Single Field Inflation in Supergravity with a $U(1)$ Gauge Symmetry

Abstract

A single field inflation based on a supergravity model with a shift symmetry and $U(1)$ extension of the MSSM is analyzed. We show that one of the real components of the two $U(1)$ charged scalar fields plays the role of inflaton {with} an effective scalar potential similar to the "new chaotic inflation" scenario. Both non-anomalous and anomalous (with Fayet-Iliopoulos term) $U(1)$ are studied. We show that the non-anomalous $U(1)$ scenario is consistent with data of the cosmic microwave background and recent astrophysical measurements. A possible kinetic mixing between $U(1)$ {and} $U(1{)}_{B-L}$ is considered in order to allow for natural decay channels of the inflaton, leading to a reheating epoch. Upper limits on the reheating temperature thus turn out to favour an intermediate ($\sim \mathcal{O}(10^{13})$ GeV) scale $B-L$ symmetry breaking.

16 pages, 2 figures

References in corpus (13)

• A Joint Analysis of BICEP2/Keck Array and Planck Data
• New models of chaotic inflation in supergravity
• General inflaton potentials in supergravity
• Supersymmetric Hybrid Inflation with Non-Minimal Kahler potential
• Testing String Theory with CMB
• Spontaneous B-L Breaking as the Origin of the Hot Early Universe
• Embedding inflation into the Standard Model - more evidence for classical scale invariance
• Beam-helicity asymmetry arising from deeply virtual Compton scattering measured with kinematically complete event reconstruction
• Large-Field Inflation and Supersymmetry Breaking
• Three-form multiplet and Inflation
• Inflation in Supersymmetric SU(5)
• Inflation with Fayet-Iliopoulos Terms
• From Hybrid to Quadratic Inflation With High-Scale Supersymmetry Breaking

Cited by in corpus (10)

• The Inflaton Portal to a Highly decoupled EeV Dark Matter Particle
• Signatures of Non-thermal Dark Matter with Kination and Early Matter Domination: Gravitational Waves versus Laboratory Searches
• Shift Symmetry and Higgs Inflation in Supergravity with Observable Gravitational Waves
• Kinetically Modified Non-Minimal Higgs Inflation in Supergravity
• Gravitational Waves, mu Term & Leptogenesis from B-L Higgs Inflation in Supergravity
• Sneutrino driven GUT Inflation in Supergravity
• Variants of Kinetically Modified Non-Minimal Higgs Inflation in Supergravity
• No-scale hybrid inflation with R-symmetry breaking
• A Dynamic Modification to Sneutrino Chaotic Inflation
• Modified hybrid inflation in no-scale SUGRA with suppressed $R$-symmetry breaking