Stefan Leupold
Professor at Department of Physics and Astronomy; Nuclear Physics
- Telephone:
- +46 18 471 34 41
- E-mail:
- stefan.leupold@physics.uu.se
- Visiting address:
- Ångströmlaboratoriet, Regementsvägen 10
752 37 Uppsala - Postal address:
- Box 516
751 20 UPPSALA
Short presentation
The research of my theory group is focused on the strong interaction, one of the four known fundamental forces. We contribute to high-precision standard-model calculations with the aim to search for differences between nature and our theoretical description of it. In addition, we want to gain a better quantitative understanding how quarks form composite objects, the hadrons.
For more details see also the presentation of my research group.
You can find me at Ångström office 12136.

Publications
Recent publications
Electromagnetic form factors of the transition from the Delta to the nucleon
Part of Physical Review D, 2025
- DOI for Electromagnetic form factors of the transition from the Delta to the nucleon
- Download full text (pdf) of Electromagnetic form factors of the transition from the Delta to the nucleon
Electroweak structure of the nucleon
Part of Nuovo cimento della societa italiana de fisica. C, Geophysics and space physics, 2024
- DOI for Electroweak structure of the nucleon
- Download full text (pdf) of Electroweak structure of the nucleon
Goldberger-Treiman relation and Wu-type experiment in the decuplet sector
Part of Physical Review D, 2024
- DOI for Goldberger-Treiman relation and Wu-type experiment in the decuplet sector
- Download full text (pdf) of Goldberger-Treiman relation and Wu-type experiment in the decuplet sector
Part of Physical Review D, 2023
- DOI for Light quark mass dependence of nucleon electromagnetic form factors in dispersively modified chiral perturbation theory
- Download full text (pdf) of Light quark mass dependence of nucleon electromagnetic form factors in dispersively modified chiral perturbation theory
Study of CP violation in hyperon decays at super-charm-tau factories with a polarized electron beam
Part of Physical Review D, 2022
- DOI for Study of CP violation in hyperon decays at super-charm-tau factories with a polarized electron beam
- Download full text (pdf) of Study of CP violation in hyperon decays at super-charm-tau factories with a polarized electron beam
All publications
Articles in journal
Electromagnetic form factors of the transition from the Delta to the nucleon
Part of Physical Review D, 2025
- DOI for Electromagnetic form factors of the transition from the Delta to the nucleon
- Download full text (pdf) of Electromagnetic form factors of the transition from the Delta to the nucleon
Electroweak structure of the nucleon
Part of Nuovo cimento della societa italiana de fisica. C, Geophysics and space physics, 2024
- DOI for Electroweak structure of the nucleon
- Download full text (pdf) of Electroweak structure of the nucleon
Goldberger-Treiman relation and Wu-type experiment in the decuplet sector
Part of Physical Review D, 2024
- DOI for Goldberger-Treiman relation and Wu-type experiment in the decuplet sector
- Download full text (pdf) of Goldberger-Treiman relation and Wu-type experiment in the decuplet sector
Part of Physical Review D, 2023
- DOI for Light quark mass dependence of nucleon electromagnetic form factors in dispersively modified chiral perturbation theory
- Download full text (pdf) of Light quark mass dependence of nucleon electromagnetic form factors in dispersively modified chiral perturbation theory
Study of CP violation in hyperon decays at super-charm-tau factories with a polarized electron beam
Part of Physical Review D, 2022
- DOI for Study of CP violation in hyperon decays at super-charm-tau factories with a polarized electron beam
- Download full text (pdf) of Study of CP violation in hyperon decays at super-charm-tau factories with a polarized electron beam
Part of Physical Review D, 2022
- DOI for Sum rule for the partial decay rates of bottom hadrons based on the dynamical supersymmetry of the (s)over-bar quark and the ud diquark
