Name: Probing baryon weak decays - from experiment to lattice QCD
Start: 2023-03-06T09:00:00+01:00
End: 2023-03-07T18:00:00+01:00
Location: Warsaw, Pasteura 7

Probing baryon weak decays - from experiment to lattice QCD

from Monday, 6 March 2023 (09:00) to Tuesday, 7 March 2023 (18:00)

Monday, 6 March 2023
09:30 Welcome - Andrzej Kupsc (Uppsala University)
Welcome
- Andrzej Kupsc (Uppsala University)
09:30 - 09:45
09:45 From lattice QCD to experiment - general introduction - Johan Bijnens (Lund University)
From lattice QCD to experiment - general introduction
- Johan Bijnens (Lund University)
09:45 - 10:15
10:15 From theory to experiment - introduction - Stefan Leupold
From theory to experiment - introduction
- Stefan Leupold
10:15 - 10:45
10:45 Coffee break
Coffee break
10:45 - 11:15
11:15 Results on nucleon form factors using lattice QCD simulations at the physical point - Constantia Alexandrou
Results on nucleon form factors using lattice QCD simulations at the physical point
- Constantia Alexandrou
11:15 - 11:45
11:45 Calculations of parton distributions - Krzysztof Cichy
Calculations of parton distributions
- Krzysztof Cichy
11:45 - 12:15
12:15 Preliminary discussion
Preliminary discussion
12:15 - 12:30

12:30 Lunch
Lunch
12:30 - 14:00
14:00 Nonleptonic decays of heavy baryons - the perspective of theory - Stefan Groote (University of Tartu, Institute of Physics)
Nonleptonic decays of heavy baryons - the perspective of theory
- Stefan Groote (University of Tartu, Institute of Physics)
14:00 - 14:30
15:00 Open discusion
Open discusion
15:00 - 15:30

15:30 Coffee break
Coffee break
15:30 - 16:00

16:00 Open discussion
Open discussion
16:00 - 17:30

17:55 Meeting on the bus (Pasteura 7)
Meeting on the bus (Pasteura 7)
17:55 - 18:00

18:30 Dinner
Dinner
18:30 - 22:00
Tuesday, 7 March 2023
09:30 Welcome 2nd day - Andrzej Kupsc (Uppsala University)
Welcome 2nd day
- Andrzej Kupsc (Uppsala University)
09:30 - 09:35
09:35 Semileptonic decays of spin-entangled baryon-antibaryon pairs - Varvara Batozskaya (National Centre for Nuclear Research (PL))
Semileptonic decays of spin-entangled baryon-antibaryon pairs
- Varvara Batozskaya (National Centre for Nuclear Research (PL))
09:35 - 10:00
10:00 Lambda_c --> Lambda X and semileptonic form factors - Gunnar Bali (Universität Regensburg)
Lambda_c --> Lambda X and semileptonic form factors
- Gunnar Bali (Universität Regensburg)
10:00 - 10:30
10:30 Coffee break
Coffee break
10:30 - 11:00
11:00 Multihadronic charm baryon decays with Lambda hyperons - Joan Ruiz Vidal
Multihadronic charm baryon decays with Lambda hyperons
- Joan Ruiz Vidal
11:00 - 11:30
11:30 Towards CP violation in baryons from lattice QCD - Maxwell Hansen
Towards CP violation in baryons from lattice QCD
- Maxwell Hansen
11:30 - 12:00
12:00 Lunch
Lunch
12:00 - 14:00
14:00 Baryon reconstruction at Belle - Andrzej Bozek (Polish Academy of Sciences (PL))
Baryon reconstruction at Belle
- Andrzej Bozek (Polish Academy of Sciences (PL))
14:00 - 14:30
14:30 Testing the standard model predictions with B -> P P decays - Adam Szabelski (National Centre for Nuclear Research (PL))
Testing the standard model predictions with B -> P P decays
- Adam Szabelski (National Centre for Nuclear Research (PL))
14:30 - 15:00
The starting point to our discussion is the ”B → Kπ puzzle”. We show, that although the ”puzzle” can be resolved by a more detailed analysis, there is a more fundamental question that needs to be addressed: Is New Physics necessary to describe the experimentally observed asymmetries and branching fractions of the B → P P decays? We perform a phenomenological analysis based on fits of an model-independent New Physics parameterisation and obtain exclusion χ2 plots of the two ad-hoc parameters (magnitude and a weak phase) sensitive to New Physics. The results show that the Standard Model expectation value lies within 2σ with respect to the global minimum but the overall picture is not well constrained by the existing data. Our results are mostly sensitive to the time-dependent asymmetry and branching fraction of the B 0 → K 0 π 0 decay. New experimental outcomes are highly expected and results of this analysis provide strong hints for improvement of precision in current experiments LHCb and Belle II.
15:00 Open discussion
Open discussion
15:00 - 15:30

15:30 Coffee break
Coffee break
15:30 - 16:00

16:00 Open discussion
Open discussion
16:00 - 17:00
17:00 Summary - Andrzej Kupsc (Uppsala University)
Summary
- Andrzej Kupsc (Uppsala University)
17:00 - 17:05