Talks and Guest Speakers

Unless otherwise indicated, talks take place in the
HIM building
Conference room 03-143 (3rd floor)
14:00 - 16:00

Upcoming Talks

12 August 2024
To be announced

Previous Talks

12 August 2024
The All-Charm Tetraquark and Its Contribution to Two-Photon Processes
Panagiotis Kalamidas
Lorentz room

22 July 2024
Project wrap-ups: Radii, X17
15 July 2024
Matteo Ronchi & Project wrap-us: XYZ
8 July 2024
Project wrap-up: Polarizabilities
24 June 2024
High-order calculation of the electron anomalous magnetic moment in QED
Dr. Sergey Volkov
3 June 2024
Project XYZ
13 May 2024
Polarizabilities
6 May 2024
Radii
29 April 2024
Project X17
22 April 2024
Hadronic contributions to the muon g-2 in a dispersive approach
Dr. Bai-Long Hoid
15 April 2024
Project XYZ
8 April 2024
Dr. Lei Cong
25 March 2024
Polarizabilities
11 March 2024
Radii
4 March 2024
Project XYZ: Dispersion analysis of the LHCb data: hadronic and production parts, preliminary results of the fit
Dr. Oleksandra Deineka
26 February 2024
Panagiotis Kalamidis
19 February 2024
Exploring Energy-Momentum-Tensor Form Factors and Associated Densities
Dr. Bao-Dong Sun, RUB
22 January 2024
The mystery of the sign in the pion's electric dipole polarisability
Leader: Vladimir
Main contributors: Volodymyr, Vadim, Franziska, Sotiris
Studying X17 through compact stellar objects
Leader: Vadim, Marc
Main contributors: Kees, Sotiris, Niklas
15 January 2024
Radii of unstable nuclei
Leader: Misha
Main contributors: Niklas, Aleksandr, Franziska, Vadim
Project XYZ: Dispersion relations for the system: poles (bound state, DCC, coupled-channel) and anomalous thresholds
Leader: Igor
Main contributors: Oleksandra, Slava, Viktoriia, Aleksandr
18 December 2023
Pitch your idea, part 2
Dr. Mikhail Gorshteyn and Volodymyr Biloshytskyi
20 November 2023
Pitch your idea, part 2
13 November 2023
Neutron beta decay within effective field theory
Dr. Oleksandr Tomalak
Pitch your idea, part 1
23 October 2023
Rehearsal for EINN
P. Kalamidas, C. Mommers, S. Pitelis, A. Pustyntsev
17 July 2023
Group seminar
Project 2
24 July 2023
Group seminar
Project 1
10 July 2023
Large relativistic corrections to exclusive hadronic decays of S-wave charmonium
Dr. Nikolai Kivel
Abstract
3 July 2023
KPh Seminar
19 June 2023
Second-order pion-nucleus potential for scattering and photoproduction
Viacheslav Tsaran
Hadronic contribution to the muon g-2 with emphasis on photon-photon fusion processes
Dr. Xiu-Lei Ren
12 June 2023
BESIII and Belle II constraints for axion-like particles from 3-photon events
Aleksandr Pustyntsev
22 May 2023
Group seminar
Project 2: Slava, Volodymyr, Viktoriia, Aleksandr
8 May 2023
KPh seminar
Several 15-minute talks
24 April 2023
Group seminar: Beyond standard model calculations in precision atomic physics
Project 1
17 April 2023
Exotic spectroscopy in Psi Psi systems
Dr. Xiu-Lei Ren and Viacheslav Tsaran
12 April 2023 at 13:00 (Medienraum, Physics building, 03-431)
Seminar and discussion
Prof. Dr. Martin Hoferichter
3 April 2023
Group seminar: Beyond standard model calculations in precision atomic physics
Project 1
27 March 2023 at 14:30
CMD-3 recent results on hadronic vacuum polarization contribution
20 March 2023
QED radiative corrections for accelerator neutrinos
Dr. Oleksandr Tomalak
Abstract
13 March 2023
Hamiltonian neural networks for chaotic motion
Timon Esser
6 March 2023
Phenomenological model for the γγ→3π reaction
Dr. Xiu-Lei Ren
27 February 2023
The three-pion-photon contribution to hadronic vacuum polarization
Dominic Schuh
6 February 2023
Group seminar
Project 2
30 January 2023
Group seminar
Project 2
23 January 2023
Nuclear Structure in Muonic Atoms
Dr. Vadim Lensky
16 January 2023
Group seminar
Project 1
9 January 2023
Coupled-channel dynamics in hadronic systems
Oleksandra Deineka
19 December 2022
Beyond standard model calculations in precision atomic physics
Dr. Franziska Hagelstein
Exotic spectroscopy in Psi Psi systems
Dr. Igor Danilkin
13 July 2022
Axial-vector exchange contribution to the hyperfine splitting
Dr. Pablo Sánchez Puertas, Universitat Autonoma de Barcelona
Abstract
25 May 2022 at 16:15
Remote seminar:
Relative topics on radiative correction and pion production in chiral dynamics
Xionghui Cao, Peking University
17 January 2022 at 16:00
Medium effects in pion-nucleus scattering
Slava Tsaran
10 January 2022 at 16:00
Soft-photon radiative corrections to the \(e^-p \to e^- p l^- l^+ \)process
Niklas Keil
13 December 2021 at 16:00
Application of quantum gauge field theory methods for describing the nonequilibrium arbitral dynamics
Viktoriia Ermolina
6 December 2021 at 16:00
Dark matter and dark sectors: a short review
Aleksandr Pustyntsev
29 November 2021 at 16:00
What is hiding below the DD threshold?
Oleksandra Deineka
22 November 2021 at 16:00
Dispersive approaches to hadronic light-by-light scattering and anomalous magnetic moment of the muon
Volodymyr Biloshytskyi
15 November 2021 at 16:00
X17 discovery potential in electron scattering
Johannes Backens
7 February 2020 at 11:15
The hadronic light-by-light scattering contribution to the muon anomalous magnetic moment from lattice QCD
Prof. Thomas Blum, University of Connecticut, USA
Lorentz Room

