PEN: a sensitive search for non-(V-A) weak processes

PEN Collaboration, D. Pocanic, L. P. Alonzi +26

A new measurement of $B_{\pi e2}$, the ${\pi }^{+}\to e^{+}\nu (\gamma )$ decay branching ratio, is currently under way at the Paul Scherrer Institute. The present experimental result on $B_{\pi e2}$ con…