Kl3 and πe3 decays in terms of the Kemmer β current
No Thumbnail Available
Files
Date
1973
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
Abstract
It is shown with the help of the pion-gauge condition that the divergence of the most general boson current in
K
l
3
decay vanishes in the limit of zero four-momentum of the pion. This in turn implies
ξ
=
−
1
at the (unphysical) point
t
=
m
2
K
. Inasmuch as
ξ
does not seem, experimentally, to vary much with
t
, the result is significant in the physical region and agrees with experiment