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PREN 2023 (Proton Radius European Network - STRONG 2020) & μASTI (Muonic Atom Spectroscopy Theory Initiative)

Jun 26 – 30, 2023
Europe/Berlin timezone

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Contribution List

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10. Welcome and introduction to PREN & µASTI
Franziska Hagelstein, Randolf Pohl (University of Mainz)
6/26/23, 10:00 AM
9. Toward XUV frequency comb spectroscopy of the 1 S–2 S transition in He+
Jorge Moreno (Max-Planck-Institut für Quantenoptik)
6/26/23, 11:00 AM
12. First observation of the 1S-2S transition of singly-ionized helium in an atomic beam
Kjeld Eikema (Vrije Universiteit Amsterdam)
6/26/23, 11:30 AM
13. 1S-3S cw Spectroscopy on deuterium atoms
Pauline YZOMBARD (Laboratoire Kastler Brossel, Sorbonne Université, CNRS, ENS, College de France)
6/26/23, 12:00 PM
15. Precision spectroscopy of molecular hydrogen ions: recent progress
Prof. Stephan Schiller (Heinrich-Heine-Universität Düsseldorf)
6/26/23, 4:30 PM
55. Hyperfine spin-flip spectroscopy of trapped HD+: towards solving a 9σ discrepancy with theory (REMOTE)
Jeroen Koelemeij (Vrije Universiteit Amsterdam)
6/26/23, 5:00 PM
14. Motional ground-state cooling of H2+
Daniel Kienzler (ETH Zurich)
6/26/23, 5:30 PM
16. The muX experiment at PSI
Andreas Knecht (Paul Scherrer Institut)
6/27/23, 9:00 AM
17. Precision X-ray spectroscopy of light muonic atoms with metallic magnetic calorimeters
Frederik Wauters
6/27/23, 9:30 AM
21. Polarizability contribution to the hyperfine splitting in muonic deuterium from effective field theory
Thomas Richardson
6/27/23, 10:00 AM
19. Nucleon structure in light muonic atoms: muonic hydrogen
Vadim Lensky (JGU Mainz)
6/27/23, 11:00 AM
20. Lattice QCD Calculation of the Two-Photon Exchange Contribution to the Muonic-Hydrogen Lamb Shift (REMOTE)
Yang Fu (Peking University)
6/27/23, 11:30 AM
18. Nuclear structure corrections in light muonic atoms
Simone LiMuli
6/27/23, 12:00 PM
22. TBD
Carl Carlson (William & Mary)
6/27/23, 2:30 PM
23. GDH Programme at JLab
Simon Sirca (U of Ljubljana)
6/27/23, 3:00 PM
24. Proton spin structure functions and polarizability contribution to Hyperfine Splitting in (muonic) hydrogen (REMOTE)
David Ruth (University of New Hampshire)
6/27/23, 3:30 PM
25. Electromagnetic form factors of light nuclei in chiral EFT
Evgeny Epelbaum (Ruhr University Bochum)
6/27/23, 4:30 PM
26. Calculation of Dynamical Response Functions Using a Bound-State Method (REMOTE)
Niels Walet (University of Manchester)
6/27/23, 5:00 PM
27. Precision calculation of the recoil–finite-size correction for the hyperfine splitting in muonic and electronic hydrogen
Yong-Hui Lin (University of Bonn, HISKP)
6/27/23, 5:30 PM
28. Searches for New Physics along the sensitivity frontier: a few examples
Dmitry Budker
6/28/23, 9:00 AM
38. King plot nonlinearities in Ca+
Anna Viatkina (PTB, Braunschweig; TU Braunschweig)
6/28/23, 9:30 AM
57. TBD (REMOTE)
Claudia Frugiuele
6/28/23, 10:00 AM
30. QED @ NNLO with McMule
Adrian Signer (PSI / UZH)
6/28/23, 11:00 AM
31. Future and past TPE experiments
Jan Bernauer (Stony Brook University / RIKEN BNL Research Center)
6/28/23, 11:30 AM
32. The MUSE experiment
Tigran Rostomyan (Paul Scherrer Institut)
6/28/23, 12:00 PM
33. Proton Radius within the Program of AMBER at CERN
Jan Friedrich (TU Munich)
6/28/23, 2:30 PM
34. Tests of mu-e universality
Michael Kohl (Hampton University)
6/28/23, 3:00 PM
52. At the heart of the proton (REMOTE)
Egle Tomasi (IRFU/SPhN)
6/28/23, 3:30 PM
36. Muon loops in ordinary atoms (REMOTE)
Maxim Pospelov (University of Minnesota)
6/28/23, 4:30 PM
37. Exploring fundamental interactions and constants with trapped ions
Sven Sturm (MPIK)
6/28/23, 5:00 PM
29. Self-consistent extraction of spectroscopic bounds on light new physics
Yotam Soreq (Technion)
6/28/23, 5:30 PM
39. TBD
Krzysztof Pachucki (University of Warsaw)
6/29/23, 9:00 AM
Talk
QED
40. Hyperfine structure of the lower states of light muonic atoms
Prof. Paul Indelicato (Laboratoire Kastler Brossel-CNRS)
6/29/23, 9:30 AM
Talk
QED
41. TBD
Michael Eides (University of Kentucky)
6/29/23, 10:00 AM
Talk
QED
42. The PRad experiments at Jefferson Lab
Ashot Gasparian (NC A and T State University)
6/29/23, 11:00 AM
43. Measurement of the proton charge radius during the ULQ2 experiment
Clement Legris (ELPH, Tohoku University (Japan))
6/29/23, 11:30 AM
44. Low-energy electron scattering for nucleon and nuclei including exotic ones
Toshimi Suda (ELPH, Tohoku University)
6/29/23, 12:00 PM
45. TBD (REMOTE)
Andrea Vacchi (Department of Mathematics, Computer Science and Physics University of Udine & INFN Trieste)
6/29/23, 2:30 PM
46. Laser spectroscopy of muonic helium ions
Prof. Aldo Antognini (ETH Zurich and PSI, Switzerland)
6/29/23, 3:00 PM
47. The Muonic Hydrogen hyperfine splitting experiment at PSI
Ahmed Ouf (JGU Mainz & Paul Scherrer institute)
6/29/23, 3:30 PM
48. The Generalized Polarizabilities of the proton (REMOTE)
Hamza Atac, Nikos Sparveris (Temple University)
6/29/23, 4:30 PM
49. Measurement of Compton scattering at MAMI and extraction of nucleon polarizabilities
Vahe Sokhoyan
6/29/23, 5:00 PM
50. Measurement of the Nucleon Axial Form Factor from Charged-Current Elastic Antineutrino Scattering on Hydrogen (REMOTE)
Kevin McFarland (University of Rochester)
6/29/23, 5:30 PM
51. Electromagnetic form factors of the proton and neutron from lattice QCD
Mr Miguel Salg (University of Mainz)
6/30/23, 9:00 AM
Talk
Proton FF
56. Proton Form Factor Program at MESA
Harald Merkel
6/30/23, 9:30 AM
Talk
Proton FF
35. A novel approach for determining spatial moments of the proton charge density
Mariam ATOUI (IJCLab)
6/30/23, 10:00 AM
Talk
Proton FF
53. A precise determination of the weak mixing angle by parity violating electron scattering
Frank Maas
6/30/23, 11:00 AM
Talk
PV
54. Electroweak nuclear radii constrain isospin-breaking corrections to V_{ud}
Misha Gorshteyn (JGU Mainz)
6/30/23, 11:30 AM
Talk
PV
3. A novel approach for determining spatial moments of the proton charge density
Mariam ATOUI (IJCLab)
Talk

