Nuclear Physics and Dense Matter Equation of State Workshop

Program

Agenda at Glance 

Monday, December 8, 2025
Start	Duration	Agenda Item	Chair	Title
1200 FRIB Laboratory
8:30	0:30	Registration
9:00	0:10	Opening of the workshop by the organizers	Jerome Margueron
9:10	0:05	Alexandra Gade (FRIB, East Lansing)		Welcome
9:15	0:15	Jan Matas (CNRS Washington DC)		Scope of the workshop: EOS above saturation density
9:30	0:40	William Newton (East Texas A&M)	Dean Lee	Combining nuclear and astrophysical observables to constrain the neutron star crust and core: systematic errors
10:20	0:30	Coffee and Tea Break
10:50	0:40	Veronica Dexheimer (KU Ohio)	Dean Lee	Constraining the dense matter EOS
11:40	0:40	Anthea Fantina * (GANIL Caen)		Dense-matter equation of state: Inference from astrophysical data
12:30		Lunch at Shaw Hall
1221A/B FRIB Laboratory
14:00	1:30	Small group discussion
15:30	0:30	Coffee and Tea Break
16:00	1:00	Small group discussion
Tuesday, December 9, 2025
Start	Duration	Agenda Item	Chair	Title
1200 FRIB Laboratory
9:00	0:40	Agnieszka Sorensen  (FRIB East Lansing)	Pawel Danielewicz	What can we learn about the EOS above saturation density from high-energy heavy-ion collisions?
9:50	0:40	Guy Chanfray (IP2I Lyon)		From QCD phenomenology to nuclear and neutron star physics: The Chiral Confining Model
10:40	0:30	Coffee and Tea Break
11:10	0:40	David Blaschke (Univ. Wroclaw)	Pawel Danielewicz	Particle Clustering, Chemical Freeze-out, and Universal Symmetry Energy Contribution
12:00		Lunch at Shaw Hall
1200 FRIB Laboratory
14:00	0:40	Bikram Pradhan (IP2I Lyon)	Pawel Danielewicz	Equation of State of Dense Matter in Relativistic Mean-Field, Chiral Confinement, and Chiral Soliton Models
14:50	0:20	Oleh Savchuk (FRIB East Lansing)		Mapping collective flow with femtoscopy
15:30	0:30	Coffee and Tea Break
16:00	0:20	Rohit Kumar *		Exploring the Nuclear Equation of State through Bayesian Analysis of FOPI Data
1221 a/b FRIB Laboratory
16:30	1:00	Small group discussion
Wednesday, December 10, 2025
Start	Duration	Agenda Item	Chair	Title
1200 FRIB Laboratory
9:00	0:40	Jorge Piekarewicz * (FSU Tallahassee)	Abdou Chbihi	Review of my present knowledge of the dense matter EOS
9:50	0:40	Arnaud Le Fèvre (GSI Darmstadt)		Nuclear equation-of-state and multi-messenger astronomy: contribution of heavy-ion collisions
10:40	0:30	Coffee and Tea Break
11:10	0:40	Jeremy Holt (Texas A&M)	Abdou Chbihi	Machine learning uncertainty quantification for chiral nuclear forces and the dense matter equation of state
12:00	0:20	Sundhava Lalit (FRIB East Lansing)		Probing 2n_0 with Dense Matter Equations of State
12:30		Lunch at Shaw Hall
1221 A/B FRIB Laboratory
14:00	0:40	Diego Gruyer (LPC Caen)	Abdou Chbihi	Constraining the nuclear symmetry energy with Fermi-energy heavy ion collisions
14:50	0:10	Group Photo
15:00	0:30	Tour of FRIB
15:30	0:30	Coffee and Tea Break
16:00	1:00	Large group discussion on Dense Matter EOS key questions.
19:00		Workshop Dinner	Pizza House	4790 Hagadorn Rd., East Lansing, MI
Thursday, December 11, 2025
Start	Duration	Agenda Item	Chair	Title
1200 FRIB Laboratory
9:00	0:40	Sébastien Guillot * (IRAP Toulouse)	Witek Nazarewicz	Constraints on dense matter from neutron star observations – Avoiding biases and controlling uncertainties
9:50	0:40	Zbigniew Chajecki (WMU Kalamazoo)		Experimental constraints of the nuclear equation of state below saturation density
10:40	0:30	Coffee and Tea Break
11:10	0:40	Bao-An Li (East Texas A&M)	Witek Nazarewicz	Some random thoughts on the EOS from heavy-ion collisions
12:00		Catered Lunch at FRIB Atrium
1200 FRIB Laboratory
14:00	0:40	Giuseppe Verde (INFN Catania)	Witek Nazarewicz	Femtsocopy probes in HIC: present and perspectives
1221A/B FRIB Laboratory
14:50	0:40	Large group discussion on nuclear physics constraints on dense matter.
15:30	0:30	Coffee and Tea Break
16:00	1:00	Small group discussion
1300 FRIB Laboratory
17:30	1:00	An Evening of Guitar: Onur Alakavuklar		Program
Friday, December 12, 2025
Start	Duration	Agenda Item	Chair	Title
1200 FRIB Laboratory
9:00	0:40	Bill Lynch (FRIB East Lansing)	Jerome Margueron	Towards the Equation of State of Dense Matter
9:50	0:40	Curtis Hunt (FRIB East Lansing)		Experimental Results of the 2024 Xe+Sn SπRIT Campaign
10:40	0:30	Coffee and Tea Break
11:10	0:40	Kyle Brown (FRIB East Lansing)	Jerome Margueron	Opportunities to study the nuclear equation of state at FRIB
1221A/B FRIB Laboratory
12:00	1:00	Large group discussion on nuclear physics constraints on dense matter. Concluding remarks
13:00		Lunch at Shaw Hall
14:00		End of the workshop
*		Attending remotely		Meeting ID: 918 2096 2230

Our five-day program will feature 15-20 talks covering the following topics:

• The Current State of Knowledge about the Dense Matter Equation of State: A comprehensive review of what we know and the fundamental questions that remain to be answered.

• Theoretical Constraints on Dense Matter Equation of State: Exploring how approaches like Energy Density Functionals (EDFs) and ab-initio calculations constrain the dense matter EoS.

• Constraints from nuclear physics: Heavy Ion Collision: Examining the insights gained from heavy ion collision experiments.

• Constraints from nuclear physics: Ground states and collective states in finite-size nuclei: A look at how experimental nuclear data on the ground states and the collective states in finite-size nuclei contribute to our understanding of the dense matter EoS.

• Constraints from Astrophysical Measurements: Discussing the constraints and predictions from astrophysical observations, including recent Gravitational Wave and NICER data.

Presentation Information

Specific time allocations will be provided closer to the event. Should you have any questions, please feel free to reach out. We look forward to your presentation!