Cosmological Probes of New Physics @ Notre Dame

24 Apr 2025, 09:00 → 26 Apr 2025, 13:00 America/New_York

University of Notre Dame

Zackaria Chacko (University of Maryland, College Park), Antonio Delgado (University of Notre Dame), Peter Garnavich (University of Notre Dame), Christopher Kolda (University of Notre Dame), Seth Koren (University of Notre Dame), Gustavo Marques-Tavares (University of Utah), Adam Orion Martin, Grant Mathews Mathews (University of Notre Dame), Arielle Phillips (University of Notre Dame), Yuhsin Tsai (University of Notre Dame)

The Department of Physics and Astronomy at the University of Notre Dame is excited to host a three-day workshop from April 24–26, 2025 (Thursday–Saturday), bringing together leading cosmologists and particle physicists to explore compelling particle physics scenarios that can be tested with current and future cosmological data. The workshop builds on the success of the Cosmo Probe of New Physics workshop held in 2022.

Workshop venue:

4/24 (Thu): Reading Room, Jordan Hall of Science [link]

4/25-26 (Fri, Sat): Room 210, Duncan Student Center [link]

The event includes a formal workshop and two public science events:

 

• An invitation-only workshop exploring the intersection of particle physics and cosmology, focusing on five main topics:

 

           Cosmic tensions

           Dark sectors and neutrinos

           Particle physics targets for future experiments

           Effective Field Theory of Large Scale Structure

           Non-Gaussian signals and cosmological features

 

• The Universe and Us: A science outreach event with Prof. Dan Hooper, Director of the Wisconsin IceCube Particle Astrophysics Center at the University of Wisconsin-Madison. Taking place on 4/24 (Thursday) after dinner at Merriman's Playhouse, a jazz venue in Downtown South Bend.

 

• Cosmology and Unification: A public lecture by Prof. Raman Sundrum, Director of the Maryland Center for Fundamental Physics at the University of Maryland. Taking place on 4/25 (Friday) evening at the St. Joseph Country Public Library in Downtown South Bend, with a reception beforehand.

 

                        

 

 

Thursday 24 April

09:00 → 09:15 Breakfast + Introduction

09:15 → 10:45 Morning Session

Convener: Gustavo Marques-Tavares (University of Utah)

09:15 Detecting dark influences on the expansion rate

Speaker: Adrienne Erickcek (UNC Chapel Hill)

09:45 Large-scale homogeneity in the era of precision cosmology

Speaker: Francis-Yan Cyr-Racine (University of New Mexico)

10:15 Learning about substructure and dark matter microphysics from ultra-faint dwarf dynamics

Speaker: Harikrishnan Ramani (University of Delaware)

10:45 → 11:15 Coffee Break

11:15 → 12:30 Discussion: Dark sectors and neutrinos

Convener: Yuhsin Tsai (University of Notre Dame)

11:15 Dark sectors and neutrinos (Hongwan Liu, Joel Meyers)

Speakers: Hongwan Liu (Boston University), Joel Meyers (Southern Methodist University)

12:30 → 14:00 Lunch

14:00 → 15:00 Afternoon Session

Convener: Jae Hyeok Chang (Fermilab and UIC)

14:00 Warm White Wave dark matter

Speaker: Mustafa Amin (Rice University)

14:30 Constraining primordial non-Gaussianity with large-scale structure data at slightly smaller scales

Speaker: Sam Goldstein (Columbia University)

15:00 → 15:45 Coffee Break

15:45 → 17:00 Discussion: Non-Gaussian signals and cosmological features

Convener: Raymond Co (Indiana University)

15:45 Non-Gaussian signals and cosmological features (Matteo Braglia, Soubhik Kumar)

Speakers: Matteo Braglia (New York University), Soubhik Kumar (New York University)

18:15 → 20:15 Workshop dinner

20:30 → 21:30 The Universe and Us with Dan Hooper

Friday 25 April

09:00 → 09:15 Breakfast

09:15 → 10:45 Morning Session

09:15 A Critical Review of Modern Computational Methods in Cosmology

Speaker: Moritz Muenchmeyer (University of Wisconsin-Madison)

09:45 Populating hidden sectors through gravitational particle production

Speaker: Rocky Kolb (University of Chicago)

10:15 Cosmic tensions as a launchpad for discoveries

Speaker: Tanvi Karwal (Kavli Institute for Cosmological Physics, University of Chicago)

10:45 → 11:15 Coffee Break

11:15 → 12:30 Discussion: Particle physics targets for future experiments

Convener: Gordan Krnjaic (Fermi National Accelerator Laboratory)

11:15 Particle physics targets for future experiments (Ely Kovetz, Jessie Shelton)

Speakers: Ely Kovetz (Ben-Gurion University), Dr Jessie Shelton (University of Illinois, Urbana-Champaign)

12:30 → 14:00 Lunch

14:00 → 15:00 Afternoon Session

14:00 Cosmological concordance from the early universe to the near field

Speaker: Vera Gluscevic (University of Southern California)

14:30 Probing Dark Matter Through Near-Field Cosmology: The Power of Cosmic Surveys

Speaker: Ting Li (University of Toronto)

15:00 → 15:45 Coffee Break

15:45 → 17:00 Discussion: Effective Field Theory of Large Scale Structure

Convener: Gustavo Marques-Tavares (University of Utah)

15:45 Effective Field Theory of Large Scale Structure (Mikhail Ivanov, Oliver Philcox, Ennio Salvioni)

Speakers: Mikhail Ivanov (MIT), Oliver Philcox (Columbia, Simons Foundation, Stanford), Ennio Salvioni (University of Sussex (GB))

18:30 → 20:00 Reception

20:00 → 21:00 Cosmology and Unification Nieuwland Lecture with Raman Sundrum

Saturday 26 April

09:00 → 09:15 Breakfast

09:15 → 09:45 Morning Session

09:15 High-Precision CMB Power Spectra from ACT DR6: Implications for the Dark Sector and Cosmological Concordance

Speaker: Colin Hill (Columbia University)

09:45 → 11:00 Discussion: Cosmic tensions

Convener: Zackaria Chacko (University of Maryland, College Park)

09:45 Cosmic tensions (Kim Boddy, Manuel Buen-Abad)

Speakers: Kimberly Boddy (University of Texas at Austin), Manuel Buen-Abad (University of Maryland)

11:00 → 11:30 Coffee Break

11:30 → 12:30 Morning Session

11:30 CMB Constraints on Non-Minimally Coupled Ultralight Dark Matter

Speaker: Dr Subhajit Ghosh (The University of Texas at Austin)

12:00 Galaxy Clustering Constraints with Simulation-Based Priors

Speaker: Mikhail Ivanov (MIT)

12:30 → 12:35 Closing