Vm. Artemov et al., DETERMINATION OF FORM-FACTOR PARAMETERS LAMBDA(-MU-3 DECAY() AND LAMBDA(0) IN K), Physics of atomic nuclei, 60(2), 1997, pp. 218-223
About three thousand events of the decay K- --> mu(-)nu pi(0) from the
ISTRA-M setup (U-70, Protvino) are analyzed. In the V-A theory and th
e Linear approximation in the form factors, this analysis yields lambd
a(+) = 0.029+/- 0.024 and lambda(0) = 0.062+/-0.024. The results are c
ompared with some theoretical predictions.