Speaker
Description
Measurements of the T-odd correlation in the K+ --> e^{+} nu pi^{0} gamma radiative
decay are performed at the "OKA" detector exposed to 18 GeV/c RF separated beam of
the U-70 PS. About 100K events of the decay are selected with a background of 15%.
The measured correlation ksi is a mixed product of the e^{+}, pi^{0} and gamma
momenta in the kaon rest frame, normalised to M_{K}^{3}. For the estimate of the T-
odd asymmetry a variable A_ksi = N_{+}-N_{-} / N_{+}+N_{-}, where N_{+-} is the
number of events with ksi > (<) 0 is used . The measurement of the asymmetry gives:
A_ksi = ( -2.1 +- 4.3 (stat) +- 1.1 (syst) ) x 10^(-3), or | A_ksi |< 7.8 x 10^{-3}
at 90% C.L.