The axion is a highly motivated elementary particle that could address two fundamental
questions in physics—the strong charge-parity (CP) problem and the dark matter mystery …

A permanent electric dipole moment (EDM) of a particle or system is a separation of charge
along its angular momentum axis and is a direct signal of T violation and, assuming CPT …

The European Particle Physics Strategy Update (EPPSU) process takes a bottom-up
approach, whereby the community is first invited to submit proposals (also called inputs) for …

A new class of solutions to the electroweak hierarchy problem is presented that does not
require either weak-scale dynamics or anthropics. Dynamical evolution during the early …

A bstract Motivated by the intimate connection between the strong CP problem and the flavor
structure of the Standard Model, we present a flavor model that revives and extends the …

A bstract We study the phenomenology of electric dipole moments (EDMs) induced in
various scalar leptoquark models. We consider generic leptoquark couplings to quarks and …

We show that proton storage ring experiments designed to search for proton electric dipole
moments can also be used to look for the nearly dc spin precession induced by dark energy …

Permanent electric dipole moments (EDMs) of fundamental particles provide powerful
probes for physics beyond the Standard Model. We propose to search for the EDM of …

We propose a new kind of axion model derived from the grand unified theory (GUT) based
on SU (5)× U (1) PQ. We demonstrate that, given a certain charge assignment and potential …

We examine the theoretical possibility for the heavy QCD axion to induce slow-roll inflation
while solving the strong CP problem through the Peccei-Quinn mechanism. If the …