Zobrazeno 1 - 10
of 3 284
pro vyhledávání: '"A. Pallis"'
Autor:
Pallis, C.
We present the formation of metastable cosmic strings (CSs) in the context of a supersymmetric (SUSY) left-right model. The SU(2)R symmetry breaking occurs during a stage of T-model (Higgs) inflation (TI) driven by an SU(2)R triplet superfield which
Externí odkaz:
http://arxiv.org/abs/2409.14338
Autor:
Pallis, C.
We review a number of unimodular no-scale supergravity models with F-term SUSY breaking which support technically natural de Sitter vacua. A variant of these models develops a stage of inflection-point inflation which can be realized for subplanckian
Externí odkaz:
http://arxiv.org/abs/2405.10039
Autor:
Pallis, C.
Publikováno v:
Universe 10 (2024) 5, 211
We consider F-term hybrid inflation (FHI) and SUSY breaking in the context of a B-L extension of MSSM which largely respects a global U(1) R symmetry. The hidden sector Kaehler manifold enjoys an enhanced SU(1,1)/U(1) symmetry with the scalar curvatu
Externí odkaz:
http://arxiv.org/abs/2403.09385
Autor:
Lazarides, G., Pallis, C.
Publikováno v:
Phys. Rev. D 108, no.9, 095055 (2023)
We consider F-term hybrid inflation and supersymmetry breaking in the context of a model which largely respects a global U(1) R symmetry. The Kaehler potential parameterizes the Kaehler manifold with an enhanced U(1)x(SU(1,1)/U(1)) symmetry, where th
Externí odkaz:
http://arxiv.org/abs/2309.04848
Autor:
Pallis, C.
We focus on a simple, natural and predictive T model of inflation in Supergravity employing as inflaton the Higgs field which leads to the spontaneous breaking of a U(1)_(B-L) symmetry at the SUSY GUT scale. We use a renormalizable superpotential, fi
Externí odkaz:
http://arxiv.org/abs/2307.14652
Autor:
Pallis, C.
Publikováno v:
PoS CORFU2022 (2023) 101
Models of induced-gravity inflation are formulated within Supergravity employing as inflaton the Higgs field which leads to a spontaneous breaking of a U(1)_{B-L} symmetry at Mgut=2x10^16 GeV. We use a renormalizable superpotential, fixed by a U(1) R
Externí odkaz:
http://arxiv.org/abs/2305.00523
Autor:
Pallis, C.
We propose a modification of no-scale supergravity models which incorporates sgoldstino stabilization and supersymmetry (SUSY) breaking with a tunable cosmological constant by introducing a Kahler potential which yields a kinetic pole of order one. T
Externí odkaz:
http://arxiv.org/abs/2302.12214
Autor:
Pallis, C.
New no-scale supergravity models with F-term SUSY breaking are introduced, adopting Kaehler potentials parameterizing flat or curved (compact or non-compact) Kaehler manifolds. We systematically derive the form of the superpotentials leading to Minko
Externí odkaz:
http://arxiv.org/abs/2211.05067
Autor:
Pallis, C.
We consider the impact of a kinetic pole of order one or two on the non-supersymmetric model of hybrid inflation. These poles arise due to logarithmic Kaehler potentials which control the kinetic mixing of the inflaton field and parameterize hyperbol
Externí odkaz:
http://arxiv.org/abs/2209.09682
Autor:
Pallis, C.
We present novel realizations of E- and T-model inflation within Supergravity which are largely associated with the existence of a pole of order one and two respectively in the kinetic term of the inflaton superfield. This pole arises due to the sele
Externí odkaz:
http://arxiv.org/abs/2209.08325