AdS swampland conjectures and light fermions
Entidad
UAM. Departamento de Física TeóricaEditor
ElsevierFecha de edición
2021-09-29Cita
10.1016/j.physletb.2021.136691
Physics Letters B 822.10: 136691
ISSN
0370-2693 (print); 1873-2445 (online)DOI
10.1016/j.physletb.2021.136691Proyecto
Gobierno de España. SEV-2016-0597; Gobierno de España. GC2018-095976-B-C21; Gobierno de España. FPA2016-78645-PVersión del editor
https://doi.org/10.1016/j.physletb.2021.136691Materias
Inflation; Supergravity; Cosmos; FísicaDerechos
© 2021 The Author(s)Resumen
We consider constraints on D-dimensional theories in MD, dSD and AdSD backgrounds in the light of
AdS swampland conjectures as applied to their compactification in a circle. In particular we consider the
non-SUSY AdS instability conjecture and the AdS distance conjecture. For MD and dSD vacua the results
may be summarized by a light fermion conjecture which states that in theories with ΔD ≥ 0 and a positive
first non-vanishing supertrace (−1)k+1StrM2k > 0, a surplus of light fermions with mass mf < Δ1/DD must
be present. For dSD this is supported by both AdS swampland conjectures. On the contrary, the cases of
MD and AdSD can be made consistent with the mild but not the strong version of the AdS Distance
conjecture, since the KK tower in the lower d-dim theory will scale as m < Δαd with α = 1/d. The above
constraints also suggest that the Standard Model of particle physics would be inconsistent in Minkowski
space but consistent in dS if the lightest neutrino is Dirac and lighter than the cosmological constant
scale
Lista de ficheros
Google Scholar:Gonzalo Badía, Eduardo
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Ibañez Santiago, Luis Enrique
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Valenzuela, Irene
Lista de colecciones del ítem
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