10 January 2020 at 14:15
Radiative corrections and form factors in Dalitz decays of \(\pi^0\), \(\eta^{(\prime)}\) and \(\Sigma^0\)
Dr. Tomas Husek (Valencia U., IFIC)
Abstract
17 December 2019 at 14:15
Some applications of chiral EFT in one- and two-baryon sectors
Dr. Xiu-Lei Ren (Ruhr-Universität Bochum)
Abstract
6 December 2019 at 14:15
On the non-perturbative structure of correlation functions: from form factors to confinement
Dr. Peter Lowdon (Ecole Polytechnique, CPHT, France)
Abstract
23 August 2019 at 14:15
Neutrino-electron scattering
Dr. Oleksandr Tomalak
19 July 2019 at 14:15
Hadronic contributions to light-by-light scattering and the anomalous magnetic moment of the muon
Volodymyr Biloshytskyi
Abstract
12 July 2019 at 14:15
Concept of anomalies and introduction of the Wess-Zumino-Witten action
Ardit Krasniqi
Abstract
5 July 2019 at 14:15
Isospin breaking effects in low-energy precision tests
Dr. Mikhail Gorshteyn
Abstract
28 June 2019 at 14:15
Meson decays \(PV\gamma\) and \(PVl^{+}l^{-}\)
Hans Christian Lange
Abstract
21 June 2019 at 14:15
An improved parametrization of the pion-nucleus optical potential for p-shell nuclei
Viacheslav Tsaran
Abstract
7 June 2019 at 14:15
Leading order corrections to the Bethe-Heitler process in the \(\gamma p\rightarrow l^+l^-p \) reaction
Matthias Heller
Abstract
24 May 2019 at 14:15
Dispersive analysis of the \( \gamma\gamma^* \to \pi\pi, \pi\eta\) processes
Oleksandra Deineka
Abstract
Tuesday, 21 May 2019 at 12:00
Dispersive techniques for two-loop calculations
Prof. Aleksandrs Aleksejevs
Abstract
17 May 2019 at 14:15
Accessing the real part of the forward elastic quarkonium -- proton scattering amplitude close to threshold
Oleksii Gryniuk
Abstract
3 May 2019 at 14:15
The role of charged exotic states in \(e^+e^- \to \psi(2S) \pi^+ \pi^-\)
Daniel Molnar
Abstract
10 May 2019 at 14:15
Towards a combined analysis of inclusive/exclusive electroproduction off protons
Dr. Astrid Hiller Blin
Abstract
8 March 2019 at 14:15
The hadronic light-by-light contribution to the muon's anomalous magnetic moment
Dr. Igor Danilkin
Abstract
8 February 2019 at 14:15
The problem of neutrino cross-sections: theoretical and experimental challenges
Dr. Federico Sanchez Nieto (Universität Genf)
14 December 2018 at 14:15
Many-body nuclear theory
Dr. Alexander Tichai (IRFU, Saclay)
Abstract
15 June 2018 at 14:15
Hadronic molecules in the spectrum of heavy quarkonia within an effective field-theory approach
Dr. Arseniy Filin
Abstract
23 May 2018 at 14:15
Dispersive analysis of \(\mathbf{\gamma \gamma^* \to \pi \eta}\)
Oleksandra Deineka
27 April 2018 at 14:15

