Does the proton decay to an antineutrino and a kaon?
In plain words
Supersymmetric unified theories favor a different decay of the proton, into an antineutrino and a charged kaon. Detecting the kaon needs detectors with good tracking.
Precise statement
Measure or bound $\tau(p \to \mathrm{anti}-\nu K+)/B$, currently $> \sim 5.9 \times 10^{33}\,\mathrm{yr}$ (Super-Kamiokande, 2014). Minimal SUSY $\mathrm{SU}(5)$ with dimension-5 operators predicts values near or below this; an answer is a detection or a limit $\sim 10^{34}\text{ to }10^{35}\,\mathrm{yr}$.
What would settle it
DUNE liquid-argon tracking, Hyper-Kamiokande and JUNO searches for p -> anti-nu K+.
Parent problems
- Special case of Do the SM gauge forces unify into a single group? · open · from revision 1 The parent was revised since revision 1: it now states another question.
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