New Ideas in Constraining Nuclear Forces

4 Jun 2018, 07:45 → 8 Jun 2018, 16:00 Europe/Rome

Meeting room (ECT* - Villa Tambosi - Trento )

Joel Lynn (Technical Universität Darmstadt), Jason Holt (TRIUMF - Vancouver), Andreas Ekström (Chalmers University of Technology), Ingo Tews (INT- University of Washington)

New Ideas in Constraining Nuclear Forces

Nuclear forces are the key component in understanding many important physical observables over a wide range of densities, from few-body physics, to nuclear structure, and astrophysical phenomena. A systematic theory for nuclear Hamiltonians is crucial to providing accurate predictions for these systems. In recent years, nuclear physics has benefited greatly from the development of powerful ab initio many-body methods and their combination with interactions from chiral effective field theory. With increasing computational power and continuous development of these methods, we have entered an era of precision nuclear physics. Uncertainties from the nuclear Hamiltonian now dominate over uncertainties from the many-body method.

This workshop aims to bring together specialists in constructing nuclear Hamiltonians and experts in many-body calculations, with the goal of identifying future pathways and novel constraints to improve our understanding of nuclear interactions, which is needed for future high-precision calculations of nuclei and matter from nuclear physics to astrophysics.

Organizers:         

• Andreas Ekström (Chalmers University of Technology)
• Jason Holt (TRIUMF - Vancouver)
• Joel Lynn (Technical University Darmstadt)
• Ingo Tews (INT- University of Washington)

 

                                                       

                                  

LynnProgram.pdf

Poster - New Ideas in Constraining Nuclear Forces.pdf

Monday 4 June

08:00 Registration

09:10 Welcome

09:20 Welcome Address of the ECT* Director Prof. J. Wambach

Constraining nuclear forces with few- and many-body observables:

1 Nuclear forces and structure in nuclear lattice simulations

chair:

Speaker: D. Lee (Michigan State University)

DLee_Trento2018.pdf

10:20 Coffee break

2 Determination of the pion-nucleon low-energy constants

Speaker: J. Ruiz de Elvira (University of Bern)

Ruiz-de-Elvira.pdf

3 An efficient Monte Carlo framework for nuclear-matter calculations

Speaker: C. Drischler (University of California, Berkeley)

Drischler_Trento_2018_slides.pdf

12:10 Lunch

4 Constraints on the nuclear equation of state from neutron star observations

Speaker: J. W. Holt (Texas A&M)

Holt_1806_Trento.pdf

15:30 Coffee break

16:00 Afternoon discussion session on novel constraints in nuclear physics including many-body observables and saturation properties of nuclear matter

Tuesday 5 June

Current limitations of nuclear Hamiltonians

5 Status and challenges of chiral effective field theory calculations of nuclear and dense matter

Speaker: A. Schwenk (TU Darmstadt)

Schwenk_Trento2_2018.pdf

6 Observables in medium-mass nuclei

Speaker: S. R. Stroberg (Reed College)

ragnar_ect.pdf

10:20 Coffee break

7 Uncertainty quantification for nuclear many-body calculations

Speaker: C. Wellenhofer (TU Darmstadt)

Wellenhofer_presentation.pdf

8 How do we handle computationally expensive observables when fitting an interaction?

Speaker: A. Ekström (Chalmers University of Technology)

AndreasEkstrom_online.pdf

12:10 Lunch

9 From microscopic to effective interactions via Quantum Monte Carlo

Speaker: A. Gezerlis (University of Guelph)

zGezerlis_ECT.pdf

10 Quantum Monte Carlo calculations of properties of nuclei with chiral interactions

Speaker: S. Gandolfi (LANL)

Gandolfi_ect2018.pdf

15:30 Coffee break

16:00 Afternoon discussion session on status and shortcomings of current state-of-the-art nuclear Hamiltonians

Wednesday 6 June

Improving two- and many-body nuclear forces with novel fitting strategies and higher orders in chiral EFT

11 From light nuclei to neutron stars with chiral dynamics

Speaker: M. Piarulli (Argonne National Lab)

ECTPiarulli.pdf

12 Chiral nuclear forces at the precision frontier

Speaker: E. Epelbaum (Ruhr-University Bochum)

Trento_EE.pdf

10:20 Coffee break

13 Symmetry preserving regularization of nuclear forces and currents

Speaker: H. Krebs (Ruhr-University Bochum)

talk_krebs.pdf

14 Implementation and applications of three-nucleon interactions and nuclear currents

Speaker: K. Hebeler (TU Darmstadt)

ECT_hebeler.pdf

12:10 Lunch

15 Different strategies for EFT parameter estimation in the few-nucleon sector

Speaker: C. Forssén (Chalmers University of Technology)

forssen-trento-180606.pdf

16 Bayesian parameter estimation for chiral interactions: NN sector

Speaker: S. Wesolowski (Salisbury University)

wesolowski_Trento_2018.pdf

15:30 Coffee break

16:00 Afternoon discussion session on higher orders in chiral EFT, delta degrees of freedom, and new strategies in fitting nuclear interactions

Thursday 7 June

Power counting: Beyond Weinberg (?)

17 What's the issue, and why do we care?

Speaker: H. Griesshammer (George Washington University)

griesshammer.pdf

18 Counting powers of what? Where?

Speaker: U. van Kolck (Institut de Physique Nucleaire d'Orsay)

vanKolck-PC what where-ECT.pdf

10:20 Coffee break

19 Perturbative NN scattering

Speaker: B. Long (Sichuan University)

Long_PertNN_Trento.pdf

20 Nuclear physics around the unitarity limit

Speaker: S. König (TU Darmstadt)

Koenig_Trento_Jun18.pdf

12:10 Lunch

21 Examining chiral EFT potentials with Lepage plots

Speaker: C.-J. Yang (George Washington University)

Yang_ect2018new.pdf

22 Perturbative vs non-perturbative nuclear EFT: A potential compromise?

Speaker: M. P. Valderrama (Beihang University)

Pavon-EFT-Trento-18.pdf

15:30 Coffee break

16:00 Afternoon discussion session on power counting, regularization, renormalization, and related topics

Friday 8 June

Constraining nuclear forces from lattice QCD calculations

23 Nuclear and hypernuclear forces from lattice QCD

Speaker: Z. Davoudi (University of Maryland, College Park)

Davoudi_Talk

24 Baryon interactions from lattice QCD

Speaker: K. Sasaki (YITP, Kyoto University)

Sasaki-ECTstar201806.v5.pdf

10:20 Coffee break

25 Pionless EFT for medium-mass nuclei

Speaker: A. Roggero (Los Alamos National Lab)

Roggero_ECT.pdf

26 SCGF studies on nuclei based on novel chiral and lattice QCD nuclear forces

Speaker: C. Barbieri (University of Surrey)

Barbieri_ECT_8June2018

12:10 Lunch

14:00 Workshop End