${{\mathit a}_{{1}}{(1260)}}$ T-MATRIX POLE $\sqrt {\mathit s }$

INSPIRE   PDGID:
M010PP
Note that $\Gamma \approx{}$2 Im($\sqrt {s }$).
VALUE (MeV) DOCUMENT ID TECN  COMMENT
$\bf{ (1209 \pm4 {}^{+12}_{-9})−{\mit i}(288 \pm6 {}^{+45}_{-10})}$ OUR ESTIMATE
$(1209 \pm4 {}^{+12}_{-9}) − {\mit i} (288 \pm6 {}^{+45}_{-10})$
MIKHASENKO
2018
RVUE ${{\mathit \tau}^{-}}$ $\rightarrow$ ${{\mathit \pi}^{-}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \nu}_{{\tau}}}$
References:
MIKHASENKO 2018
PR D98 096021 Pole position of the $a_1(1260)$ from $\tau$-decay