Chameleons on the Racetrack

Abstract

We modify the ansatz for embedding chameleon scalars in string theory proposed in [1] by considering a racetrack superpotential with two KKLT-type exponentials $e^{ia\varrho }$ instead of one. This satisfies all experimental constraints, while also allowing for the chameleon to be light enough on cosmological scales to be phenomenologically interesting.

11 pages, 1 figure

References in corpus (6)

• Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC
• Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC
• Laboratory constraints on chameleon dark energy and power-law fields
• Anomalous coupling of scalars to gauge fields
• Towards a UV Completion for Chameleon Scalar Theories
• Chameleonic inflation

Cited by in corpus (8)

• Beyond the Cosmological Standard Model
• Tests of Chameleon Gravity
• Chameleon Field Theories
• Chameleons in the Early Universe: Kicks, Rebounds, and Particle Production
• Yoga Dark Energy: Natural Relaxation and Other Dark Implications of a Supersymmetric Gravity Sector
• Dynamics of Supersymmetric Chameleons
• Chameleonic Theories: A Short Review
• A natural cosmological constant from chameleons