${{\mathit \eta}}{{\mathit \pi}}$ MODE

INSPIRE   PDGID:
M012M3
VALUE (MeV) EVTS DOCUMENT ID TECN CHG  COMMENT
$\bf{ 1317.7 \pm1.4}$ OUR AVERAGE
$1308$ $\pm9$
BARBERIS
2000H
 450 ${{\mathit p}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit p}_{{{f}}}}{{\mathit \eta}}{{\mathit \pi}^{0}}{{\mathit p}_{{{s}}}}$
$1316$ $\pm9$
BARBERIS
2000H
 450 ${{\mathit p}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \Delta}_{{{f}}}^{++}}{{\mathit \eta}}{{\mathit \pi}^{-}}{{\mathit p}_{{{s}}}}$
$1317$ $\pm1$ $\pm2$
THOMPSON
1997
MPS 18 ${{\mathit \pi}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \eta}}{{\mathit \pi}^{-}}{{\mathit p}}$
$1315$ $\pm5$ $\pm2$ 1
AMSLER
1994D
 CBAR $0.0$ ${{\overline{\mathit p}}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \pi}^{0}}{{\mathit \pi}^{0}}{{\mathit \eta}}$
$1325.1$ $\pm5.1$
AOYAGI
1993
BKEI ${{\mathit \pi}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \eta}}{{\mathit \pi}^{-}}{{\mathit p}}$
$1317.7$ $\pm1.4$ $\pm2.0$
BELADIDZE
1993
VES 37 ${{\mathit \pi}^{-}}$ ${{\mathit N}}$ $\rightarrow$ ${{\mathit \eta}}{{\mathit \pi}^{-}}{{\mathit N}}$
$1323$ $\pm8$ 1000 2
KEY
1973
OSPK - 6 ${{\mathit \pi}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit p}}{{\mathit \pi}^{-}}{{\mathit \eta}}$
• • We do not use the following data for averages, fits, limits, etc. • •
$1307$ $\pm1$ $\pm6$ 3
JACKURA
2018
RVUE ${{\mathit \pi}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \eta}}{{\mathit \pi}^{-}}{{\mathit p}}$
$1315$ $\pm12$ 4
ADOLPH
2015
COMP 191 ${{\mathit \pi}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \eta}^{(')}}{{\mathit \pi}^{-}}{{\mathit p}}$
$1324$ $\pm5$
ARMSTRONG
1993C
 E760 0 ${{\overline{\mathit p}}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \pi}^{0}}{{\mathit \eta}}{{\mathit \eta}}$ $\rightarrow$ 6 ${{\mathit \gamma}}$
$1336.2$ $\pm1.7$ 2561
DELFOSSE
1981
SPEC + ${{\mathit \pi}^{\pm}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit p}}{{\mathit \pi}^{\pm}}{{\mathit \eta}}$
$1330.7$ $\pm2.4$ 1653
DELFOSSE
1981
SPEC - ${{\mathit \pi}^{\pm}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit p}}{{\mathit \pi}^{\pm}}{{\mathit \eta}}$
$1324$ $\pm8$ 6200 2, 5
CONFORTO
1973
OSPK - 6 ${{\mathit \pi}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit p}}$ MM${}^{-}$
1  The systematic error of 2 MeV corresponds to the spread of solutions.
2  Error includes 5 MeV systematic mass-scale error.
3  Superseded by RODAS 2019.
4  ADOLPH 2015 value is derived from a Breit-Wigner fit with mass-dependent width taking the ${{\mathit \eta}}{{\mathit \pi}}$ and ${{\mathit \rho}}{{\mathit \pi}}$ channels into account.
5  Missing mass with enriched MMS = ${{\mathit \eta}}{{\mathit \pi}^{-}}$, ${{\mathit \eta}}$ = 2${{\mathit \gamma}}$.
References