Spontaneous charge breaking in the NMSSM: dangerous or not?
Abstract We investigate the impact of charge-breaking minima on the vacuum stability of the NMSSM. We concentrate on the case of vanishing A-terms in the sfermion sector, i.e. the only potentially dangerous sources of charge breaking are vacuum expectation values of the charged Higgs fields. We find...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
SpringerOpen
2017-05-01
|
| Series: | European Physical Journal C: Particles and Fields |
| Subjects: | |
| Online Access: | http://link.springer.com/article/10.1140/epjc/s10052-017-4908-4 |
| _version_ | 1818538561921613824 |
|---|---|
| author | Manuel E. Krauss Toby Opferkuch Florian Staub |
| author_facet | Manuel E. Krauss Toby Opferkuch Florian Staub |
| author_sort | Manuel E. Krauss |
| collection | DOAJ |
| description | Abstract We investigate the impact of charge-breaking minima on the vacuum stability of the NMSSM. We concentrate on the case of vanishing A-terms in the sfermion sector, i.e. the only potentially dangerous sources of charge breaking are vacuum expectation values of the charged Higgs fields. We find that, in contrast to Two-Higgs-Doublet Models like the MSSM, at both tree and loop level there exist global charge-breaking minima. Consequently, many regions of parameter space are rendered metastable, which otherwise would have been considered stable if these charge-breaking minima were neglected. However, the inclusion of these new scalar field directions has little impact on otherwise metastable vacuum configurations. |
| first_indexed | 2024-12-11T21:30:33Z |
| format | Article |
| id | doaj.art-80cf205ee13c4c5c90652d57b357eeb1 |
| institution | Directory Open Access Journal |
| issn | 1434-6044 1434-6052 |
| language | English |
| last_indexed | 2024-12-11T21:30:33Z |
| publishDate | 2017-05-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | European Physical Journal C: Particles and Fields |
| spelling | doaj.art-80cf205ee13c4c5c90652d57b357eeb12022-12-22T00:50:11ZengSpringerOpenEuropean Physical Journal C: Particles and Fields1434-60441434-60522017-05-017751710.1140/epjc/s10052-017-4908-4Spontaneous charge breaking in the NMSSM: dangerous or not?Manuel E. Krauss0Toby Opferkuch1Florian Staub2Bethe Center for Theoretical Physics and Physikalisches Institut der Universität BonnBethe Center for Theoretical Physics and Physikalisches Institut der Universität BonnInstitute for Theoretical Physics (ITP), Karlsruhe Institute of TechnologyAbstract We investigate the impact of charge-breaking minima on the vacuum stability of the NMSSM. We concentrate on the case of vanishing A-terms in the sfermion sector, i.e. the only potentially dangerous sources of charge breaking are vacuum expectation values of the charged Higgs fields. We find that, in contrast to Two-Higgs-Doublet Models like the MSSM, at both tree and loop level there exist global charge-breaking minima. Consequently, many regions of parameter space are rendered metastable, which otherwise would have been considered stable if these charge-breaking minima were neglected. However, the inclusion of these new scalar field directions has little impact on otherwise metastable vacuum configurations.http://link.springer.com/article/10.1140/epjc/s10052-017-4908-4Higgs BosonMinimal Supersymmetric Standard ModelHiggs MassVacuum StabilityCharge Conserve |
| spellingShingle | Manuel E. Krauss Toby Opferkuch Florian Staub Spontaneous charge breaking in the NMSSM: dangerous or not? European Physical Journal C: Particles and Fields Higgs Boson Minimal Supersymmetric Standard Model Higgs Mass Vacuum Stability Charge Conserve |
| title | Spontaneous charge breaking in the NMSSM: dangerous or not? |
| title_full | Spontaneous charge breaking in the NMSSM: dangerous or not? |
| title_fullStr | Spontaneous charge breaking in the NMSSM: dangerous or not? |
| title_full_unstemmed | Spontaneous charge breaking in the NMSSM: dangerous or not? |
| title_short | Spontaneous charge breaking in the NMSSM: dangerous or not? |
| title_sort | spontaneous charge breaking in the nmssm dangerous or not |
| topic | Higgs Boson Minimal Supersymmetric Standard Model Higgs Mass Vacuum Stability Charge Conserve |
| url | http://link.springer.com/article/10.1140/epjc/s10052-017-4908-4 |
| work_keys_str_mv | AT manuelekrauss spontaneouschargebreakinginthenmssmdangerousornot AT tobyopferkuch spontaneouschargebreakinginthenmssmdangerousornot AT florianstaub spontaneouschargebreakinginthenmssmdangerousornot |