PAINT2026 - Workshop on Progress in Ab Initio Nuclear Theory
TRIUMF Auditorium
The workshop on Progress in Ab Initio Nuclear Theory will be held at TRIUMF from February 24 to February 27, 2026.
This is the fourteenth in a series of workshops focused on new developments in ab initio nuclear theory that started in 2011. The workshop will last for four days to allow more time for discussions and collaboration meetings. We encourage student participation with the possibility to present a poster accompanied by a jamboree. There will be a TRIUMF colloquium as a part of the program. The workshop is sponsored by the TRIUMF Physical Sciences Division. We will provide some level of local support.
The topics to be discussed include:
- Progress in first-principles nuclear structure and reaction calculations
- New results of calculations of electro-weak transitions
- Latest developments in constructions of accurate nucleon-nucleon and three-nucleon interactions


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Morning TalksConvener: Petr Navratil (TRIUMF)
- 1
- 2
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3
Light hypernuclei based on chiral baryon-baryon and three-baryon forcesSpeaker: Andreas Nogga
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Coffee Break
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Morning TalksConvener: Petr Navratil (TRIUMF)
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4
Emulating light hypernuclei for calibration of hypernuclear interactionsSpeaker: Daniel Gazda
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5
Exploring quark mass dependent three-nucleon forces in medium-mass nucleiSpeaker: Urban Vernik
- 6
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4
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Lunch
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Afternoon TalksConvener: Robert Roth
- 7
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8
Diagrammatic Monte Carlo and Emulating Many-Body Green’s FunctionsSpeaker: Stefano Brolli
- 9
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Coffee Break
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Afternoon TalksConvener: Robert Roth
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10
7Li in the no-core shell model with continuum framework with coupling of mass partitions 4He + 3H, 6Li + n, and 6He + pSpeaker: Jakub Herko
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11
Connecting Nuclear Forces to the Properties of Complex NucleiSpeaker: Antoine Belley
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10
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Morning TalksConvener: Jason Holt
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12
ARIEL at the Finish Line: Delivering TRIUMF’s Next-Generation RIB CapabilitiesSpeaker: Alexander Gottberg (TRIUMF)
- 13
- 14
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12
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Coffee Break
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Morning TalksConvener: Jason Holt
- 15
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16
Neutron-rich matter from chiral EFT, experiments, and observationsSpeaker: Achim Schwenk
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17
Two-body currents at finite momentum transfer and applications to dark matter scattering off nucleiSpeaker: Catharina Brase
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Lunch
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Afternoon TalksConvener: Gaute Hagen
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18
Ab initio nuclear corrections to light muonic atomsSpeaker: Mehdi Drissi
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18
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Poster JamboreeConvener: Gaute Hagen
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19
Two-Photon exchange correction for Boron 10Speaker: Diego Araujo Najera
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20
Lanczos Method for Strength Functions in Even-A HeliumSpeaker: Scott Baker
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21
In-Medium Generator Coordinate Method with Explicit Quasiparticle ExcitationsSpeaker: Shane Blade
- 22
- 23
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24
Ab Initio Nuclear Theory for New Physics at the Electroweak ScaleSpeaker: Leah Massmann
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19
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Coffee Break
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Poster JamboreeConvener: Gaute Hagen
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25
Uncertainty quantification and emulators with low-resolution nuclear forcesSpeaker: Tom Plies
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25
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Afternoon TalksConvener: Gaute Hagen
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26
Constraining neutrino properties by double-beta decaySpeaker: Lotta Jokiniemi
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27
Emulators for uncertainty propagation: from nuclear forces to many-body physicsSpeaker: Ryan Curry
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26
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Morning TalksConvener: Achim Schwenk
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28
Developments of a hybrid Gorkov-Dyson SCGF formalism and Monte Carlo based methods in nucleiSpeaker: Carlo Barbieri
- 29
- 30
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28
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Coffee Break
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Morning TalksConvener: Achim Schwenk
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31
Ab initio structure input for scattering observablesSpeaker: Grigor Sargsyan
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32
Ab initio optical potentials derived from SA-NCSM densities for elastic scattering from Magnesium isotopesSpeaker: Charlotte Elster
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33
Ab initio Glauber-theory calculations of high-energy nuclear scatteringSpeaker: Wataru Horiuchi
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31
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Lunch
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ColloquiumConvener: Petr Navratil
- 34
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Break
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Poster JamboreeConvener: Calvin Johnson
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35
Probing Beyond the Standard Model with Beta Decay and Electron CaptureSpeaker: Victor DUMENIL
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36
Equation of Motion (EOM) Extensions of the In-Medium Similarity Renormalization Group (IMSRG)Speaker: Michael Gajdosik
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37
Improved ANNs for NCSM Charge Radius CalculationsSpeaker: Tobias Gesser
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38
Ab initio calculations of proton and neutron scattering on 12CSpeaker: Marshall Kodar Hurlbut
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39
Collective Excitations in Open-Shell Nuclei: Strength Functions in the In-Medium CISpeaker: Michelle Müller
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40
Application of ab initio in nuclear theory to electroweak processesSpeaker: Hoang Dang Khoa Nguyen
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41
Light Sterile Neutrino Contributions to Neutrinoless Double-beta DecaySpeaker: Taiki Shickele
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42
Neutrinoless Double-Beta Decay Nuclear Matrix Elements from an Approximation to IMSRG(3)Speaker: Alex Todd
- 43
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35
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Poster Session
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Workshop Dinner at Sports Illustrated Clubhouse
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Morning TalksConvener: Carlo Barbieri
- 44
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45
Uncertainty quantification for many-body perturbation theorySpeaker: Isak Svensson
- 46
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Coffee Break
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Morning TalksConvener: Carlo Barbieri
- 47
- 48
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Lunch
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Tour of TRIUMF experimental facilities (optional, first come first serve) - contact Georgios
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