${{\mathit f}_{{{0}}}{(980)}}$ MASS

INSPIRE   PDGID:
M003M1
VALUE (MeV) EVTS DOCUMENT ID TECN  COMMENT
$\bf{ 990 \pm20}$ OUR ESTIMATE
• • We do not use the following data for averages, fits, limits, etc. • •
$992.0$ ${}^{+8.5}_{-7.5}$ $\pm8.6$ 1
AAIJ
2019H
LHCB ${{\mathit p}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit D}^{\pm}}{{\mathit X}}$
$989.4$ $\pm1.3$ 424
ABLIKIM
2015P
BES3 ${{\mathit J / \psi}}$ $\rightarrow$ ${{\mathit K}^{+}}{{\mathit K}^{-}}$3 ${{\mathit \pi}}$
$989.9$ $\pm0.4$ 706
ABLIKIM
2012E
BES3 ${{\mathit J / \psi}}$ $\rightarrow$ ${{\mathit \gamma}}$3 ${{\mathit \pi}}$
$977$ ${}^{+11}_{-9}$ $\pm1$ 44 2
ECKLUND
2009
CLEO 4.17 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit D}_{{{s}}}^{-}}{{\mathit D}_{{{s}}}^{*+}}$ + c.c.
$982.2$ $\pm1.0$ ${}^{+8.1}_{-8.0}$ 3
UEHARA
2008A
BELL 10.6 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit e}^{+}}{{\mathit e}^{-}}{{\mathit \pi}^{0}}{{\mathit \pi}^{0}}$
$976.8$ $\pm0.3$ ${}^{+10.1}_{-0.6}$ 64k 4
AMBROSINO
2007
KLOE 1.02 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \pi}^{0}}{{\mathit \pi}^{0}}{{\mathit \gamma}}$
$984.7$ $\pm0.4$ ${}^{+2.4}_{-3.7}$ 64k 5
AMBROSINO
2007
KLOE 1.02 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \pi}^{0}}{{\mathit \pi}^{0}}{{\mathit \gamma}}$
$973$ $\pm3$ $262$ $\pm30$ 6
AUBERT
2007AK
BABR 10.6 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \phi}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \gamma}}$
$970$ $\pm7$ $54$ $\pm9$ 6
AUBERT
2007AK
BABR 10.6 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \phi}}{{\mathit \pi}^{0}}{{\mathit \pi}^{0}}{{\mathit \gamma}}$
$953$ $\pm20$ 2.6k 7
BONVICINI
2007
CLEO ${{\mathit D}^{+}}$ $\rightarrow$ ${{\mathit \pi}^{-}}{{\mathit \pi}^{+}}{{\mathit \pi}^{+}}$
$985.6$ ${}^{+1.2}_{-1.5}$ ${}^{+1.1}_{-1.6}$ 8
MORI
2007
BELL 10.6 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit e}^{+}}{{\mathit e}^{-}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$
$983.0$ $\pm0.6$ ${}^{+4.0}_{-3.0}$ 9
AMBROSINO
2006B
KLOE 1.02 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \gamma}}$
$977.3$ $\pm0.9$ ${}^{+3.7}_{-4.3}$ 10
AMBROSINO
2006B
KLOE 1.02 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \gamma}}$
$950$ $\pm9$ 4286 11
GARMASH
2006
BELL ${{\mathit B}^{+}}$ $\rightarrow$ ${{\mathit K}^{+}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$
$965$ $\pm10$ 12
ABLIKIM
2005
BES2 ${{\mathit J / \psi}}$ $\rightarrow$ ${{\mathit \phi}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$, ${{\mathit \phi}}{{\mathit K}^{+}}{{\mathit K}^{-}}$
$1031$ $\pm8$ 13
ANISOVICH
2003
RVUE
$1037$ $\pm31$
TIKHOMIROV
2003
SPEC 40.0 ${{\mathit \pi}^{-}}$ ${}^{}\mathrm {C}$ $\rightarrow$ ${{\mathit K}_S^0}$ ${{\mathit K}_S^0}$ ${{\mathit K}_L^0}$ X
$973$ $\pm1$ 2438 14
ALOISIO
2002D
KLOE ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \pi}^{0}}{{\mathit \pi}^{0}}{{\mathit \gamma}}$
$977$ $\pm3$ $\pm2$ 848 15
AITALA
2001A
E791 ${{\mathit D}_{{{s}}}^{+}}$ $\rightarrow$ ${{\mathit \pi}^{-}}{{\mathit \pi}^{+}}{{\mathit \pi}^{+}}$
$969.8$ $\pm4.5$ 419 16
