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HEP-Astro Seminar | Neutron Stars as Axion Laboratories

Ben Safdi (Lawrence Berkeley National Laboratory)
Monday, October 26, 2020
4:00-5:00 PM
Off Campus Location
Please contact Beth Demkowski, demkowsk@umich.edu for Zoom link.

The QCD axion is a well-motivated dark matter candidate that may also solve the strong CP problem related to the absence of the neutron electric dipole moment. Multiple experimental efforts are currently racing to try to discover this particle in the laboratory. However, in this talk I will show that astrophysical observations are also a promising path towards detecting the axion and related axion-like-particles, which arise in some String Theory compactifications. I will focus in particular on neutron stars as laboratories for searching for axions, leveraging the strong magnetic fields in these systems. I will discuss two recent neutron star axion searches in my group, one in the radio band and one in the X-ray band, that probe new regions of axion parameter space and perhaps even uncover hints of new physics.
Building: Off Campus Location
Location: Virtual
Event Type: Workshop / Seminar
Tags: Physics, Science
Source: Happening @ Michigan from Department of Physics, HEP - Astro Seminars