New Kähler invariant Fayet–Iliopoulos terms in supergravity and cosmological applications

Antoniadis, Ignatios; Rondeau, François

doi:10.1140/epjc/s10052-020-7912-z

Cited by 16 publications

(19 citation statements)

References 28 publications

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“…The generation mechanisms and the effect of such terms constitute an interesting open problem related to supersymmetry breaking, that becomes more restrictive in supergravity and even more in extended supersymmetric theories. New FI terms, that do not require gauging the Rsymmetry when coupled to supergravity, were written recently within N = 1 [15][16][17][18] and N = 2 [19] supersymmetry; their bosonic part is identical to an ordinary constant FI term, while their fermionic dependence is highly non-trivial. The first step of these studies is obviously the analysis of the effects of the standard FI term added to the SDBI action, that we discuss in this work.…”

Section: Jhep05(2020)111mentioning

confidence: 99%

Note on supersymmetric Dirac-Born-Infeld action with Fayet-Iliopoulos term

Antoniadis

Jiang

Lacombe

2020

J. High Energ. Phys.

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We study the Dirac-Born-Infeld (DBI) action with one linear and one nonlinear supersymmetry in the presence of a constant Fayet-Iliopoulos (FI) D-term added explicitly or through a deformation of supersymmetry transformations. The linear supersymmetry appears to be spontaneously broken since the D auxiliary field gets a nonvanishing vacuum expectation value and an extra term proportional to the FI parameter involving fermions emerges in the non-linear formulation of the action written recently. However in this note, we show that on-shell this action is equivalent to a standard supersymmetric DBI action without FI term but with redefined tension, at least up to order of mass-dimension 12 effective interactions.

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Section: Jhep05(2020)111mentioning

confidence: 99%

Note on supersymmetric Dirac-Born-Infeld action with Fayet-Iliopoulos term

Antoniadis

Jiang

Lacombe

2020

J. High Energ. Phys.

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“…The model written in the Kähler frame where the gauge symmetry becomes an R-symmetry in Equation (89) can not be consistently coupled to L FI . A generalized Kähler invariant FI term has been built in [32,33]" [17].…”

Section: Reviewmentioning

confidence: 99%

“…By choosing the initial condition ρ * = 0.445 and ρ end = 1.155, we get the results N = 58, n s = 0.96, r = 0.01 and A s = 2.2 × 10 −9 , which agree with Planck'15 data as shown in Figure 4. Note that an application of the new FI term in no-scale supergravity model for inflation can be found for example in [33,34].…”

Section: A Small Field Inflationmentioning

confidence: 99%

Challenges in Supersymmetric Cosmology

Antoniadis

Chatrabhuti

2020

Symmetry

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We discuss the possibility that inflation is driven by supersymmetry breaking with the scalar component of the goldstino superfield (sgoldstino) playing the role of the inflaton and charged under a gauged U ( 1 ) R-symmetry. Imposing a linear superpotential allows us to satisfy easily the slow-roll conditions, avoiding the so-called η -problem, and leads to an interesting class of small field inflation models, characterised by an inflationary plateau around the maximum of the scalar potential near the origin, where R-symmetry is restored with the inflaton rolling down to a minimum describing the present phase of the Universe. Inflation can be driven by either an F- or a D-term, while the minimum has a positive tuneable vacuum energy. The models agree with cosmological observations and in the simplest case predict a rather small tensor-to-scalar ratio of primordial perturbations. We propose a generalisation of Fayet-Iliopoulos model as a microscopic model leading to this class of inflation models at low energy.

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“…(92) can not be consistently coupled to L FI . A generalized Kähler invariant FI term has been built in [21,22].…”

Section: The Conformal D'alembertian Is Given Bymentioning

confidence: 99%

“…4. Note that an application of the new FI term in no-scale supergravity model for inflation can be found for example in [22,23].…”

Section: A Small Field Inflation Model From Supergravity With Observamentioning

confidence: 99%

Challenges in String and Supersymmetric Cosmology

Antoniadis¹,

Chatrabhuti²

2020

Proceedings of the International Conference on Neutrinos and Dark Matter (NDM-2020)

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We discuss the possibility that inflation is driven by supersymmetry breaking with the superpartner of the goldstino (sgoldstino) playing the role of the inflaton. Imposing an R-symmetry allows to satisfy easily the slow-roll conditions, avoiding the so-called η-problem, and leads to an interesting class of small field inflation models, characterised by an inflationary plateau around the maximum of the scalar potential near the origin, where R-symmetry is restored with the inflaton rolling down to a minimum describing the present phase of the Universe. Inflation can be driven by either an For a D-term, while the minimum has a positive tuneable vacuum energy. The models agree with cosmological observations and in the simplest case predict a rather small tensor-to-scalar ratio of primordial perturbations.

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New Kähler invariant Fayet–Iliopoulos terms in supergravity and cosmological applications

Cited by 16 publications

References 28 publications

Note on supersymmetric Dirac-Born-Infeld action with Fayet-Iliopoulos term

Note on supersymmetric Dirac-Born-Infeld action with Fayet-Iliopoulos term

Challenges in Supersymmetric Cosmology

Challenges in String and Supersymmetric Cosmology

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