.High Energy Phenomenology, Experiment, & Cosmology Events
Spring 2022
January 19, 2022
4:00 pm – 5:00 pm (CDT)
Manifesting the Imprints of Elastic and Exothermic Scatterings Among Dark Matter Particles in Astrophysical/Cosmological Observations
Speaker: Heejung Kim (Institute for Basic Science)Host: Doojin Kim
In this talk, I will give an overview of how elastic and exothermic scatterings among dark matter particles give rise to distinctive features in late-time structure formation. I will explain how astrophysical observations on the structures of galaxies can probe such unique features, and discuss how the observations can help [...]
The Geometric SMEFT Description of Curved Higgs Field Space(s)
Speaker: Mike Trott (Niels Bohr Institute)Host: Doojin Kim
In recent years, the effective field theory approach to the Standard Model, the SMEFT, has been used to study LHC data with ever increasing theoretical precision and sophistication. However, the complexity of this theory lead to several barriers to substantial theoretical progress. In particular, the explosion in the number of parameters in the SMEFT as [...]From Mini to Micro: Zooming in on New Physics Interpretations of the MiniBooNE Excess at the MicroBooNE Experiment
Speaker: Matheus Hostert (Perimeter Institute & University of Minnesota)Host: Doojin Kim
The MicroBooNE experiment has recently tested a few interpretations of the MiniBooNE excess. I will discuss the impact of MicroBooNE's searches on new physics models and show that it still does not provide a definitive test of the MiniBooNE anomaly. I will also discuss the broader landscape of models with MeV [...]Machine Learned Collider Observables, Noise-Aware Qubit Assignment
Speaker: Prasanth Shyamsundar (Fermilab)Host: Doojin Kim
In the first part of this talk, I will describe a new machine learning technique to learn sensitive event observables to analyze collider data. In the second part, I will discuss a technique for mitigating the effect of hardware noise on quantum computations in present day quantum hardware.The Hunt for Gluonic ALPs
Speaker: Zhen Liu (University of Minnesota)Host: Doojin Kim
Axion coupling to gluons is the defining property that connects it to the Strong CP puzzle. People have recently started to consider heavier axions, often dubbed Axion-Like-Particles (ALPs), as a generic EFT for pseudo-scalars. However, the effects have mostly been focused on other couplings as they are much easier to calculate [...]Beyond the WIMP Paradigm
Speaker: Wei Xue (University of Florida)Host: Doojin Kim
Weakly-interacting massive particle (WIMP) has been the leading paradigm of dark matter for decades. Still, experimental searches for non-gravitational signatures of WIMPs have not found any positive evidence yet. It motivates us to think about new search strategies and novel dark matter models. My talk consists of the two directions [...]Dark Solar Wind
Speaker: Jae Hyeok Chang (University of Maryland)Host: Doojin Kim
I will talk about light dark sector particles that weakly couple to ordinary particles but strongly couple to each other. Such particles can be produced from the Sun and fully thermalized with its own temperature. The resulting dark fluid accelerates under its own thermal pressure and attains a highly relativistic [...]Planetary Defense and Space Quantum Technologies for Fundamental Physics: Dark Matter, Gravity, Fifth Forces, and Cosmic Neutrinos
Speaker: Yu-Dai Tsai (Fermilab)Host: Doojin Kim
In this talk, I will talk about using planetary/asteroidal data and space quantum technologies to study fundamental physics. We first show a proposal using space quantum clocks to study solar-halo ultralight dark matter, motivated by the NASA deep space atomic clock (DSAC) and Parker Solar Probe (PSP). We then discuss [...]