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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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If no 
or 
NWI exist,
then the only 
baryon decays in which NWI effects might be visible are
and possibly
The decay (7.1) has been discussed in ref. [35], where a value of 
is obtained for the 
polarization in
the Weinberg-Salam model. This could be increased by about an order of magnitude in non-vector theories.
The energy spectrum [37] of 
is
given in fig. 8 and
This yields 
and perhaps 
in the Weinberg-Salam model, more than that expected for 
.
in the Weinberg-Salam model.Experimentally, the process
could be searched for. 
and 
could be important backgrounds. Thus the 
and 
invariant masses would have to be
determined to check that the decaying particle was a 
.
Since the 
relative parity is even, the photon in must be M1, if the process is purely electromagnetic. However, various Z and W tadpole
diagrams serve to admix a small E1 component into this, which could well be 
. Better theoretical knowledge of the 
electromagnetic form factor might allow a measurement of such an effect by observing pair production from the photon [38].
