Conveners
DM1: Axion and Axion-Like Dark Matter I
- Moriyama ()
Dr
Alexander Leder
(UC Berkeley)
9/9/19, 2:00 PM
Dark matter
Oral presentation in parallel session
Axions represent a leading class of dark matter candidate that has gained considerable interest in recent years. In order to probe the largely unexplored axion parameter space across multiple frequency decades, new experimental techniques are required. The HAYSTAC (Haloscope At Yale Sensitive To Axion Cold dark matter) experiment is a tunable microwave cavity experiment searching for axions,...
Dr
Xiaoyue Li
(Max Planck Institute for Physics)
9/9/19, 2:20 PM
Dark matter
Oral presentation in parallel session
Axions emerge naturally from the Peccei-Quinn (PQ) mechanism which addresses the absence of CP violation in the strong interaction, and they can make up the cold dark matter in the universe.
If PQ symmetry breaking had occurred before inflation, the axion mass would likely range from $\sim40 ~\mu$eV to $\sim1$ meV, which is yet to be explored experimentally.
We present a new experiment...
Prof.
Kent Irwin
(Stanford University)
9/9/19, 2:40 PM
Dark matter
Oral presentation in parallel session
One of the most enduring mysteries in particle physics is the nature of the non-baryonic dark matter that makes up 85% of the matter in the universe. The QCD axion, which solves the strong CP problem and the hierarchy problem, is also one of the most strongly motivated dark matter candidates. After recent theoretical work, it has become clear that the QCD axion can be naturally produced in the...
Dr
Yuta Michimura
(University of Tokyo)
9/9/19, 3:00 PM
Dark matter
Oral presentation in parallel session
Axion is a hypothetical particle originally introduced to solve the strong CP problem in QCD, and a plentitude of axion-like particles (ALPs) are predicted by high energy physics such as string theory. Also, ALPs which have a mass smaller than eV are cosmologically well-motivated candidates of dark matter. Recently, we proposed a new experiment to search for axion dark matter by measuring the...
Dr
Jonathan Ouellet
(Massachusetts Institute of Technology)
9/9/19, 3:30 PM
Dark matter
Oral presentation in parallel session
The presence of dark matter provides some of the most tangible evidence for the existence of physics beyond the Standard Model. Separately, long standing problems within the Standard Model point to new feebly interacting particles to help explain away unnatural fine-tunings. The axion was originally proposed to explain the Strong-CP problem, but was subsequently shown to be a uniquely elegant...
