Ab initio Nuclear Pairing Properties
13-21 May 2025
PROGRAM 
ProgESNTpairingMay2025.pdf
Ab initio many-body calculations: where has the nuclear pairing gone?
Organizers: G. Palkanoglou (TRIUMF), M. Drissi (TRIUMF), M. Assié (IJCLab),
Th. Duguet (CEA DRF DPhN contact), G. Hagen (Oak Ridge Nat. Lab)
contact: [at] cea.fr
The main goals of the workshop are to:
1. Review the status of the theoretical description of spin-singlet and spin-triplet pairing phases in nuclear systems and of their standard experimental markers.
2. Identify signatures of neutron-proton pairing that could be measured experimentally in the future.
3. Address the theoretical challenges related to an efficient and accurate ab initio description of the phenomenology related to pairing correlations in both finite and infinite nuclear systems.
Talks
1. Introductory lectures
• G. Palkanoglou (TRIUMF) Ab initio calculations of spin-singlet and spin-triplet pairing gaps in infinite nuclear matter
TalkGPalkanoglou_ESNT13May2025lr.pdf
• T. Duguet (CEA-Saclay) Ab initio description of neutron-neutron and proton-proton pairing in finite nuclei
• S. Frauendorf (ND) Theoretical description of neutron-proton pairing in finite nuclei
TalkSFrauendorf_ESNT13May2025.pdf
• M. Urban (IJCLab) Nuclear superfluidity: from cold atoms to neutron stars
2. Experimental talks
• H. Jacob (IJCLab) Neutron-proton pairing through transfer reactions with stable and radioactive beams
• B. Cederwall (KTH) Searching for np pairing by studying rotational bands, case of 88Ru
TalkBCederwall_ESNT15May2025.pdf
• A. Kwiatkowski (TRIUMF) Pairing studies via precision mass measurements
TalkAKwiatkowski_ESNT14May2025.pdf
• T. Uesaka (RIKEN) Search for deuteron clusters at ONOKORO and relation to the neutron-proton pairing search
• D. Thisse (CEA-Saclay) Investigation of the Giant Monopole Resonances (GMR) along the Ni isotopic chain
3. Theoretical talks
• T. Miyagi (University of Tsukuba) Valence-space in-medium similarity renormalization group description of calcium isotopes
• C. W. Johnson (San Diego State University) The predominance of J=0 even-even ground-state: is it a fingerprint of pairing correlations?
TalkCJohnson_ESNT16May2025.pdf
• P. Demol (KU Leuven) Role of pairing in semi-magic nuclear ground states based on Bogoliubov coupled cluster calculations
• H. Hergert (Michigan State University) Odd-even mass staggering in multi-reference in-medium similarity renormalization group calculations
TalkHHergert_ESNT14May2025.pdf
• A. Ekström (Chalmers university of Technology) Correlation between chiral EFT interaction contributions and pairing properties in nuclei
TalkAEkström_ESNT14May2025lr.pdf
• E. Vigezzi (INFN) To which extent pairing originates from the exchange of collective fluctuations?
TalkEVigezzi_ESNT16May2025.pdf
• F. Barranco (Univ. of Sevilla) Fragmentation of the giant pairing vibration (GPV) induced by many-body processes
TalkFBarranco_ESNT19May2025.pdf
• G. Hagen (ORNL) Momentum of inertia of ground-state rotational bands in mid-mass nuclei: can one account for its increase with spin without explicitly breaking U(1) symmetry?
• E. Khan (IJCLab) Fingerprint of superfluidity in EDF calculations on giant monopole resonances of mid-mass open-shell nuclei
• A. Porro (TU Darmstadt) Fingerprint of superfluidity in ab initio calculations on giant monopole resonance of mid-mass open-shell nuclei
• V. Somà (CEA-Saclay) Odd-even staggering of masses and charge radii in semi-magic nuclei from Gorkov Self-consistent Green’s function calculations
• A. Rios (ICCUB) Impact of correlations on the phase diagram of nuclear matter
• Y. Fujimoto (UCB) Kohn-Luttinger effects for superfluid nuclear matter
• B. Bally (CEA) Role of neutron-proton pairing in the exact description of the deuteron at mean-field cost
• A. Gezerlis (University of Guelph) Coexistence of spin-singlet and spin-triplet pairing phases in nuclei
TalkAGezerlis_ESNT20May2025.pdf
• D. Lee (Michigan State University) Inter-species pairing and clustering in fermionic matter
• P. Van Isacker (GANIL) Alternative signatures of neutron-proton pairing
Program
Seminar room b. 703, 135 (except on 21st May, b. 709 room 3, "Cassini")
|
b.703 135 |
Tuesday 13 May Lectures |
Wednesday 14 Masses, Radii & Nuclear Interactions |
Thursday 15 Rotational Properties |
Friday 16 Alternative Effects & Signatures |
|
| 9h15 | Welcome | 9h30 | A. Kwiatkowski | G. Hagen | E. Vigezzi |
|
9h30 |
G. Palkanoglou | 10h20 | H. Hergert | B. Cederwall* | C. W. Johnson |
| 10h30 | Break | 11h10 | Break | Break | Break |
| 11h | T. Duguet | 11h30 | T. Miyagi | H. Jacob | P. Van Isacker |
| 12h |
Lunch |
12h20 |
Lunch |
Lunch | Lunch |
| 13h30 | S. Frauendorf* | 14h | A. Ekström | T. Uesaka | Discussions 3 |
| 14h30 | M. Urban | 14h50 | Break | Break | Break |
| 15h30 | Discussions | 15h | Discussions 1 | Discussions 2 | End |
| 17h |
End |
End |
End |
|
|
Monday 19 May b.703, 135 GMR & GPV |
Tuesday 20 b.703, 135 Masses, Radii & Nucl. Int. |
Wednesday 21** b.709, 3 Cassini Infinite Matter |
|
| 9h30 | E. Khan | V. Somà | A. Rios |
|
10h20 |
D. Thisse | P. Demol | D. Lee |
| 11h10 | Break | Break | Break |
| 11h30 | A. Porro | A. Gezerlis | Y. Fujimoto |
| 12h30 |
Lunch |
Lunch |
Lunch |
| 14h | F. Barranco* | B. Bally | End |
| 14h50 | Break | Break | |
| 15h | Discussions 4 |
Discussions 5 |
|
| 17h |
End |
End |
|
* The talk will be given remotely.
** On Wednesday May 21st the workshop will take place in room 3 ("Cassini") of building 709.
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