${{\mathit \pi}^{\pm}}$ FORM FACTORS

$\mathit R$, SECOND AXIAL-VECTOR FORM FACTOR

INSPIRE   PDGID:
S008FR
VALUE EVTS DOCUMENT ID TECN  COMMENT
$0.059$ ${}^{+0.009}_{-0.008}$ 98
EGLI
1989
SPEC ${{\mathit \pi}^{+}}$ $\rightarrow$ ${{\mathit e}^{+}}{{\mathit \nu}_{{{e}}}}{{\mathit e}^{+}}{{\mathit e}^{-}}$
References