Introduction to Primordial Black Hole Dark Matter (Lecture 1) by  Ely D. Kovetz скачать в хорошем качестве

Introduction to Primordial Black Hole Dark Matter (Lecture 1) 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 Introduction to Primordial Black Hole Dark Matter (Lecture 1) 0:01:33 Very Exciting Times for Black Holes! 0:06:28 Very Exciting Times for Primordial Black Holes! 0:08:12 Ingredients of the Standard Model of Cosmology 0:11:33 History of the ACDM Universe 0:13:09 Precision Cosmology 0:15:46 Motivation: The Ongoing Search for Dark Matter 0:19:01 Motivation: Detection of Merging Black Holes 0:21:42 What's the Status with Current Observations? 0:24:46 Searching for PBH Dark Matter 0:29:56 Outline 0:31:01 PBH Formation: Rough Numbers 0:32:54 PBH Formation: Loopy ideas aside... 0:34:06 PBH Formation: Collapse of Density Perturbations 0:37:02 PBH Formation: Abundance 0:39:30 PBH Formation: Mass to Scale Relation 0:41:29 PBH Formation: Inflation Models 0:45:58 PBH Formation: The Mass Function 0:48:59 Motivation: 1st Detection of Gravitational Waves 0:56:10 Indirect detection: GWs from PBH Binary Mergers