ACHASOV
2000H
SND ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \pi}^{0}}{{\mathit \pi}^{0}}{{\mathit \gamma}}$
$985$ ${}^{+16}_{-12}$ 419 17, 18
ACHASOV
2000H
SND ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \pi}^{0}}{{\mathit \pi}^{0}}{{\mathit \gamma}}$
$976$ $\pm5$ $\pm6$ 19
AKHMETSHIN
1999B
CMD2 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \gamma}}$
$977$ $\pm3$ $\pm6$ 268 19
AKHMETSHIN
1999C
CMD2 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \pi}^{0}}{{\mathit \pi}^{0}}{{\mathit \gamma}}$
$975$ $\pm4$ $\pm6$ 20
AKHMETSHIN
1999C
CMD2 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \pi}^{0}}{{\mathit \pi}^{0}}{{\mathit \gamma}}$
$975$ $\pm4$ $\pm6$ 21
AKHMETSHIN
1999C
CMD2 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \gamma}}$, ${{\mathit \pi}^{0}}{{\mathit \pi}^{0}}{{\mathit \gamma}}$
$985$ $\pm10$
BARBERIS
1999
OMEG 450 ${{\mathit p}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit p}_{{{s}}}}{{\mathit p}_{{{f}}}}{{\mathit K}^{+}}{{\mathit K}^{-}}$
$982$ $\pm3$
BARBERIS
1999B
OMEG 450 ${{\mathit p}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit p}_{{{s}}}}{{\mathit p}_{{{f}}}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$
$982$ $\pm3$
BARBERIS
1999C
OMEG 450 ${{\mathit p}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit p}_{{{s}}}}{{\mathit p}_{{{f}}}}{{\mathit \pi}^{0}}{{\mathit \pi}^{0}}$
$987$ $\pm6$ $\pm6$ 22
BARBERIS
1999D
OMEG 450 ${{\mathit p}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit K}^{+}}{{\mathit K}^{-}}$, ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$
$989$ $\pm15$
BELLAZZINI
1999
GAM4 450 ${{\mathit p}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit p}}{{\mathit p}}{{\mathit \pi}^{0}}{{\mathit \pi}^{0}}$
$991$ $\pm3$ 23
KAMINSKI
1999
RVUE ${{\mathit \pi}}$ ${{\mathit \pi}}$ $\rightarrow$ ${{\mathit \pi}}{{\mathit \pi}}$, ${{\mathit K}}{{\overline{\mathit K}}}$, ${{\mathit \sigma}}{{\mathit \sigma}}$
$\sim{}\text{ 980}$ 23
OLLER
1999
RVUE ${{\mathit \pi}}$ ${{\mathit \pi}}$ $\rightarrow$ ${{\mathit \pi}}{{\mathit \pi}}$, ${{\mathit K}}{{\overline{\mathit K}}}$
$\sim{}\text{ 993.5}$
OLLER
1999B
RVUE ${{\mathit \pi}}$ ${{\mathit \pi}}$ $\rightarrow$ ${{\mathit \pi}}{{\mathit \pi}}$, ${{\mathit K}}{{\overline{\mathit K}}}$
$\sim{}\text{ 987}$ 23
OLLER
1999C
RVUE ${{\mathit \pi}}$ ${{\mathit \pi}}$ $\rightarrow$ ${{\mathit \pi}}{{\mathit \pi}}$, ${{\mathit K}}{{\overline{\mathit K}}}$, ${{\mathit \eta}}{{\mathit \eta}}$
$957$ $\pm6$ 24
ACKERSTAFF
1998Q
OPAL ${{\mathit Z}}$ $\rightarrow$ ${{\mathit f}_{{{0}}}}$ X
$960$ $\pm10$
ALDE
1998
GAM4
$1015$ $\pm15$ 23
ANISOVICH
1998B
RVUE Compilation
$1008$ 25
LOCHER
1998
RVUE ${{\mathit \pi}}$ ${{\mathit \pi}}$ $\rightarrow$ ${{\mathit \pi}}{{\mathit \pi}}$ , ${{\mathit K}}{{\overline{\mathit K}}}$
$955$ $\pm10$ 24
ALDE
1997
GAM2 450 ${{\mathit p}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit p}}{{\mathit p}}{{\mathit \pi}^{0}}{{\mathit \pi}^{0}}$
$994$ $\pm9$ 26
BERTIN
1997C
OBLX 0.0 ${{\overline{\mathit p}}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \pi}^{0}}$
