FLASY 2025 - 11th Workshop on Flavour Symmetries and Consequences in Accelerators and Cosmology

Session

Afternoon session

30 Jun 2025, 14:30

Aula Magna Architettura "Adalberto Libera" (Roma Tre)

Conveners

Afternoon session

• Joao Penedo (INFN Roma Tre)

Afternoon session

• Joao Penedo (INFN Roma Tre)

Afternoon session

• Davide Meloni (Istituto Nazionale di Fisica Nucleare)

7. Modular invariance and the strong CP problem

Ferruccio Feruglio (Istituto Nazionale di Fisica Nucleare)

30/06/2025, 14:30

I discuss a set of conditions under which the strong CP problem is solved by spontaneous CP violation. Such conditions find their natural realization in anomaly-free modular invariant supersymmetric theories, suggesting a common solution to the strong CP problem and the flavor puzzle. In its minimal realization, this solution requires a single chiral multiplet, beyond those of the MSSM. If one...

61. Flavor symmetries and DM stability

Eduardo Peinado

30/06/2025, 15:00

62. Lepton Number Violation: From the Cosmos to the Lab

Julia Harz (Technical University of Munich (TUM))

30/06/2025, 15:30

45. Updated result from µ+→e+ γ search in MEGII and future projects

Paolo Walter Cattaneo (Istituto Nazionale di Fisica Nucleare)

30/06/2025, 16:30

We report the result of the search for the decay µ+ → e+ γ undertaken at the Paul Scherrer
Institut in Switzerland with the MEG II experiment using the data collected in the 2021–2022
physics runs. The MEG II detector consists of a spectrometer built around a solenoidal
magnet delivering a gradient field, consisting of a large cylindrical drift chamber and a
highly segmented timing counter...

63. Observation of the 𝐾⁺ → 𝜋⁺𝜈𝜈 decay and measurement of its branching ratio at NA62

Francesco Brizioli (INFN Perugia (IT))

30/06/2025, 17:00

91. Probing flavour symmetry and modular symmetry theories in ESSnuSB and other neutrino experiments

Monojit Ghosh (Ruđer Bošković Institute, Zagreb, Croatia)

04/07/2025, 14:30

ESSnuSB is a proposed future accelerator based experiment in Sweden to study neutrino oscillation. The main aim of this experiment is to measure the leptonic CP phase $\delta_{\rm CP}$ by probing the second oscillation maximum. The other future long-baseline experiments which will also study the phenomenon of neutrino oscillations are T2HK in Japan and DUNE in USA which . Apart from measuring...

87. Goofy Symmetries

Andreas Trautner

04/07/2025, 15:00

41. Spontaneous CP Violation in an Axion Model: Implications for Leptonic Flavor and the Minimal Seesaw

Sin Kyu Kang (Seoul National University of Science and Technolofy)

04/07/2025, 15:30

We investigate an extension of the Dine–Fischler–Srednicki–Zhitnitsky (DFSZ) axion model that realizes spontaneous CP violation and explores its implications for leptonic flavor structure within the framework of the minimal seesaw mechanism. By introducing singlet heavy Majorana neutrinos and an additional complex singlet scalar, we construct the extended Yukawa and scalar sectors necessary...