Dark Sectors of Astroparticle Physics (AstroDark-2021): Axions, Neutrinos, Black Holes and Gravitational Waves

Session

Review

Dec 7, 2021, 7:40 AM

Online

3. New Developments in Indirect Searches for Dark Matter

Tracy Slatyer (MIT)

12/7/21, 7:40 AM

The nature and origin of dark matter is one of the key unresolved questions of fundamental physics. Astrophysical and cosmological data provide powerful probes of dark matter properties, although to date no signal has been confirmed. I will give a status update on current constraints, future prospects, and open questions, including excesses/anomalies that are not yet fully understood.

4. Hidden Sector Dark Matter and Ideas for Its Detection

Kathryn Zurek (Caltech)

12/7/21, 8:50 AM

8. Axions From the Laboratory to the Cosmos

Benjamin Safdi (UC Berkeley)

12/8/21, 7:00 AM

I will review the current status of the search for the QCD axion.

9. The Current Theoretical Status of Axions

Anson Hook (Maryland)

12/8/21, 7:40 AM

I will review the current status of theoretical work on the QCD axion.

12. Neutrino Astronomy

Irene Tamborra (NBI, Copenhagen)

12/9/21, 7:00 AM

Neutrinos are fascinating elementary particles heralding the dawn of the multi-messenger astronomy era. Neutrinos affect the stellar dynamics, drive the formation of new elements, and carry signatures of the yet mysterious physics ruling cosmic accelerators. Recent developments on neutrinos from cosmic sources will be reviewed together with detection prospects.

11. Dark Matter: What’s Beyond the WIMP Lamppost?

John Beacom (Ohio State)

12/9/21, 7:40 AM

Despite intensive searches, dark matter has not yet been discovered as a particle. Why not? Arguably, most searches are like looking for lost keys only under the lamppost, because that’s where we can see. I will assess how thoroughly we have really searched under the WIMP lamppost, point out opportunities for progress, and discuss the ultimate limitations of such searches. Then I will...

13. Search for Primordial Black Holes with Microlensing

Masahiro Takada (Kavli IPMU, Tokyo)

12/10/21, 7:00 AM

In this talk I present the recent constraints on primordial black holes (PBHs) with microlensing methods, based on the Subaru Hyper Suprime-Cam (HSC) and the Optical Gravitational Lensing Experiment (OGLE) data. With Subaru HSC data, we obtained the tightest bound on the abundance of PBHs in the mass range of masses from asteroid to moon masses, but found a possible one candidate. We also...

14. PBH-GW Cosmology

Misao Sasaki (Kavli IPMU, Tokyo)

12/10/21, 7:40 AM