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Rare K-Decays as Crucial Tests for Unified Models with Gauged Baryon Number:

Palash B. Pal
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Abstract

In the grand-unified models based on SU(15) and SU(16) in which the quarks and leptons are un-unified at the intermediate stages, we show that ${\rm BR}\; (K_L \to μe) \leq 10^{-14}$ and ${\rm BR}\; (K^+ \to π^+μe) \leq 10^{-14}$ despite the presence of leptoquark gauge bosons. Thus, the observation of these processes in the ongoing or upcoming experiments will rule out the models.

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Palash B. Pal. 1993-01-22. Rare K-Decays as Crucial Tests for Unified Models with Gauged Baryon Number:. https://doi.org/10.1016/0370-2693(93)90548-v

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