8 papers
Automorphic Structures of Heterotic Vacua
Jacob M. Leedom, Nicole Righi, Alexander Westphal
We study moduli stabilization in 4D effective field theories with Sp(4,) self-duality inspired by heterotic orbifold compactifications with Wilson lines. The target-spa…
Axions at the meV Crossroads: Theory, Cosmology, Astrophysics, and Experiments
Michele Cicoli, Francesco D'Eramo, Luca Di Luzio +18
The meV mass range has emerged as a focal point in axion physics, where advances in theory, cosmology, astrophysics, and experimental techniques converge. Axions in this mass range…
The COSMIC WISPers White Paper: The physics case for Weakly Interacting Slim Particles
Ariel Arza, Deniz Aybas, Shyam Balaji +124
Axions and other very weakly interacting slim particles (WISPs), with masses below 1 GeV, arise naturally in many extensions of the Standard Model of particle physics. In particula…
Open Strings and Heterotic Instantons
Rafael Ãlvarez-GarcÃa, Christian KneiÃl, Jacob M. Leedom +1
Motivated by closed string perturbation theory arguments by S. Shenker, we consider non-perturbative effects of characteristic strength , with th…
Exploring the Dark Universe: A European Strategy for Axions and other WISPs Discovery
Deniz Aybas, Francesca Calore, Michele Cicoli +17
Axions and other very weakly interacting slim (with 1 GeV) particles (WISPs) are a common feature of several extensions of the Standard Model of Particle Physics. The search…
On (de Sitter) Vacua in Heterotic String Theory
Nicole Righi
Heterotic toroidal orbifolds are a powerful framework for testing our understanding of string vacua. We review recent advances in heterotic model building, from constructing new va…