- Download full text (pdf) of Sum rule for the partial decay rates of bottom hadrons based on the dynamical supersymmetry of the (s)over-bar quark and the ud diquark
Part of Physical Review D, 2022
- DOI for Estimates for rare three-body decays of the Omega baryon using chiral symmetry and the Delta I=1/2 rule
- Download full text (pdf) of Estimates for rare three-body decays of the Omega baryon using chiral symmetry and the Delta I=1/2 rule
Electromagnetic transition form factors and Dalitz decays of hyperons
Part of European Physical Journal A, 2021
- DOI for Electromagnetic transition form factors and Dalitz decays of hyperons
- Download full text (pdf) of Electromagnetic transition form factors and Dalitz decays of hyperons
Electromagnetic form factors of the transition from the spin-3/2 Σ to the Λ hyperon
Part of Physical Review C. Nuclear Physics, 2020
- DOI for Electromagnetic form factors of the transition from the spin-3/2 Σ to the Λ hyperon
- Download full text (pdf) of Electromagnetic form factors of the transition from the spin-3/2 Σ to the Λ hyperon
Dynamics of critical fluctuations: Theory - phenomenology - heavy-ion collisions
Part of Nuclear Physics A, 2020
- DOI for Dynamics of critical fluctuations: Theory - phenomenology - heavy-ion collisions
- Download full text (pdf) of Dynamics of critical fluctuations: Theory - phenomenology - heavy-ion collisions
Radiative corrections for the decay Sigma(0) -> Lambda e(+)e(-)
Part of European Physical Journal C, 2020
- DOI for Radiative corrections for the decay Sigma(0) -> Lambda e(+)e(-)
- Download full text (pdf) of Radiative corrections for the decay Sigma(0) -> Lambda e(+)e(-)
Nucleon parton distributions from hadronic quantum fluctuations
Part of Physical Review D, 2019
- DOI for Nucleon parton distributions from hadronic quantum fluctuations
- Download full text (pdf) of Nucleon parton distributions from hadronic quantum fluctuations
Constraining P and CP violation in the main decay of the neutral Sigma hyperon
Part of Physics Letters B, p. 535-541, 2019
- DOI for Constraining P and CP violation in the main decay of the neutral Sigma hyperon
- Download full text (pdf) of Constraining P and CP violation in the main decay of the neutral Sigma hyperon
Polarization observables in e(+) e(-) annihilation to a baryon-antibaryon pair
Part of Physical Review D, 2019
- DOI for Polarization observables in e(+) e(-) annihilation to a baryon-antibaryon pair
- Download full text (pdf) of Polarization observables in e(+) e(-) annihilation to a baryon-antibaryon pair
Low-energy axial-vector transitions from decuplet to octet baryons
Part of Physical Review D, 2019
- DOI for Low-energy axial-vector transitions from decuplet to octet baryons
- Download full text (pdf) of Low-energy axial-vector transitions from decuplet to octet baryons
Towards a dispersive determination of the pion transition form factor
Part of EPJ Web of Conferences, 2018
- DOI for Towards a dispersive determination of the pion transition form factor
- Download full text (pdf) of Towards a dispersive determination of the pion transition form factor
Dispersion relation for hadronic light-by-light scattering: pion pole
Part of Journal of High Energy Physics (JHEP), 2018
- DOI for Dispersion relation for hadronic light-by-light scattering: pion pole
- Download full text (pdf) of Dispersion relation for hadronic light-by-light scattering: pion pole
Part of Physical Review Letters, 2018
- DOI for Pion-Pole Contribution to Hadronic Light-By-Light Scattering in the Anomalous Magnetic Moment of the Muon
- Download full text (pdf) of Pion-Pole Contribution to Hadronic Light-By-Light Scattering in the Anomalous Magnetic Moment of the Muon
Chiral-partner D mesons in a heat bath within QCD sum rules
Part of Journal of Physics G, 2018
The relativistic chiral Lagrangian for decuplet and octet baryons at next-to-leading order
Part of European Physical Journal A, 2018
- DOI for The relativistic chiral Lagrangian for decuplet and octet baryons at next-to-leading order