Superconvergence sum rules for radiative decays of quarkonium states
Victor Ananyev

20 April 2018 at 14:15

Low-energy proton structure and two-photon exchange
Dr. Oleksandr Tomalak

13 April 2018 at 14:15

Constraints from finite-energy sum rules on virtual Compton scattering
Dr. Astrid Hiller Blin

06 April 2018 at 14:15

Higher-order QED effects in elastic lepton-nucleon scattering
Oleksandr Koshchii
Abstract

23 March 2018 at 14:15

Theoretical description of the e+e− → J/ψ(ψ')π+π−
Daniel Molnar

20 March 2018 at 11:00 

Solar pp-fusion rate and electroweak interactions
Hilla De-Leon
HIM, 3rd Floor, Room 03.143
Abstract

09 March 2018 at 14:15

Hadronic light-by-light scattering and the muon's (g-2)
Dr. Igor Danilkin

02 March 2018 at 14:15

Chiral perturbation theory in the presence of external electromagnetic fields
Roman Langebach

23 February 2018 at 14:15

Soft-photon corrections to the Bethe-Heitler process in the \(\gamma p \rightarrow l^+l^-p\) reaction
Matthias Heller

09 February 2018 at 14:15

First extraction of the proton dynamical polarizabilities from real Compton scattering data
Stefano Sconfietti (INFN Pavia)

19 January 2018 at 14:15

Generating a resonance-like structure in the reaction \(B_c\to B_s \pi\pi\)
Dr. Xiao-Hai Liu (Jülich Center for Hadron Physics)
Abstract

12 January 2018 at 14:15

Improved pion-nucleus optical potential
Viacheslav Tsaran

8 December 2017 at 14:15

Two-state structure of the \(D_0^*(2400) \) peak: evidence from theory, LQCD, and experiment
Dr. Miguel Albaladejo (Universidad de Murcia, Spain)
Abstract

1 December 2017 at 14:15

Dispersion relations for \(K_S→\gamma^*\gamma^*\)
Ramon Stucki (University of Bern, Switzerland)
Abstract

24 November 2017 at 14:15

Pole hunting on the unphysical Riemann sheets and its application to a0(980)
Oleksandra Deineka

17 November 2017 at 14:15

EWBox project for the Hadronic Physics Initiative - Horizon2020
Dr. Mikhail Gorshteyn
Abstract

25 October 2017 at 16:00

Hadronic parity violation: a new paradigm
Prof. Dr. Barry R. Holstein (UMass Amherst)

18 August 2017 at 14:15

Chiral perturbation theory in the presence of external electromagnetic fields
Roman Langenbach

11 August 2017 at 14:15

Two-photon exchange correction in elastic lepton-proton scattering. Dispersive and model calculations
Dr. Oleksandr Tomalak

04 August 2017 at 14:15

Exotic physics in eta-pi production at COMPASS
Dr. Vladiszlav Pauk

21 July 2017 at 14:15

CP-violating decays \(\eta(\eta'€™)\to\pi\pi\) and the neutron EDM
Dr. Mikhail Gorshteyn

14 July 2017 at 14:15

Twisted photons: Introduction and applications to hadronic and atomic photoexcitation
Prof. Dr. Carl E. Carlson