The internal structure of the nucleon is a field of intensive study. This structure can be experimentally probed through electron elastic scattering off a proton target. This allows the extraction of the proton electric and the magnetic form factors which characterize the charge and the magnetization densities. The spatial moments of the proton charge density are extracted using the electric...
11. Introduction to µASTI and summary of the workshop
Vladimir Pascalutsa (JGU Mainz)
6. Measurement of Compton scattering at MAMI and extraction of nucleon polarizabilities
Vahe Sokhoyan
Talk

Polarizabilities are fundamental properties related to the internal dynamics of the nucleon. They play a crucial role not only in our understanding of the nucleon, but also in other areas such as precision atomic physics. The experimental program performed by the A2 Collaboration at the MAMI accelerator facility in Mainz aims for an accurate extraction of the nucleon polarizabilities using...
2. Measurement of the proton charge radius during the ULQ2 experiment
Clement Legris (ELPH, Tohoku University (Japan))
Talk

Since 2010, the proton charge radius has been measured using electron scattering, atomic and muonic hydrogen spectroscopy and the results of these measurements tend to fit with a 0.84-fm or 0.88-fm radius. The cause of the discrepancy is not fully understood but some inconsistent results are pointed out: different radii are determined from the same transition of the hydrogen atom (1S-3S) [1,2]...
58. Nucleon structure in and out of muonic hydrogen
Dr Vadim Lensky (JGU Mainz)
4. Polarizability contribution to the hyperfine splitting in muonic deuterium from effective field theory
Thomas Richardson
Talk

Muonic atom spectroscopy provides a precision probe of electroweak physics and possible sources of Beyond the Standard Model physics such as dark matter and the violation of lepton flavor universality. However, uncertainties from nuclear theory are the main bottleneck in calculations of the energy levels for muonic atoms. Therefore, it is necessary to reduce these uncertainties in order to...
5. Precision Measurements with Simple Molecular Hydrogen Ions at ALPHATRAP
Matthew Bohman (Max Planck Institute for Nuclear Physics)
Poster

Molecular hydrogen ions offer a unique opportunity for testing fundamental physics at high precision. As simple three-body systems, the energy levels and properties of H2+, and its isotopologue HD+, are exactly calculable and precision spectroscopy enables measurement of fundamental constants such as the proton-to-electron mass ratio [1], including possible...
7. Tests of mu-e universality
Dr Michael Kohl (Hampton University)
Talk

Lepton universality (LU) typically refers to the lepton coupling, which is
considered to be the same for all charged leptons, if the interaction is
electroweak according to the Standard Model.
Lepton universality tests are hence a compelling probe for New Physics.
I will review the current status of mu-e universality and recent testing
efforts, with some emphasis on TREK/E36 at J-PARC and...
8. The MUSE experiment
Dr Tigran Rostomyan (Paul Scherrer Institut)
Talk

The MUon proton Scattering Experiment (MUSE) at the PiM1 beam line of the Paul Scherrer Institute was created a decade ago in response to the Proton Radius Puzzle, the difference observed between muonic hydrogen measurements of the proton charge radius and the existing electronic measurements. To date, MUSE has commissioned its experimental systems to the level needed for the measurements and...
59. µASTI session
60. µASTI session
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