New Kähler invariant Fayet–Iliopoulos terms in supergravity and cosmological applications
| Autor: | François Rondeau, Ignatios Antoniadis |
|---|---|
| Přispěvatelé: | Laboratoire de Physique Théorique et Hautes Energies (LPTHE), Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS) |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
High Energy Physics - Theory
inflaton: potential Physics and Astronomy (miscellaneous) 530 Physics lcsh:Astrophysics Scalar potential cosmic background radiation multiplet: chiral String theory 01 natural sciences vacuum state: energy Theoretical physics High Energy Physics::Theory General Relativity and Quantum Cosmology Vacuum energy flat direction lcsh:QB460-466 0103 physical sciences lcsh:Nuclear and particle physics. Atomic energy. Radioactivity string model 010306 general physics Engineering (miscellaneous) Multiplet gravitino: mass Physics 010308 nuclear & particles physics [PHYS.HTHE]Physics [physics]/High Energy Physics - Theory [hep-th] Supergravity potential: scalar High Energy Physics::Phenomenology Inflaton 16. Peace & justice U(1) abelian inflation: model High Energy Physics - Phenomenology superfield: chiral multiplet: vector axion [PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph] lcsh:QC770-798 Gravitino supergravity mass: gravitation U-1 |
| Zdroj: | Antoniadis, I.; Rondeau, F. (2020). New Kähler invariant Fayet–Iliopoulos terms in supergravity and cosmological applications. The European physical journal. C, Particles and fields, 80(4) Springer 10.1140/epjc/s10052-020-7912-z European Physical Journal C: Particles and Fields European Physical Journal C: Particles and Fields, Springer Verlag (Germany), 2020, 80 (4), pp.346. ⟨10.1140/epjc/s10052-020-7912-z⟩ European Physical Journal C: Particles and Fields, Vol 80, Iss 4, Pp 1-14 (2020) European Physical Journal |
| ISSN: | 1434-6044 1434-6052 |
| Popis: | Recently, a new type of constant Fayet-Iliopoulos (FI) terms was introduced in $\mathcal{N}=1$ supergravity, which do not require the gauging of the $R$-symmetry. We revisit and generalise these constructions, building a new class of K\"ahler invariant FI terms parametrised by a function of the gravitino mass as functional of the chiral superfields, which is then used to describe new models of inflation. They are based on a no-scale supergravity model of the inflaton chiral multiplet, supplemented by an abelian vector multiplet with the new FI-term. We show that the inflaton potential is compatible with the CMB observational data, with a vacuum energy at the minimum that can be tuned to a tiny positive value. Finally, the axionic shift symmetry can be gauged by the $U(1)$ which becomes massive. These models offer a mechanism for fixing the gravitino mass in no-scale supergravities, that corresponds to a flat direction of the scalar potential in the absence of the new FI-term; its origin in string theory is an interesting open problem. Comment: 17 pages, 4 figures. Published version |
| Databáze: | OpenAIRE |
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