Introduction to Primordial Black Hole Dark Matter (Lecture 2) by Ely D. Kovetz скачать в хорошем качестве

Introduction to Primordial Black Hole Dark Matter (Lecture 2) by Ely D. Kovetz

PROGRAM LESS TRAVELLED PATH OF DARK MATTER: AXIONS AND PRIMORDIAL BLACK HOLES (ONLINE) ORGANIZERS: Subinoy Das (IIA, Bangalore), Koushik Dutta (IISER, Kolkata / SINP, Kolkata), Raghavan Rangarajan (Ahmedabad University) and Vikram Rentala (IIT Bombay) DATE: 09 November 2020 to 13 November 2020 VENUE: Online The existence of dark matter (DM) has been inferred from its gravitational interactions, yet the identity of the dark matter particles remains completely unknown. The dominant candidate for DM over the last 30 years has been Weakly Interacting Massive Particles (WIMPs). However, despite extensive underground (direct), telescope (indirect), and collider searches, dedicated experiments have not found any evidence of WIMPs. Meanwhile, several astrophysical small-scale structure and cosmological hints might be an indication that DM has non-gravitational interactions that cannot easily be explained with vanilla WIMPs. This online workshop on the Less Travelled Path of Dark Matter (LTPDM) will bring together particle physicists and cosmologists from all over the world to address current trends in DM searches, focused on axions and primordial black holes, and map the way forward. The program will also include a school, with lectures addressed to students and postdocs, familiarizing them with new and advanced concepts. We plan to have a longer physical workshop on dark matter, with a larger perspective, in the near future once the current global pandemic crisis has subsided. The organisers will ask for the reference letters only when it is felt required. CONTACT US: ltpdm2020@icts.res.in PROGRAM LINK: https://www.icts.res.in/program/ltpdm... Table of Contents (powered by https://videoken.com) 0:00:00 12:00 pm, 09 NOVEMBER 2020 0:00:10 Outline 0:01:42 Indirect detection: GWs from PBH Binary Mergers 0:06:28 Q: Does PBH Dark Matter have testable GW predictions? 0:10:58 Indirect Detection: The GW Mass Spectrum 0:16:07 Indirect Detection: Stellar Mass Spectrum 0:17:39 Indirect Detection: Constraints on PBH fraction 0:18:49 Indirect Detection: Orbital Eccentricity 0:23:54 Indirect Detection: Individual and Effective Spin 0:26:39 Indirect Detection: Stochastic GW Background 0:29:31 Indirect Detection: Clustering of GW Events 0:32:28 Indirect Detection: 03a Data Hot Off the Press! 0:38:34 Indirect Detection: 03a Fit with Astro Channels 0:39:04 Indirect Detection: 03a Fit with Accrediting PBHs 0:40:47 PBH Dark Matter: Constraining the Mass Fraction 0:43:11 Microlensing: Illustration 0:45:33 PBH Dark Matter: Existing Constraints 0:45:54 PBH Dark Matter: The "LIGO Window" 0:47:29 Direct Detection: New Transient Probes 0:47:45 Fast Radio Bursts! 0:49:16 Constraining MACHOs: Fast Radio Burst Lensing 0:53:07 Strong Lensing of FRBs: Unique Signature 0:53:51 PBH DM LIGO Window: Constraints Tightening! 0:55:00 Observational Outlook: Timeline 0:55:36 PBH DM: Other Windows Open? 0:59:27 From PBH to Primordial Power Spectrum Limits 1:01:36 PBHs as SMBH Seeds: Future Tight(!) Constraints 1:01:59 Takeaway: Lots of Ways to Probe PBH Scenario! 1:03:10 Thank you! 1:09:07 PBH DM: Other Windows Open?