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Articles Particle Physics Neutral Weak Interactions and Particle Decays (1976)
Neutral Weak Interactions and Particle Decays (1976) |
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In any SU
scheme, if the only internal quantum number which NWI can
change is isospin, then there will be no decays involving single charged mesons which proceed purely by NWI. It is,
however, by no means proven that 
(
denotes charm) in NWI. We discuss some implications of 
NWI in subsect. 6.4. There can, of course, be NWI parts in various charged-current
decays: these are considered in subsect. 6.3.
Probably the most promising pseudoscalar meson decays in which to detect NWI are those of 
and 
. We list the experimentally more
accessible of these, together with experimental limits on their branching ratios, and the sections in which we shall
discuss them: (P denotes or and 
or 
.
The decays of 
and 
could also furnish information on NWI, but we do not expect production of sufficient numbers of these in the
foreseeable future to allow measurements of rare decay modes, and so we do not consider them in detail.
NWI effects might also be detectable in 
(see subsect. 6.1) and
in
hadrons (see subsect. 6.4). The production reactions 
could also be helpful. These we discuss in subsect. 3.5.
