Non-standard semileptonic hyperon decays

Understand

We investigate the discovery potential of semileptonic hyperon decays in terms of searches of new physics at teraelectronvolt scales.

• These decays are controlled by a small $SU(3)$-flavor breaking parameter that allows for systematic expansions and accurate predictions in terms of a reduced dependence on hadronic form factors.
• We find that muonic modes are very sensitive to non-standard scalar and tensor contributions and demonstrate that these could provide a powerful synergy with direct searches of new physics at the LHC.