Speaker
Matheus Hostert
(University of Minnesota)
Description
We point out novel kaon and pion decays to several leptons pairs that can probe states beyond the Standard Model at the MeV scale. In particular, modes like K → π 2(e+e-) have never been measured or considered before and could be used to search for MeV axions, as well as multi-component dark sectors. In particular, the ``17 MeV QCD axion" is robustly tested with these signatures, as it predicts a branching ratio for π0 → 3(e+e-) at the level of 0.1%, much above the double-Dalitz mode.
| arXiv number (if applicable) | https://arxiv.org/abs/2012.02142 |
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Author
Matheus Hostert
(University of Minnesota)
