Universität Siegen, Fakultät IV/Department Physik, Theoretische Physik 1, Walter-Flex-Straße 3, 57072 Siegen, Germany
Office: ENC B-124, Tel.: +49 271 740-3535, Fax: +49 271 740-3804
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.
Third-party Funding
| 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)
- Daniel Vladimirov (Master Student)
- Emir Emirovic, Tom Mockenhaupt (Students)
Publications
Citation Summary (inspirehep.net)
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]. Published in JHEP 03 (2024) 152 - Structure-dependent QED effects in exclusive $B$-meson decays
Philipp Böer (U. Mainz, PRISMA), Thorsten Feldmann (Siegen U.)
e-Print: 2312.12885 [hep-ph]. Published in: Eur.Phys.J.ST 233 (2024) 2, 299-323 - Soft-overlap contribution to 𝑩𝒄 → 𝜼𝒄 form factors: diagrammatic resummation of double logarithms
Philipp Böer (U. Mainz, PRISMA ), 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. - Strange-quark mass effects in the Bs meson’s light-cone distribution amplitude
Thorsten Feldmann (Siegen U.), Philip Lüghasen (Siegen U.), Nicolas Seitz (Siegen U.)
e-Print: 2306.14686 [hep-ph]. Published in: JHEP 08 (2023) 075 - 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
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
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)