$993.2$ $\pm6.5$ $\pm6.9$ 27
ISHIDA
1996
RVUE ${{\mathit \pi}}$ ${{\mathit \pi}}$ $\rightarrow$ ${{\mathit \pi}}{{\mathit \pi}}$, ${{\mathit K}}{{\overline{\mathit K}}}$
$1006$
TORNQVIST
1996
RVUE ${{\mathit \pi}}$ ${{\mathit \pi}}$ $\rightarrow$ ${{\mathit \pi}}{{\mathit \pi}}$, ${{\mathit K}}{{\overline{\mathit K}}}$, ${{\mathit K}}{{\mathit \pi}}$, ${{\mathit \eta}}{{\mathit \pi}}$
$997$ $\pm5$ 3k 28
ALDE
1995B
GAM2 38 ${{\mathit \pi}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \pi}^{0}}{{\mathit \pi}^{0}}{{\mathit n}}$
$960$ $\pm10$ 10k 29
ALDE
1995B
GAM2 38 ${{\mathit \pi}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \pi}^{0}}{{\mathit \pi}^{0}}{{\mathit n}}$
$994$ $\pm5$
AMSLER
1995B
CBAR $0.0$ ${{\overline{\mathit p}}}$ ${{\mathit p}}$ $\rightarrow$ 3 ${{\mathit \pi}^{0}}$
$\sim{}\text{ 996}$ 30
AMSLER
1995D
CBAR 0.0 ${{\overline{\mathit p}}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \pi}^{0}}{{\mathit \pi}^{0}}{{\mathit \pi}^{0}}$, ${{\mathit \pi}^{0}}{{\mathit \eta}}{{\mathit \eta}}$, ${{\mathit \pi}^{0}}{{\mathit \pi}^{0}}{{\mathit \eta}}$
$987$ $\pm6$ 31
ANISOVICH
1995
RVUE
$1015$
JANSSEN
1995
RVUE ${{\mathit \pi}}$ ${{\mathit \pi}}$ $\rightarrow$ ${{\mathit \pi}}{{\mathit \pi}}$, ${{\mathit K}}{{\overline{\mathit K}}}$
$983$ 32
BUGG
1994
RVUE ${{\overline{\mathit p}}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \eta}}$2 ${{\mathit \pi}^{0}}$
$973$ $\pm2$ 33
KAMINSKI
1994
RVUE ${{\mathit \pi}}$ ${{\mathit \pi}}$ $\rightarrow$ ${{\mathit \pi}}{{\mathit \pi}}$, ${{\mathit K}}{{\overline{\mathit K}}}$
$988$ 34
ZOU
1994B
RVUE
$988$ $\pm10$ 35
MORGAN
1993
RVUE ${{\mathit \pi}}$ ${{\mathit \pi}}$ ${{\mathit K}}$ ${{\overline{\mathit K}}}$ $\rightarrow$ ${{\mathit \pi}}{{\mathit \pi}}$( ${{\mathit K}}{{\overline{\mathit K}}}$), ${{\mathit J / \psi}}$ $\rightarrow$ ${{\mathit \phi}}{{\mathit \pi}}{{\mathit \pi}}$( ${{\mathit K}}{{\overline{\mathit K}}}$), ${{\mathit D}_{{{s}}}}$ $\rightarrow$ ${{\mathit \pi}}$( ${{\mathit \pi}}{{\mathit \pi}}$)
$971.1$ $\pm4.0$ 24
AGUILAR-BENIT..
1991
EHS 400 ${{\mathit p}}{{\mathit p}}$
$979$ $\pm4$ 36
ARMSTRONG
1991
OMEG 300 ${{\mathit p}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit p}}{{\mathit p}}{{\mathit \pi}}{{\mathit \pi}}$ , ${{\mathit p}}{{\mathit p}}{{\mathit K}}{{\overline{\mathit K}}}$
$956$ $\pm12$
BREAKSTONE
1990
SFM ${{\mathit p}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit p}}{{\mathit p}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$
$959.4$ $\pm6.5$ 24
AUGUSTIN
1989
DM2 ${{\mathit J / \psi}}$ $\rightarrow$ ${{\mathit \omega}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$
$978$ $\pm9$ 24
ABACHI
1986B
HRS ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ X
$985.0$ ${}^{+9.0}_{-39.0}$
ETKIN
1982B
MPS 23 ${{\mathit \pi}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit n}}$2 ${{\mathit K}_S^0}$
$974$ $\pm4$ 36
GIDAL
1981
MRK2 ${{\mathit J / \psi}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ X
$975$ 37
ACHASOV
1980
RVUE
$986$ $\pm10$ 36
AGUILAR-BENIT..
