This seminar presents a comprehensive analysis of thermal relic freezeout mechanisms, deriving simple-to-use analytical relationships between dark matter mass and coupling strengths that explain the observed cosmic abundance. This unified framework reveals a generalized perturbative unitarity bound on dark matter mass applicable across the full spectrum of thermal freezeout processes.
Notably, I will demonstrate how thermal dark matter masses can exceed the conventional 100 TeV unitarity limit—potentially reaching the Planck scale—through mechanisms involving nearly degenerate states and metastable dark matter configurations. Specifically, I will introduce new concepts like zombie and drunk dark matter to enable the realization of superheavy thermal dark matter. Finally, I will show that weak-scale thermal dark matter can naturally arise even in scenarios with extremely small coupling strengths.
Notably, I will demonstrate how thermal dark matter masses can exceed the conventional 100 TeV unitarity limit—potentially reaching the Planck scale—through mechanisms involving nearly degenerate states and metastable dark matter configurations. Specifically, I will introduce new concepts like zombie and drunk dark matter to enable the realization of superheavy thermal dark matter. Finally, I will show that weak-scale thermal dark matter can naturally arise even in scenarios with extremely small coupling strengths.
Building: | Randall Laboratory |
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Event Type: | Lecture / Discussion |
Tags: | High Energy Theory Seminar, Physics |
Source: | Happening @ Michigan from Leinweber Institute for Theoretical Physics, Department of Physics, HET Seminars, Leinweber Institute for Theoretical Physics Seminars, Leinweber Institute for Theoretical Physics High Energy Theory Seminars |
Events
Featured
Oct
18
Saturday Morning Physics | When “Physic(k)s” Lost Its ‘k’ and other Language Quarks
Anne Curzan, Geneva Smitherman Collegiate Professor of English, Linguistics, and Education (U-M)
10:30 AM
170 & 182
Weiser Hall
Upcoming
Oct
20
Applied Physics Seminar | Frontiers in quantum science with neutral ytterbium atoms trapped in optical tweezer arrays
Alexander Burgers, Ph.D., Assistant Professor, EECS - Electrical and Computer Engineering, Applied Physics, College of Engineering, University of Michigan
12:00 PM
340
West Hall
Oct
20
HEP-Astro Seminar | Spin detection and nuclear magnetic resonance at the quantum sensitivity limit
Alexander Sushkov (Boston University)
3:00 PM
340
West Hall
Oct
22
HET Brown Bag Seminar | Love number matching: uncovering the simplest EFT
Giulia Isabella (UCLA)
12:00 PM
3481
Randall Laboratory