We present a search for the rare leptonic decays $B^+ \to e^+ \nu$ and $B^+ \to \mu^+ \nu$ using the full Upsilong(4S) data sample of 772 × 10^6 BB¯ pairs collected with the Belle detector at the KEKB asymmetric-energy e+e- collider
Keyword
Particle Physics; High Energy Physics; Computational Physics; Large Scale Data