- Download full text (pdf) of The relativistic chiral Lagrangian for decuplet and octet baryons at next-to-leading order
Radiative corrections to the η(') Dalitz decays
Part of Physical Review D, 2018
- DOI for Radiative corrections to the η(') Dalitz decays
- Download full text (pdf) of Radiative corrections to the η(') Dalitz decays
The nucleon as a test case to calculate vector-isovector form factors at low energies
Part of European Physical Journal A, 2018
- DOI for The nucleon as a test case to calculate vector-isovector form factors at low energies
- Download full text (pdf) of The nucleon as a test case to calculate vector-isovector form factors at low energies
Measurement of the ω → π+π−π0 Dalitz plot distribution: The WASA-at-COSY Collaboration
Part of Physics Letters B, p. 418-425, 2017
- DOI for Measurement of the ω → π+π−π0 Dalitz plot distribution: The WASA-at-COSY Collaboration
- Download full text (pdf) of Measurement of the ω → π+π−π0 Dalitz plot distribution: The WASA-at-COSY Collaboration
The electromagnetic Sigma-to-Lambda hyperon transition form factors at low energies
Part of European Physical Journal A, 2017
- DOI for The electromagnetic Sigma-to-Lambda hyperon transition form factors at low energies
- Download full text (pdf) of The electromagnetic Sigma-to-Lambda hyperon transition form factors at low energies
Lifetime of the eta’ meson at low temperature
Part of Nuclear Physics A, p. 29-63, 2016
Part of Physical review D, 2016
Part of European Physical Journal C, 2015
- DOI for Two-hadron saturation for the pseudoscalar-vector-vector correlator and phenomenological applications
- Download full text (pdf) of Two-hadron saturation for the pseudoscalar-vector-vector correlator and phenomenological applications
Dispersive analysis of the pion transition form factor
Part of European Physical Journal C, p. 3180, 2014
- DOI for Dispersive analysis of the pion transition form factor
- Download full text (pdf) of Dispersive analysis of the pion transition form factor
Dynamics of the low-lying pseudoscalar and vector mesons
Part of PoS Bormio2013, 2013
Reactions with pions and vector mesons in the sector of odd intrinsic parity
Part of European Physical Journal A, p. 116, 2013
Off-equilibrium photon production during the chiral phase transition
Part of Annals of Physics, p. 331-393, 2013
Photon-fusion reactions from the chiral Lagrangian with dynamical light vector mesons
Part of European Physical Journal C, p. 2358, 2013
The impact of dissipation and noise on fluctuations in chiral fluid dynamics
Part of Journal of Physics G, 2013
The WASA focussing light guide disc DIRC
Part of Journal of Instrumentation, 2012
Towards an effective field theory for vector mesons
Part of Proceedings of Science, 2012
Vector-meson dominance revisited
Part of EPJ Web of Conferences, 2012
Radiative decays of vector and pseudoscalar nonets
Part of EPJ Web of Conferences, 2012
Exclusive measurement of the eta -> pi(+) pi(-) gamma decay
Part of Physics Letters B, p. 243-249, 2012
The impact of chirally odd condensates on the rho meson
Part of Physics Letters B, p. 200-206, 2012
Equilibration and relaxation times at the chiral phase transition including reheating
Part of Physics Letters B, p. 109-116, 2012
Electromagnetic transitions in an effective chiral Lagrangian with the eta ' and light vector mesons
Part of European Physical Journal A, p. 190, 2012
Nonequilibrium effects in dynamic symmetry breaking
Part of Acta Physica Polonica B, Proceedings Supplement, p. 1191-1196, 2012
MEASUREMENT OF dd -> (3)He p pi(-) WITH WASA-at-COSY
Part of International Journal of Modern Physics A, p. 697-698, 2011
INVESTIGATION OF THE CHARGE SYMMETRY CONSERVING REACTION dd -> (3)He n pi(0) WITH WASA-at-COSY
Part of International Journal of Modern Physics A, p. 598-600, 2011
SEARCH FOR EXOTIC EFFECTS IN eta MESON LEPTONIC DECAYS
Part of International Journal of Modern Physics A, p. 630-631, 2011
STUDY OF THE eta -> gamma e(+)e(-) DECAY WITH THE WASA-at-COSY
Part of International Journal of Modern Physics A, p. 650-651, 2011
WHAT IS THE NATURE OF THE ABC EFFECT?
