# Standard model from a supergravity model with a naturally small cosmological constant

@article{Li2020StandardMF, title={Standard model from a supergravity model with a naturally small cosmological constant}, author={Shing Yan Li and Yueyin Qiu and S. H. H. Tye}, journal={Journal of High Energy Physics}, year={2020}, volume={2021} }

Guided by the naturalness criterion for an exponentially small cosmological constant, we present a string theory motivated 4-dimensional N\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$ \mathcal{N} $$\end{document} = 1 non-linear supergravity model (or its linear version with a nilpotent superfield) with…

## 7 Citations

### A novel solution to the gravitino problem

- Materials ScienceJournal of High Energy Physics
- 2023

In a general phenomenological model with local supersymmetry, the amount of massive gravitinos produced in early universe tends to violate the known dark matter density bound by many orders of…

### Axi-Higgs cosmology

- Physics
- 2021

If the electroweak Higgs vacuum expectation value v in early universe is ∼ 1 % higher than its present value v0=246 GeV, the 7Li puzzle in BBN and the CMB/ΛCDM tension with late-universe measurements…

### Higgs in Nilpotent Supergravity: Vacuum Energy and Festina Lente

- Physics
- 2022

In this note we study supergravity models with constrained superﬁelds. We construct a supergravity framework in which all (super)symmetry breaking dynamics happen in vacuum with naturally (or…

### Yoga Dark Energy: natural relaxation and other dark implications of a supersymmetric gravity sector

- PhysicsJournal of Cosmology and Astroparticle Physics
- 2022

We construct a class of 4D 'yoga' (naturally relaxed) models for which the gravitational response of heavy-particle vacuum energies is strongly suppressed. The models contain three ingredients: (i) a…

### Who's Afraid of the Supersymmetric Dark? The Standard Model vs Low‐Energy Supergravity

- PhysicsFortschritte der Physik
- 2022

Use of supergravity equations in astronomy and late‐universe cosmology is often criticized on three grounds: (i) phenomenological success usually depends on the supergravity form for the scalar…

### J C A P 0 8 ( 2 0 2 1 ) 0 5 7 ournal of C osmology and A stroparticle P hysics

- 2021

### Unimodular vs nilpotent superfield approach to pure dS supergravity

- PhysicsJournal of High Energy Physics
- 2021

Recent progress in understanding de Sitter spacetime in supergravity and string theory has led to the development of a four dimensional supergravity with spontaneously broken supersymmetry allowing…

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