22-26 October 2018
Hotel Intourist Kolomenskoye 4*
Europe/Moscow timezone

Measurement of K+->$\mu^+\nu_{\mu}\gamma$ decay form factors in OKA experiment

23 Oct 2018, 18:00
Alekseevskiy hall (Hotel Intourist Kolomenskoye 4*)

Alekseevskiy hall

Hotel Intourist Kolomenskoye 4*

Kashyrskoye shosse, 39B, Moscow, Russia, 115409
Plenary/section talk Particle physics Particle Physics


Vladimir Kravtsov


A precise measurement of the vector and axial-vector form factors difference $F_V-F_A$ in the decay $K^+→μ^+ν_μγ$ is presented. About 100K events of $K^+→μ^+ν_μγ$ have been selected in OKA experiment. The result is $F_V-F_A = 0.13 ± 0.02(stat.) ± 0.02(syst.)$. Both errors are two times lower of the first measurement of $F_V-F_A$ in ISTRA experiment. The presented result is considered as preliminary.

Primary author

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