Violation Of The $ΔI = 1/2$ Rule In $D \to ππ$ Decays

Details Violation Of The $ΔI = 1/2$ Rule In $D \to ππ$ Decays Violation Of The $ΔI = 1/2$ Rule In $D \to ππ$ Decays

1993-09-20

arxiv.org/abs/hep-ph/9309295v1

Phys. Lett. B322 (1994) 259-262

Physics

High Energy Physics

High Energy Physics - Phenomenology

Pages 13

Scientific paper

10.1016/0370-2693(94)91117-7

A strong violation of the $\displaystyle{\Delta I = {1\over 2}} $ rule has
experimentally been found in the $\displaystyle{D \to \pi\pi}$ decays [1]. In
this letter we will show that the order of magnitude of this violation can be
understood in terms of the pure quantum chromo dynamics corrections to the weak
interactions.

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