The exploration of the universe has recently entered a new era thanks to the multi-
messenger paradigm, characterized by a continuous increase in the quantity and quality of …

We present an updated review of Lorentz invariance tests in effective field theories (EFTs) in
the matter as well as in the gravity sector. After a general discussion of the role of Lorentz …

The present white paper is submitted as part of the “Snowmass” process to help inform the
long-term plans of the United States Department of Energy and the National Science …

I show that it is possible to formulate the Relativity postulates in a way that does not lead to
inconsistencies in the case of spacetimes whose short-distance structure is governed by an …

Motivated by ideas about quantum gravity, a tremendous amount of effort over the past
decade has gone into testing Lorentz invariance in various regimes. This review …

I review the current status of phenomenological programs inspired by quantum-spacetime
research. I stress in particular the significance of results establishing that certain data …

I propose a general class of spacetimes whose structure is governed by observer-
independent scales of both velocity (c) and length (Planck length), and I observe that these …

Ground-based observatories have been collecting 0.2–20 TeV gamma-rays from blazars for
about twenty years. These gamma-rays can experience absorption along the line of sight …

Based on string theory, black hole physics, doubly special relativity and some'thought'
experiments, minimal distance and/or maximum momentum are proposed. As alternatives to …

Investigation at a φ-factory can shed light on several debated issues in particle physics. We
discuss:(i) recent theoretical development and experimental progress in kaon physics …