A measurement of the decay K+→π0μ+νμ γ has been performed with the E787 detector at Brookhaven National Laboratory. Forty events were observed in the signal region with the background expectation of (16.5±2.7) events. The branching ratio was measured to be (1.58±0.46(stat.)±0.08(syst.))×10-5 in the kinematic region Eγ>30MeV and θμγ>20°, where Eγ is the energy of the emitted photon and θμγ is the angle between the muon and the photon in the K+ rest frame. The results were consistent with theoretical predictions.
|Journal||Physical Review D - Particles, Fields, Gravitation and Cosmology|
|Publication status||Published - 2010 May 3|
ASJC Scopus subject areas
- Nuclear and High Energy Physics
- Physics and Astronomy (miscellaneous)