Research
Theory and Phenomenology of Particle Interactions at High Energies:
- Flavour Physics in the SM and beyond.
- Flavour Symmetries and Flavour Violation in SMEFT.
- Hadronic Matrix Elements for exclusive b decays.
- Phenomenology of Rare b-Hadron Decays.
- Light-cone distribution amplitudes and sum rules.
- Soft-Collinear Effective Theory.
- Heavy-Quark Effective Theory.
Also:
- Generalized Parton Distributions.
- Eta-Eta’ Mixing.
| DFG Research Unit FOR 1873 “Quark Flavour Physics and Effective Field Theories” (2013-2019) Project 6: “New Physics and Flavour Symmetries” | |
| DFG Collaborative Research Center TRR 257 “Particle Physics Phenomenology after the Higgs Discovery” (since 2020) Project C2a: “Hadronic matrix elements and exclusive semileptonic decays” (with T. Mannel) Project C2b: “Exclusive non-leptonic and rare b-quark decays” (with T. Huber) | |
| Color-Meets-Flavor Joint Teaching, Research and Outreach Activities between Bonn-Dortmund-Siegen-Jülich |
Group Members:
- Jack Jenkins (Postdoc)
- Tom Tong (Postdoc)
- Jaime del Palacio Lirola (PhD Student)
- Emir Emirovic, Tom Mockenhaupt (Students)
Teaching:
Winter term 2024/25
- Kontinuierliche Symmetriegruppen
- Beyond the SM (with Tom Tong)
Summer term 2024
- Theoretische Physik 3 (Elektrodynamik)
Winter term 2023/24
- Konzepte und Phänomene der Teilchenphysik
Summer term 2023
- Theoretische Physik 5 (Statistische Physik)
- Kontinuierliche Symmetriegruppen
- Flavour Physics [with A. Lenz and J. Albrecht (TU Dortmund)]
Winter term 2022/23
- Theoretische Teilchenphysik II
Publications
Some recent work:
- Non-factorisable Contributions of Strong-Penguin Operators in $\Lambda_b \to \Lambda \ell^+\ell^-$ Decays
Thorsten Feldmann, Nico Gubernari
e-Print: 2312.14146 [hep-ph] - Structure-dependent QED effects in exclusive $B$-meson decays
Philipp Böer (U. Mainz, PRISMA), Thorsten Feldmann (Siegen U.)
e-Print: 2312.12885 [hep-ph] - Soft-overlap contribution to 𝑩𝒄 → 𝜼𝒄 form factors: diagrammatic resummation of double logarithms
Philipp Böer (U. Mainz, PRISMA and Mainz U., Inst. Phys.), Guido Bell (Siegen U.), Thorsten Feldmann (Siegen U.), Dennis Horstmann (Siegen U.), Vladyslav Shtabovenko (Siegen U.)
e-Print: 2309.08410 [hep-ph]. Published in: PoS RADCOR2023 (2024), 086. - Contribution of the electromagnetic dipole operator O7 to the B¯s→μ+μ- decay amplitude
Thorsten Feldmann (Siegen U.), Nico Gubernari (Siegen U.), Tobias Huber (Siegen U.), Nicolas Seitz (Siegen U.)
e-Print: 2211.04209 [hep-ph]. Published in: Phys.Rev.D 107 (2023) 1, 013007 - Muon-electron backward scattering: a prime example for endpoint singularities in SCET
Guido Bell (Siegen U.), Philipp Böer (U. Mainz, PRISMA and Mainz U., Inst. Phys.), Thorsten Feldmann (Siegen U.
e-Print: 2205.06021 [hep-ph]. Published in: JHEP 09 (2022), 183 - Systematic parametrization of the leading B-meson light-cone distribution amplitude
Thorsten Feldmann (Siegen U.), Philip Lüghausen (ORIGINS, Garching and Munich, Tech. U.), Danny van Dyk (Munich, Tech. U.)
e-Print: 2203.15679 [hep-ph]. Published in: JHEP 10 (2022), 162 - Constraining flavour patterns of scalar leptoquarks in the effective field theory
Marzia Bordone (Siegen U. and Turin U. and INFN, Turin), Oscar Catà (Siegen U.), Thorsten Feldmann (Siegen U.), Rusa Mandal (Siegen U.)
e-Print: 2010.03297 [hep-ph]. Published in: JHEP 03 (2021), 122 - The Belle II Physics Book
Belle-II Collaboration • E. Kou (Orsay, LAL)(ed.) et al.
e-Print: 1808.10567 [hep-ex]. Published in: PTEP 2019 (2019) 12, 123C01, PTEP 2020 (2020) 2, 029201 (erratum)
Citation Summary (inspirehep.net)
CV
- since 11/2011: Professor at University of Siegen (Germany).
- 01/2011 – 10/2011: Lecturer at IPPP Durham (UK).
- 10/2008 – 12/2010: Professor at TU Munich (Germany).
- 11/2004 – 09/2008: Lecturer/Research Associate at Univ. Siegen (Germany)
- 01/2003 – 10/2004: CERN Fellow, Geneva (Switzerland)
- 10/1999 – 12/2002: Postdoc at RWTH Aachen (Germany)
- 03/1997 – 09/1999: Postdoc at Univ. Wuppertal and FZ Juelich (Germany)
- 11/1993 – 02/1997: PhD student at Humboldt Univ. Berlin (Germany)
- 10/1988 – 09/1993: Diploma Student at Technical Univ. Darmstadt (Germany)