T-model Higgs inflation and metastable cosmic strings
Abstract We present the formation of metastable cosmic strings (CSs) in the context of a supersymmetric (SUSY) left-right model. The spontaneous SU(2)R symmetry breaking occurs during a stage of T-model (Higgs) inflation (TI) driven by an SU(2)R triplet superfield which inflates away the produced mo...
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2025-01-01
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| Series: | Journal of High Energy Physics |
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| Online Access: | https://doi.org/10.1007/JHEP01(2025)178 |
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| author | C. Pallis |
| author_facet | C. Pallis |
| author_sort | C. Pallis |
| collection | DOAJ |
| description | Abstract We present the formation of metastable cosmic strings (CSs) in the context of a supersymmetric (SUSY) left-right model. The spontaneous SU(2)R symmetry breaking occurs during a stage of T-model (Higgs) inflation (TI) driven by an SU(2)R triplet superfield which inflates away the produced monopoles. The subsequent breaking of the remaining U(1)R × U(1) B−L symmetry, triggered due to an instability arising in the system of a pair of SU(2)R doublet superfields, leads to the production of CSs. TI is based on a quartic potential, is consistent with data thanks to the adopted hyperbolic Kähler geometry and may be followed by successful non-thermal leptogenesis. The decay of the produced CSs interprets the recent observations from PTA experiments on the stochastic background of gravitational waves with values of the superpotential coupling constants close to 10−6 − 10−8 and symmetry-breaking scales a little lower than the SUSY grand unified theory scale. A solution to the μ problem of the MSSM is also accommodated provided that μ is two to three orders of magnitude lower than the gravitino mass. The issue of the gauge coupling unification is also discussed. |
| format | Article |
| id | doaj-art-65a9027e81224b2c8d0fb10024359c47 |
| institution | Kabale University |
| issn | 1029-8479 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Journal of High Energy Physics |
| spelling | doaj-art-65a9027e81224b2c8d0fb10024359c472025-02-09T12:06:51ZengSpringerOpenJournal of High Energy Physics1029-84792025-01-012025114210.1007/JHEP01(2025)178T-model Higgs inflation and metastable cosmic stringsC. Pallis0School of Civil Engineering, Faculty of Engineering, Aristotle University of ThessalonikiAbstract We present the formation of metastable cosmic strings (CSs) in the context of a supersymmetric (SUSY) left-right model. The spontaneous SU(2)R symmetry breaking occurs during a stage of T-model (Higgs) inflation (TI) driven by an SU(2)R triplet superfield which inflates away the produced monopoles. The subsequent breaking of the remaining U(1)R × U(1) B−L symmetry, triggered due to an instability arising in the system of a pair of SU(2)R doublet superfields, leads to the production of CSs. TI is based on a quartic potential, is consistent with data thanks to the adopted hyperbolic Kähler geometry and may be followed by successful non-thermal leptogenesis. The decay of the produced CSs interprets the recent observations from PTA experiments on the stochastic background of gravitational waves with values of the superpotential coupling constants close to 10−6 − 10−8 and symmetry-breaking scales a little lower than the SUSY grand unified theory scale. A solution to the μ problem of the MSSM is also accommodated provided that μ is two to three orders of magnitude lower than the gravitino mass. The issue of the gauge coupling unification is also discussed.https://doi.org/10.1007/JHEP01(2025)178Cosmology of Theories BSMEarly Universe Particle PhysicsPhase Transitions in the Early UniverseSupersymmetry |
| spellingShingle | C. Pallis T-model Higgs inflation and metastable cosmic strings Journal of High Energy Physics Cosmology of Theories BSM Early Universe Particle Physics Phase Transitions in the Early Universe Supersymmetry |
| title | T-model Higgs inflation and metastable cosmic strings |
| title_full | T-model Higgs inflation and metastable cosmic strings |
| title_fullStr | T-model Higgs inflation and metastable cosmic strings |
| title_full_unstemmed | T-model Higgs inflation and metastable cosmic strings |
| title_short | T-model Higgs inflation and metastable cosmic strings |
| title_sort | t model higgs inflation and metastable cosmic strings |
| topic | Cosmology of Theories BSM Early Universe Particle Physics Phase Transitions in the Early Universe Supersymmetry |
| url | https://doi.org/10.1007/JHEP01(2025)178 |
| work_keys_str_mv | AT cpallis tmodelhiggsinflationandmetastablecosmicstrings |