Fall Workshop of the RTG 2044

9 Oct 2025, 08:45 → 10 Oct 2025, 18:00 Europe/Zurich

Lecture Hall 01 007 (AP Building)

This year's Fall workshop will take place from October 9 - 10, 2025 at the University of Freiburg

Venue: Lecture Hall 01 007 in the AP building, Hermann-Herder-Str. 6, Freiburg

 

Coffee breaks and poster session will be set up in the Physics Highrise, ground floor.

Thursday 9 October

1 Welcome & Organization

Speaker: Markus Schumacher (University of Freiburg (DE))

2 Lecture: Electroweak Baryogenesis, Part 1

Electroweak baryogenesis links the origin of the Universe’s
matter–antimatter asymmetry to physics at the electroweak scale. These
lectures review the observational evidence for a cosmic baryon
asymmetry, present Sakharov’s three conditions for baryogenesis, and
discuss how and why the Standard Model falls short. Emphasis will be
placed on sphaleron-mediated baryon number violation, a too small CKM
CP violation, and the need for a strong first-order electroweak phase
transition. About the latter point, we will go through the main
theoretical tools to grasp the phase diagram of the Standard Model.

Speaker: Simone Biondini

11:00 Coffee break (Foyer Physics Highrise)

3 Studies of the Lorentz angle in the ATLAS Semiconductor Tracker and development under irradiation

Speaker: Katharina Eva Haussler (University of Freiburg (DE))

4 Search for local CP violation in the phase space of $D^0 \rightarrow \pi^+ \pi^- \pi^0$ decays

Speaker: Todor Georgiev Todorov (University of Freiburg (DE))

12:30 Lunch break

5 Lecture: Higgs Boson and El-weak Physics at Current and Future Colliders, Part 1

Speaker: Markus Klute (Karlsruhe Inst. of Technology (GER))

2025-10-09-v01-mk-ufr.pdf

16:00 Coffee break + Group Photo

Poster Session

6 Theoretical predictions for tau-pair production in ultraperipheral heavy-ion collisions

Speaker: Jose Luis Hernando Ariza (Uni Freiburg)

7 Combined measurements of Higgs boson production at the ATLAS experiment

Speaker: Ahmed Markhoos (University of Freiburg (DE))

poster.pdf

8 A Digital SiPM in Liquid Xenon

Speaker: Tiffany Luce

9 Search for Di-Higgs Production in the $HH\to {bb}\tau\tau$ Channel with the ATLAS Detector $t\bar{t}$ Fake-$\tau_\text{had}\tau_{had}$ Background Estimation and GNN Optimisation

Speaker: Baktash Amini (University of Freiburg)

posterESHEP2025.pdf

10 Towards an Electroweak Parton Shower

Speaker: Jo Reimer

11 Renormalization of the general Two-Higgs-Doublet Model

Speaker: Robin Feser

12 Test Beam Analysis of Irradiated CMOS Strip Sensors

Speaker: Fabian Simon Lex (University of Freiburg (DE))

13 Construction and investigation of optimal observables for testing CP invariance in the decay H → τ⁺τ⁻ at the LHC

Speaker: Yann Robert Stoll (University of Freiburg (DE))

14 Tau identification with graph neural networks in ATLAS

Speaker: Pim Bijl (University of Freiburg (DE))

15 Fast Timing with 3D Silicon Sensors

Speaker: Iveta Zatocilova (University of Freiburg (DE))

16 Precision predictions of partial decay widths in the general Two-Higgs-Doublet Model

Speaker: Jose Hernandez

17 Integrating out a Heavy Higgs Singlet - When SMEFT is not Enough

Speaker: Sebastian Schuhmacher (Albert-Ludwigs-Universität Freiburg)

Friday 10 October

18 Lecture: Higgs Boson and El-weak Physics at Current and Future Colliders, Part 2

Speaker: Markus Klute (Karlsruhe Inst. of Technology (GER))

2025-10-10-v02-mk-ufr.pdf

11:00 Coffee break

19 The Central Data Facility (CDF) at University of Freiburg

Speakers: Jan Leenderste (University of Freiburg), Milanka Matic-Chalkitis (University of Freiburg)

2025-10-10_CDF-Presentation_GRK2044.pdf

20 Searches for lepton-flavour violation in decays of Z bosons using a data-driven background estimate with the ATLAS experiment

Speaker: Naman Kumar Bhalla (University of Freiburg (DE))

BhallaNK_ZLFV_RTGFallWorkshop2025.pdf

12:30 Lunch break

21 Lecture: Electroweak Baryogenesis, Part 2

Speaker: Simone Biondini

16:00 Coffee break

22 SHiP Readout Electronics Development for the Surrounding Background Tagger

Speaker: Tim Aaron Molzberger (University of Freiburg (DE))

23 Good Scientific Practice

Speakers: Maria Isabel Dias Astros , Robin Glade-Beucke (Albert-Ludwigs Universität Freiburg)

24 Info about future RTG perspective & end of workshop

Speaker: Heidi Rzehak