304 |
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| author | Csaba Csáki Cong-Sen Guan Teng Ma Jing Shu |
| author_facet | Csaba Csáki Cong-Sen Guan Teng Ma Jing Shu |
| author_sort | Csaba Csáki |
| collection | DOAJ |
| description | Abstract We present a novel mechanism for realistic electroweak symmetry breaking in Twin Higgs/neutral naturalness models where the Z 2 exchange symmetry can remain exactly unbroken. The exchange symmetry in the Yukawa sector will be implemented as an “N-trigonometric parity” sin N h f ↔ cos N h f $$ \sin N\frac{h}{f}\leftrightarrow \cos N\frac{h}{f} $$ . The Yukawa couplings will be suppressed leading to an N-suppressed Higgs quadratic term, without significantly affecting the quartic. We present a concrete implementation of this idea for general (odd) values of N using maximal symmetry, and a realistic benchmark model for N = 3. We find that the tuning in the resulting Higgs potential is negligible, and also show that two-loop N-suppression violating gauge contributions can be sufficiently small. The Higgs potential and its couplings in top sector are different from other neutral naturalness models, which are the main predictions of our model and can be tested in colliders. |
| first_indexed | 2024-03-11T18:21:09Z |
| format | Article |
| id | doaj.art-70ded60cb6374494a0e5367e785a806b |
| institution | Directory Open Access Journal |
| issn | 1029-8479 |
| language | English |
| last_indexed | 2024-03-11T18:21:09Z |
| publishDate | 2020-12-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Journal of High Energy Physics |
| spelling | doaj.art-70ded60cb6374494a0e5367e785a806b2023-10-15T11:04:35ZengSpringerOpenJournal of High Energy Physics1029-84792020-12-0120201212110.1007/JHEP12(2020)005Twin Higgs with exact Z 2Csaba Csáki0Cong-Sen Guan1Teng Ma2Jing Shu3Department of Physics, LEPP, Cornell UniversityDepartment of Physics, LEPP, Cornell UniversityPhysics Department, Technion — Israel Institute of TechnologyCAS Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of SciencesAbstract We present a novel mechanism for realistic electroweak symmetry breaking in Twin Higgs/neutral naturalness models where the Z 2 exchange symmetry can remain exactly unbroken. The exchange symmetry in the Yukawa sector will be implemented as an “N-trigonometric parity” sin N h f ↔ cos N h f $$ \sin N\frac{h}{f}\leftrightarrow \cos N\frac{h}{f} $$ . The Yukawa couplings will be suppressed leading to an N-suppressed Higgs quadratic term, without significantly affecting the quartic. We present a concrete implementation of this idea for general (odd) values of N using maximal symmetry, and a realistic benchmark model for N = 3. We find that the tuning in the resulting Higgs potential is negligible, and also show that two-loop N-suppression violating gauge contributions can be sufficiently small. The Higgs potential and its couplings in top sector are different from other neutral naturalness models, which are the main predictions of our model and can be tested in colliders.https://doi.org/10.1007/JHEP12(2020)005Beyond Standard ModelHiggs PhysicsTechnicolor and Composite Models |
| spellingShingle | Csaba Csáki Cong-Sen Guan Teng Ma Jing Shu Twin Higgs with exact Z 2 Journal of High Energy Physics Beyond Standard Model Higgs Physics Technicolor and Composite Models |
| title | Twin Higgs with exact Z 2 |
| title_full | Twin Higgs with exact Z 2 |
| title_fullStr | Twin Higgs with exact Z 2 |
| title_full_unstemmed | Twin Higgs with exact Z 2 |
| title_short | Twin Higgs with exact Z 2 |
| title_sort | twin higgs with exact z 2 |
| topic | Beyond Standard Model Higgs Physics Technicolor and Composite Models |
| url | https://doi.org/10.1007/JHEP12(2020)005 |
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