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${{\mathit a}_{{{1}}}{(1640)}}$ WIDTH

INSPIRE   PDGID:

M161W

VALUE (MeV) EVTS DOCUMENT ID TECN  COMMENT $\bf{ 250 \pm40}$ OUR AVERAGE  Error includes scale factor of 1.8.  See the ideogram below. $510$ ${}^{+170}_{-90}$ 46M 1 AGHASYAN 2018 B COMP 190 ${{\mathit \pi}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \pi}^{-}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit p}}$ $171$ $\pm33$ $\pm40$ DARGENT 2017 RVUE ${{\mathit D}^{0}}$ $\rightarrow$ ${{\mathit \pi}^{-}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \pi}^{+}}$ $225$ $\pm30$ 35k 2 BAKER 2003 SPEC ${{\overline{\mathit p}}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \omega}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \pi}^{0}}$ $308$ $\pm37$ $\pm62$ CHUNG 2002 B852 18.3 ${{\mathit \pi}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \pi}^{-}}{{\mathit p}}$ $300$ $\pm22$ $\pm40$ BAKER 1999 SPEC $1.94$ ${{\overline{\mathit p}}}$ ${{\mathit p}}$ $\rightarrow$ 4 ${{\mathit \pi}^{0}}$ • • We do not use the following data for averages, fits, limits, etc. • • $300$ $\pm100$ BELLINI 1985 SPEC 40 ${{\mathit \pi}^{-}}$ ${{\mathit A}}$ $\rightarrow$ ${{\mathit \pi}^{-}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit A}}$ 1  Statistical error negligible. 2  Using the ${{\mathit a}_{{{1}}}{(1260)}}$ mass and width results of BOWLER 1988.

${{\mathit a}_{{{1}}}{(1640)}}$ width (MeV)

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