Please note this event occurred in the past.
September 17, 2025 9:00 am - September 19, 2025 4:00 pm ET
Special Events
UMass Campus - LGRT 419B

Summary

Primordial Black Holes (PBHs) could play a relevant role in several physical phenomena: PBHs are particularly attractive as a macroscopic DM candidate, they might provide the seeds for the formation of the supermassive black holes that we observe in our universe today, and they might also be responsible for a fraction of the merger events detected by LIGO/Virgo, among other motivations. In addition, they also constitute unique probes of the inflationary phase, early universe physics associated to the smallest scales, and hidden BSM degrees of freedom which are almost inaccessible otherwise. 

The interest in PBHs has grown exponentially since the first detection of gravitational waves in 2015, where the existence of black holes was definitively established.  PBHs have since become one of the most prominent research topics in the field of high-energy physics.  The workshop aims to address questions related to PBH formation, Hawking radiation, experimental detection, and the role of PBHs in the Universe.

This three day workshop will host around 20 participants, giving most or all participants the opportunity to present their recent work as well as allowing time for informal discussion.  There will be no registration fee and we expect to be able to provide coffee breaks, lunches and a workshop dinner on Thursday night.  If you are interested in attending, please contact the organisers.

Workshop Photo

Workshop photo

Confirmed Speakers

David Kaiser (MIT)
Stefano Profumo (UCSC)
Jane MacGibbon (University of North Florida) 
Yang Bai (University of Wisconsin–Madison)

Schedule

Wednesday Sep 17 - Introductory and Other Topics

09:00Morning Coffee LGRT 419A 
09:20Welcome LGRT 419B 
09:30Jane MacGibbonThe Origin and Evolution of Primordial Black HolesLGRT 419BAT
10:10Mehr Un Nisa & Kristi EngelDetecting Primordial Blackholes: Signatures, Challenges and ProspectsLGRT 419BAT
10:50Coffee Break LGRT 419A 
11:20Ben HeidenreichBlack Holes and Quantum GravityLGRT 419BJIJ
12:00Jennie TraschenEvolving Black Holes in InflationLGRT 419BJIJ
12:40Lunch   
14:50Akshay GhalsasiGrowing large black holes in the early universe with dark atoms LGRT 419BMB
15:30Stefano Profumo

Black Holes as Dark Matter

Hasbrouck 124MB
17:00End of talks   
18:00Workshop Dinner Garcia's 

 

Thursday Sep 18 - Exploding PBHs and PBH Detection

09:00Morning Coffee LGRT 419A 
09:30Quim Iguaz JuanQuasi-Extremal Black HolesLGRT 419BAT
10:10Jae Hyeok ChangPrimordial Black Holes as Dark Sector FactoriesLGRT 419BAT
10:50Coffee Break LGRT 419A 
11:20Alexandra Klipfel

Primordial Black Hole Explosions and Transits: detecting Hawking radiation and probing the asteroid mass window

LGRT 419BMUN
12:00Lucas Martins Barreto AlvesArtificial Precision Timing Array: a new gravitational-wave detector concept bridging a gap in the observable spectrumLGRT 419BMUN
12:40Lunch   
14:40Aidan Symons

Observational Aspects of Exploding Black Holes

LGRT 419BKE
15:20David KaiserMultimessenger Signatures of Nearby Transits from Primordial Black HolesLGRT 419BKE
16:00Coffee Break LGRT 419A 
16:20Michael BakerFiltered PBH ProductionLGRT 419BKE
17:00Block Party Amherst 

 

Friday Sep 19 - PBH Formation

09:00Morning Coffee LGRT 419A 
09:30Wenzer QinNot-quite-primordial black holesLGRT 419BAT
10:10Yang BaiMagnetic Black HolesLGRT 419BAT
10:50Coffee Break LGRT 419A 
11:20Mudit RaiAspects of PBH formationLGRT 419BJIJ
12:00Zachary PickerForming (and detecting?) PBHs and macros with dark Yukawa forcesLGRT 419BJIJ
12:40Lunch   
14:15Aurora IrelandA Tail of Two Modes: PBH Formation Beyond the Stochastic ApproximationLGRT 1033MB
15:15Coffee Break LGRT 419A 
16:00End of Workshop   

Travel Information

The workshop will (mostly) take place 4th floor of LGRT (the entrance is here: https://maps.app.goo.gl/twFsWsZ5MoKGEAHm9).  When you come up the elevator, the ACFI Theory wing is straight in front of you.

To facilitate local transport, if you can offer or need a ride from a nearby city or airport please fill in your information here: https://docs.google.com/document/d/1Qe_IQQxFru_eag-ojVyZEIGrtzv7iQGHSNnmCiPvsHs/edit?usp=sharing

For those driving to Amherst, you can park on campus either at metered spaces ($1.60/hour, metered from 7 a.m. to 7 p.m) or in the parking garage ($1.85/hr, metered 24 hours per day).  For more information on parking, please see: https://www.umass.edu/transportation/parking

The nearest airport to UMass Amherst is Bradley International (BDL) about 1 hour's drive away, while Boston Logan International (BOS) is about 2 hour's drive away and has more flight options.  There are public transport options from/to these airports but they are generally not very good, so please fill in your information (see above) if you don't find a good option.

Accommodation Suggestions

UMass Hotel (for those who want to be on site - has garage parking - may book out early)

The Black Walnut Inn (more airbnb like for those who prefer that boarding style)

Inn on Boltwood (can be expensive)

Comfort Inn (nice and likely going to be the cheapest option)

Courtyard by Marriott Hadley Amherst (median cost, but can also be expensive)

Homewood Suites by Hilton Hadley Amherst (median cost, but can be expensive)

Organising Committee

Michael Baker (UMass - [email protected])

Andrea Thamm (UMass - [email protected] - Diversity Coordinator)

Joaquim Iguaz Juan (UMass - [email protected])

Mehr U Nisa (MSU - [email protected])

Kristi Engel (UMD - [email protected])

Code of Conduct

All participants are required to agree with the following code of conduct. Organisers will enforce this code throughout the event. We expect cooperation from all participants to help ensure a safe environment for everybody.

Our workshop is dedicated to providing a harassment-free workshop experience for everyone, regardless of gender, age, sexual orientation, disability, physical appearance, body size, race, or religion (or lack thereof). We do not tolerate harassment of workshop participants in any form.  Workshop participants violating these rules may be sanctioned or expelled from the workshop at the discretion of the workshop organisers.