23 June 2017 at 14:15

What  can we learn about meson structure from electroproduction reactions
Dr. Nikolai Kivel

02 June 2017 at 14:15

Low-energy structure of the nucleon: Connecting real and virtual Compton scattering
Dr. Vadim Lensky

19 May 2017 at 14:15

Exciting nucleons in Compton scattering and hydrogen-like atoms
Franziska Hagelstein

12 May 2017 at 14:15

New physics searches with muons
Dr. Robert Szafron

21 April 2017 at 14:15

Accessing the real part of amplitudes of the forward scatterings of J/psi and phi mesons off the proton from photoproduction on proton around threshold
Oleksii Gryniuk

09 December 2016 at 14:15

Comprehensive amplitude analysis of \(\gamma\gamma\to\pi\pi\) and KK below 1.5 GeV
Dr. Lingyun Dai (Julich)

01 December 2016 at 14:15

Eta-Eta' mixing and the derivative of the topological susceptibility at zero momentum transfer
Prof. N.F. Nasrallah (Lebanese Univ., Tripoli)

25 November 2016 at 14:15

Theoretical study of \(\gamma\gamma\to\pi\eta\)
Oleksandra Deineka

18 November 2016 at 15:00

Electromagnetic interactions with light baryons in covariant ChPT
Astrid Blin (Valencia)

11 October 2016 at 14:00

Nuclear structure and reactions with Halo-EFT
Prof. Dr. Renato Higa
Abstract

12 August 2016 at 14:00

Coupled-channel dynamics in mesonic systems and its application to photon-fusion reactions
Dr. Igor Danilkin

19 July 2016 at 16:00

An iterative Monte Carlo determination of spin-dependent PDFs and fragmentation functions
Dr. Jacob Ethier
Abstract

15 July 2016 at 14:00

Leptonic decays of P-wave quarkonia within the NRQCD framework
Dr. Nikolai Kivel

01 July 2016 at 14:00

Chiral perturbation theory and nucleon Compton scattering
Dr. Vadim Lenskiy

17 June 2016 at 14:00

Proton structure in muonic hydrogen
Franziska Hagelstein

10 June 2016 at 14:00
\(\eta'-\pi\) production and search for exotic mesons at COMPASS and JLab12
Dr. Vladiszlav Pauk (JLab)
03 June 2016 at 14:00

The \(\eta-\eta'\) system in large-Nc chiral perturbation theory
Patricia Bickert

13 May 2016 at 14:00

Electroproduction of nucleon resonances in QCD
Dr. Igor Anikin (Dubna University and University of Regensburg)

22 April 2016 at 14:00

Forward Compton scattering off the proton: Phenomenology and a direct experimental assessment
Oleksii Gryniuk

15 April 2016 at 14:30

Probing non-standard charged-current interactions: From ultra cold neutrons to the LHC
Dr. Martin González-Alonso (IPN de Lyon/CNRS)

01 April 2016 at 14:00
Nucleon polarizabilities from multipole analysis of Compton scattering data
Nadiia Krupina
18 März 2016 at 14:00

Two-photon exchange corrections in elastic lepton-proton interaction
Oleksandr Tomalak

11 March 2016 at 14:00

Application of light-by-light sum rules to the charmonium system
Maria Anasova

Searching for axion-like particles at MAMI and MESA
Victor Ananyev

26 February 2016 at 14:00

Updated pseudoscalar contribution to the hadronic light-by-light of the muon (g-2)
Pablo Sanchez Puertas

05 February at 14:00

Modeling new XYZ exotic states
Alessandro Pilloni (JLAB)

29 January 2016 at 14:00

Renormalization group analysis of X(3872) radiative decays
Daniel Molnar

22 January 2016 at 14:00

Born-Oppenheimer approximation, effective field theory and quarkonium hybrids
Dr. Jaume Tarrús Castellà

27 November 2015 at 15:00

Analytic evolution of singular distribution amplitudes in QCD
Dr. Asli Tandogan Kunkel
Abstract

10 November 2015 at 14:00

Lepton universality test in the photoproduction of \(e^+e^-\) versus \(\mu^+\mu^-\) pairs on a proton target
Dr. Vladyslav Pauk