Sep 22 – 25, 2025
University of Warsaw, Faculty of Physics
Europe/Warsaw timezone

Enhancing prospects of sub-GeV majoron at intensity frontier experiments through flavor-changing processes

Sep 24, 2025, 3:30 PM
15m
1.40 (University of Warsaw, Faculty of Physics)

1.40

University of Warsaw, Faculty of Physics

Parallel Parallel 1

Speaker

Krzysztof Jodlowski (IBS CTPU-PTC)

Description

Majoron ($J$) is a feebly-interacting axion-like particle that can realize type-I seesaw mechanism, which also leads to flavor violating processes (FVP). We revisit prospects of sub-GeV majoron at intensity frontier experiments. We show that FVP allow to probe the majoron mass region $\sim 100$ MeV to $1$ GeV, complementary to astrophysical bounds and dedicated experiments probing FVP. We also study muon-beam experiments, where for the majoron lighter than muon, the $\mu \to e + J$ decays can put limits competitive with those set by supernovae.

Primary author

Krzysztof Jodlowski (IBS CTPU-PTC)

Presentation materials