SM*A*S*H

2016/10/17 by Andreas Ringwald, Ringwald, Andreas
Physics and Astronomy · #Cosmology and Gravitation Theories #Cosmology and Nongalactic Astrophysics (astro-ph.CO) #Dark Matter and Cosmic Phenomena #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #High Energy Physics - Theory (hep-th) #Particle physics theoretical and experimental studies

paper · pdf · doi:10.48550/arxiv.1610.05040

openalex publication_date 2016/10/17 · openalex created_date 2024/04/11 · openalex updated_date 2026/07/28

Abstract

We present a minimal model for particle physics and cosmology. The Standard Model (SM) particle content is extended by three right-handed SM-singlet neutrinos N_i and a vector-like quark Q, all of them being charged under a global lepton number and Peccei-Quinn (PQ) U(1) symmetry which is spontaneously broken by the vacuum expectation value v_sigma around 10¹¹ GeV of a SM-singlet complex scalar field sigma. Five fundamental problems -- neutrino oscillations, baryogenesis, dark matter, inflation, strong CP problem -- are solved at one stroke in this model, dubbed "SM*A*S*H" (Standard Model*Axion*Seesaw*Higgs portal inflation). It can be probed decisively by upcoming cosmic microwave background and axion dark matter experiments.

Related

• SMASH-ing Vacuum Metastability
• Standard Model - Axion - Seesaw - H portal inflation
• Prospects to scrutinise or smash SM*A*S*H
• The minimal cosmological standard model
• A Minimal Supersymmetric Model of Particle Physics and the Early Universe