Topic: Experimental Particle Physics Seminar
Host: Daniel Naim
Title: What's below the energy threshold of noble liquid TPCs?
Zoom: TBD
Abstract:
Noble liquid Time Projection Chambers (TPCs) have demonstrated exceptional sensitivities in searches for rare processes, and produced a range of world leading experimental results in dark matter and neutrino physics. However, their full potentials are yet to be exploited. In this talk, I will describe what limits the low energy sensitivity of argon and xenon TPCs, and what are the possible approaches to boost their performance in the low energy regime. The possible physics reach of these detectors will also be discussed.
User:
High-Energy Seminars
Time:
1:30pm - 2:30pm
Send Reminder:
Yes - 0 days 8 hour 0 minutes before start
Description:
Speaker: Matthew Reece (Harvard)
Title: A Swampland Tour, From Global Symmetries to Axion Physics
Host: Da Liu
Zoom: https://zoom.us/j/186024391
Abstract:
The Swampland program aims to distinguish effective quantum field theories that can potentially arise within UV-complete quantum gravity theories (“the Landscape”) from those that cannot (“the Swampland”). The most well-established such criterion is that theories of quantum gravity never have exact global symmetries. I will discuss some generalizations and consequences of this idea. In particular, I will discuss ongoing work (with Heidenreich, McNamara, Montero, Rudelius, and Valenzuela) on how axion fields often play a crucial role in banishing global symmetries from a theory, with potential phenomenological implications.
User:
High-Energy Seminars
Time:
1:30pm - 2:30pm
Send Reminder:
Yes - 0 days 8 hour 0 minutes before start
Description:
Speaker: Wei Xue (Florida U.)
Title: The quest for new physics in the Sun
Host:
Zoom: https://zoom.us/j/186024391
Abstract:
The ultralight bosonic fields are attractive possibilities as dark matter candidates. In this talk, I will discuss two well-motivated ultralight fields: axions and dark photons. The XENON1T collaboration has observed excess in electronic recoil events below 5 keV over the known background, which could originate from beyond-the-Standard-Model physics. I will review some of the theoretical interpretations of the XENON1T excess, and focus on the solar axion explanation. For the dark photon dark matter, it can efficiently convert into photons in the outermost region of the solar atmosphere, the solar corona. The possibility to utilize radio telescopes with solar observations to search for dark photon dark matter will be presented.
