Electroweak baryogenesis in the ℤ3 $$ {\mathbb{Z}}_3 $$-invariant NMSSM
Abstract We calculate the baryon asymmetry of the Universe in the ℤ3 $$ {\mathbb{Z}}_3 $$-invariant Next-to-Minimal Supersymmetric Standard Model where the interactions of the singlino provide the necessary source of charge and parity violation. Using the closed time path formalism, we derive and so...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2017-11-01
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| Series: | Journal of High Energy Physics |
| Subjects: | |
| Online Access: | http://link.springer.com/article/10.1007/JHEP11(2017)051 |
| _version_ | 1818275593547939840 |
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| author | Sujeet Akula Csaba Balázs Liam Dunn Graham White |
| author_facet | Sujeet Akula Csaba Balázs Liam Dunn Graham White |
| author_sort | Sujeet Akula |
| collection | DOAJ |
| description | Abstract We calculate the baryon asymmetry of the Universe in the ℤ3 $$ {\mathbb{Z}}_3 $$-invariant Next-to-Minimal Supersymmetric Standard Model where the interactions of the singlino provide the necessary source of charge and parity violation. Using the closed time path formalism, we derive and solve transport equations for the cases where the singlet acquires a vacuum expectation value (VEV) before and during the electroweak phase transition. We perform a detailed scan to show how the baryon asymmetry varies throughout the relevant parameter space. Our results show that the case where the singlet acquires a VEV during the electroweak phase transition typically generates a larger baryon asymmetry, although we expect that the case where the singlet acquires a VEV first is far more common for any model in which parameters unify at a high scale. Finally, we examine the dependence of the baryon asymmetry on the three-body interactions involving gauge singlets. |
| first_indexed | 2024-12-12T22:32:13Z |
| format | Article |
| id | doaj.art-bcd71db35e1049aeb629f042a67778a1 |
| institution | Directory Open Access Journal |
| issn | 1029-8479 |
| language | English |
| last_indexed | 2024-12-12T22:32:13Z |
| publishDate | 2017-11-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Journal of High Energy Physics |
| spelling | doaj.art-bcd71db35e1049aeb629f042a67778a12022-12-22T00:09:34ZengSpringerOpenJournal of High Energy Physics1029-84792017-11-0120171112610.1007/JHEP11(2017)051Electroweak baryogenesis in the ℤ3 $$ {\mathbb{Z}}_3 $$-invariant NMSSMSujeet Akula0Csaba Balázs1Liam Dunn2Graham White3School of Physics and Astronomy, Monash UniversitySchool of Physics and Astronomy, Monash UniversitySchool of Physics and Astronomy, Monash UniversitySchool of Physics and Astronomy, Monash UniversityAbstract We calculate the baryon asymmetry of the Universe in the ℤ3 $$ {\mathbb{Z}}_3 $$-invariant Next-to-Minimal Supersymmetric Standard Model where the interactions of the singlino provide the necessary source of charge and parity violation. Using the closed time path formalism, we derive and solve transport equations for the cases where the singlet acquires a vacuum expectation value (VEV) before and during the electroweak phase transition. We perform a detailed scan to show how the baryon asymmetry varies throughout the relevant parameter space. Our results show that the case where the singlet acquires a VEV during the electroweak phase transition typically generates a larger baryon asymmetry, although we expect that the case where the singlet acquires a VEV first is far more common for any model in which parameters unify at a high scale. Finally, we examine the dependence of the baryon asymmetry on the three-body interactions involving gauge singlets.http://link.springer.com/article/10.1007/JHEP11(2017)051Supersymmetry Phenomenology |
| spellingShingle | Sujeet Akula Csaba Balázs Liam Dunn Graham White Electroweak baryogenesis in the ℤ3 $$ {\mathbb{Z}}_3 $$-invariant NMSSM Journal of High Energy Physics Supersymmetry Phenomenology |
| title | Electroweak baryogenesis in the ℤ3 $$ {\mathbb{Z}}_3 $$-invariant NMSSM |
| title_full | Electroweak baryogenesis in the ℤ3 $$ {\mathbb{Z}}_3 $$-invariant NMSSM |
| title_fullStr | Electroweak baryogenesis in the ℤ3 $$ {\mathbb{Z}}_3 $$-invariant NMSSM |
| title_full_unstemmed | Electroweak baryogenesis in the ℤ3 $$ {\mathbb{Z}}_3 $$-invariant NMSSM |
| title_short | Electroweak baryogenesis in the ℤ3 $$ {\mathbb{Z}}_3 $$-invariant NMSSM |
| title_sort | electroweak baryogenesis in the z3 mathbb z 3 invariant nmssm |
| topic | Supersymmetry Phenomenology |
| url | http://link.springer.com/article/10.1007/JHEP11(2017)051 |
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