Part of International Journal of Modern Physics A, p. 627-629, 2011
CHARGE SYMMETRY BREAKING IN dd -> (4)He pi(0) WITH WASA-at-COSY
Part of International Journal of Modern Physics A, p. 595-597, 2011
STUDIES OF MESON PRODUCTION AND DECAYS IN pd -> (3)He X WITH WASA-at-COSY
Part of International Journal of Modern Physics A, p. 652-653, 2011
Experimental study of ppη dynamics with WASA-at-COSY
Part of AIP Conference Proceedings, p. 402-405, 2011
Study of charge symmetry breaking in dd collisions with WASA-at-COSY
Part of AIP Conference Proceedings, p. 591-593, 2011
Search for the η → e+e−e+e− double Dalitz decay
Part of Journal of Physics: Conference Series, 2011
Meson Production and Decays with WASA at COSY
Part of AIP Conference Proceedings, p. 611-614, 2011
Measurement of the branching ratio of a rare decay η→π0γγ with WASA‐at‐COSY
Part of AIP Conference Proceedings, p. 594-597, 2011
Part of International Journal of Modern Physics A, p. 654-655, 2011
Design of a disc DIRC detector for the WASA experiment
Part of Nuclear Instruments and Methods in Physics Research Section A, p. 311-314, 2011
Measurement of the transition form factor of η meson with WASA-at-COSY
Part of AIP Conference Proceedings, p. 376-379, 2011
Nonequilibrium chiral fluid dynamics including dissipation and noise
Part of Physical Review C. Nuclear Physics, 2011
Chiral QCD sum rules for open-charm mesons
Part of Physical Review C. Nuclear Physics, 2011
Description of Fully Differential Drell-Yan Pair Production
Part of PoS, 2011
Part of Progress of Theoretical Physics Supplement, p. 260-269, 2010
Electromagnetic transition form factors of light vector mesons
Part of Physics Letters B, p. 191-201, 2010
Articles, review/survey
The anomalous magnetic moment of the muon in the Standard Model
Part of Physics reports, p. 1-166, 2020
- DOI for The anomalous magnetic moment of the muon in the Standard Model
- Download full text (pdf) of The anomalous magnetic moment of the muon in the Standard Model
Four-quark condensates in open-charm chiral QCD sum rules
Part of Progress in Particle and Nuclear Physics, p. 188-193, 2012
Electromagnetic transition form factors of mesons
Part of Progress in Particle and Nuclear Physics, p. 401-405, 2012
Collections (editor)
Conference papers
Reactions with pions and vector mesons in the sector of odd intrinsic parity
Part of Menu 2013 - 13Th International Conference Meson-Nucleon Physics And The Structure Of The Nucleon, 2014
- DOI for Reactions with pions and vector mesons in the sector of odd intrinsic parity
- Download full text (pdf) of Reactions with pions and vector mesons in the sector of odd intrinsic parity
Interactions of light mesons with photons
Part of Meson 2014 - 13th International Workshop on Production, Properties and Interaction of Mesons, 2014
Part of INPC 2013 - International Nuclear Physics Conference, Vol. 2, 2014
- DOI for Low-lying pseudoscalar and vector mesons and their dynamics: How to describe radiative reactions with an odd number of pions
- Download full text (pdf) of Low-lying pseudoscalar and vector mesons and their dynamics: How to describe radiative reactions with an odd number of pions
Non-equilibrium photon production arising from the chiral mass shift
2013
Studies of meson production and decays in pd -> 3HeX with WASA-at-COSY
2011
2011