Modular Cosmology, Thermal Inflation, Baryogenesis and Predictions for Particle Accelerators
| dc.creator | Jeong, Donghui | |
| dc.creator | Kadota, Kenji | |
| dc.creator | Park, Wan-Il | |
| dc.creator | Stewart, Ewan D. | |
| dc.date | 2004-06-11 | |
| dc.date | 2004-07-22 | |
| dc.date.accessioned | 2026-07-07T10:49:07Z | |
| dc.date.available | 2026-07-07T10:49:07Z | |
| dc.description | Modular cosmology is plagued by overproduction of unwanted relics, gravitinos and especially moduli, at relatively low energy scales. Thermal inflation provides a compelling solution to this moduli problem, but invalidates most baryogenesis scenarios. We propose a simple model in which the MSSM plus neutrino mass term $(LH_u)^2$ is supplemented by a minimal flaton sector to drive the thermal inflation, and make two crucial assumptions: the flaton vacuum expectation value generates the $μ$-term of the MSSM and $m_L^2 + m_{H_u}^2 < 0$. The second assumption is particularly interesting in that it violates a well known constraint, implying that there exists a nearby deep non-MSSM vacuum, and provides a clear signature of our model which can be tested at future particle accelerators. We show that our model leads to thermal inflation followed by Affleck-Dine leptogenensis along the $LH_u$ flat direction. A key feature of our leptogenesis scenario is that the $H_uH_d$ flat direction is also induced to temporarily acquire a large value, playing a crucial role in the leptogenesis, as well as dynamically shielding the field configuration from the deep non-MSSM minimum, ensuring that the fields relax into our MSSM vacuum. | |
| dc.description | v3; 19 pages, 3 figures; added a reference for section 1 | |
| dc.identifier | https://arxiv.org/abs/hep-ph/0406136 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/0406136 | |
| dc.identifier | JHEP0411:046,2004 | |
| dc.identifier | doi:10.1088/1126-6708/2004/11/046 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/184113 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Modular Cosmology, Thermal Inflation, Baryogenesis and Predictions for Particle Accelerators | |
| dc.type | text |