PIKIMO 12

Session

Morning Session

30 Apr 2022, 09:30

8. Searching for Lorentz violation and spin-gravity couplings in experiments

Zonghao Li

30/04/2022, 09:30

Lorentz violation has been a popular topic in recent years. We studied the linearized limits of the generic Lorentz-violating terms in curved spacetime and applied them to gravitational experiments. Three types of experiments, free-dropping, gravitational interferometer, and gravitational bound-state experiments, are studied. First constraints on certain new coefficients for Lorentz violation...

16. Chirally-Enhanced Muon g-2 and Its Implications to Higgs-Related Observables

Keith Hermanek

30/04/2022, 09:45

I introduce extensions of the Standard Model and a two-Higgs-doublet model with vectorlike leptons which generate chirally-enhanced contributions to the muon's anomalous magnetic moment, $(g-2)_{\mu}$. I show an additional $\tan^2\beta$ enhancement in the Higgs sector can generate up to two-orders of magnitude larger contributions to the magnetic moment while satisfying relavant constraints....

7. Searching for Ultralight Dark Matter with Light

Christina Gao

30/04/2022, 10:00

Ultralight dark matter (UDM) is a well motivated dark matter candidate. However, direct detection of UDM poses an experimental challenge due to the low energy scales and weak couplings involved. We propose to use optical microring resonators to search for UDM particles. The microring resonators not only have a high quality factor which produce large enhancements in signal power, but also can...

22. Cosmological Dark Photon Oscillations in Non-Minimal Dark Sectors

Mr Xucheng Gan (New York University)

30/04/2022, 10:15

As many of us know, the cosmic microwave background has a black-body spectrum. This is confirmed by COBE-FIRAS data three decades ago with exact measurement and tiny error bars.

However, the existence of new physics, such as the photon-dark photon oscillation with non-zero kinetic mixing, will distort the black body spectrum. Based on this character, and the fact that the deviation of CMB...

17. Searching for Dark Matter with SRF Cavities

Michael Wentzel

30/04/2022, 10:30

Advancements in superconducting radio-frequency (SRF) cavity design have the potential to enable searches for beyond the Standard Model physics with weak coupling to photons. To motivate the use of SRF cavities as particle detectors, we will discuss the generic properties of these cavities in the context of detecting small photon couplings. Next, we will describe the application of SRF cavity...