Events Archive

As the age of WIMP-scale dark matter (DM) draws to a close thanks to the ever-increasing sensitivity of direct detection experiments, the majority of sub-GeV DM parameter space remains to be explored. Sub-GeV DM can excite electronic transitions in a variety of molecular and nano-scale systems which have sub-eV scale thresholds.

The advent of the Gaia era has led to potentially revolutionary understanding of dark matter dynamics in our galaxy, which has important consequences for direct detection experiments. In this talk, I will discuss the effects of various dark matter substructures inferred from the Gaia data on possible direct detection signals at next-generation...

For the last 5 years or so, there has been a major effort towards the calculation of two-loop 5-point QCD amplitudes and their corresponding LHC cross-sections at NNLO. Very recently, the first such calculation - 3-photon production - was completed [arXiv:1911.00479]. I will explain the novel features, and lessons learned, in regard to 5-point...

The nature of dark matter (DM) in the Universe remains one of the great open questions of particle astrophysics and cosmology today. The WIMP (weakly interacting massive particle) DM paradigm has fallen, leaving us with a wide range of possible DM models and signatures. New methods and ideas are required to efficiently progress.

Fuzzy Dark Matter (FDM) is a model of dark matter consisting of an ultralight scalar whose quantum mechanical nature is manifest at kiloparsec scales.  As such, an object moving through an FDM halo will experience a different drag force due to dynamical friction than an object passing through a classical dark matter halo.  This effect is...

In its high-luminosity phase, the CERN Large Hadron Collider will produce x10 more data, while the computing power for data processing will not scale accordingly. Particle physicists need novel solutions to accomplish the scientific  mission of the LHC. Deep Learning has the potential to be the game changer that could solve the problem.

Very light axions are a generic prediction of string compactifications. If cosmic strings associated with these axions were produced in the early universe, they quickly approach a so-called scaling solution, such that strings persist in the sky today.  I will present some remarkable signals of such strings coupled to photons.

Motivated by theories of neutral naturalness, I will argue that Mirror Stars are a generic possibility in any hidden sector with analogues of Standard Model electromagnetism and nuclear physics.

This talk will follow the discussions found in https://arxiv.org/abs/1711.04773 and https://arxiv.org/abs/1902.04082.