1978
HBC 0.7 ${{\overline{\mathit p}}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit K}_S^0}$ ${{\mathit K}_S^0}$
$969$ $\pm5$ 36
LEEPER
1977
ASPK 2$-$2.4 ${{\mathit \pi}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit n}}$ , ${{\mathit K}^{+}}{{\mathit K}^{-}}{{\mathit n}}$
$987$ $\pm7$ 36
BINNIE
1973
CNTR ${{\mathit \pi}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit n}}$ MM
$1012$ $\pm6$ 38
GRAYER
1973
ASPK 17 ${{\mathit \pi}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit n}}$
$1007$ $\pm20$ 38
HYAMS
1973
ASPK 17 ${{\mathit \pi}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit n}}$
$997$ $\pm6$ 38
PROTOPOPESCU
1973
HBC 7 ${{\mathit \pi}^{+}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit p}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$
1  From the ${{\mathit D}^{\pm}}$ $\rightarrow$ ${{\mathit K}^{\pm}}{{\mathit K}^{+}}{{\mathit K}^{-}}$ Dalitz plot fit with the Triple-M amplitude in the multimeson model of AOUDE 2018.
2  Using a relativistic Breit-Wigner function and taking into account the finite ${{\mathit D}_{{{s}}}}$ mass.
3  Breit-Wigner mass. Using finite width corrections according to FLATTE 1976 and ACHASOV 2005, and the ratio $\mathit g_{{{\mathit f}_{{{0}}}} {{\mathit K}} {{\mathit K}}}/\mathit g_{{{\mathit f}_{{{0}}}} {{\mathit \pi}} {{\mathit \pi}}}$ = 0.
4  In the kaon-loop fit.
5  In the no-structure fit.
6  Systematic errors not estimated.
7  FLATTE 1976 parameterization. g$_{{{\mathit f}_{{{0}}}} {{\mathit \pi}} {{\mathit \pi}}}$ = $329$ $\pm96$ MeV/c${}^{2}$ assuming g$_{{{\mathit f}_{{{0}}}} {{\mathit K}} {{\overline{\mathit K}}}}$/g$_{{{\mathit f}_{{{0}}}} {{\mathit \pi}} {{\mathit \pi}}}$=2.
8  Breit-Wigner mass. Using finite width corrections according to FLATTE 1976 and ACHASOV 2005, and the ratio $\mathit g_{{{\mathit f}_{{{0}}}} {{\mathit K}} {{\mathit K}}}/\mathit g_{{{\mathit f}_{{{0}}}} {{\mathit \pi}} {{\mathit \pi}}}$ = $4.21$ $\pm0.25$ $\pm0.21$ from ABLIKIM 2005.
9  In the kaon-loop fit following formalism of ACHASOV 1989.
10  In the no-structure fit assuming a direct coupling of ${{\mathit \phi}}$ to ${{\mathit f}_{{{0}}}}{{\mathit \gamma}}$.
11  FLATTE 1976 parameterization. Supersedes GARMASH 2005.
12  FLATTE 1976 parameterization, $\mathit g_{{{\mathit f}_{{{0}}}} {{\mathit K}} {{\overline{\mathit K}}}}/\mathit g_{{{\mathit f}_{{{0}}}} {{\mathit \pi}} {{\mathit \pi}}}$ = $4.21$ $\pm0.25$ $\pm0.21$.
13  K-matrix pole from combined analysis of ${{\mathit \pi}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \pi}^{0}}{{\mathit \pi}^{0}}{{\mathit n}}$, ${{\mathit \pi}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit K}}{{\overline{\mathit K}}}{{\mathit n}}$, ${{\mathit \pi}^{+}}$ ${{\mathit \pi}^{-}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$, ${{\overline{\mathit p}}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \pi}^{0}}{{\mathit \pi}^{0}}{{\mathit \pi}^{0}}$, ${{\mathit \pi}^{0}}{{\mathit \eta}}{{\mathit \eta}}$, ${{\mathit \pi}^{0}}{{\mathit \pi}^{0}}{{\mathit \eta}}$, ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \pi}^{0}}$, ${{\mathit K}^{+}}{{\mathit K}^{-}}{{\mathit \pi}^{0}}$, ${{\mathit K}_S^0}$ ${{\mathit K}_S^0}$ ${{\mathit \pi}^{0}}$, ${{\mathit K}^{+}}{{\mathit K}_S^0}$ ${{\mathit \pi}^{-}}$ at rest, ${{\overline{\mathit p}}}$ ${{\mathit n}}$ $\rightarrow$ ${{\mathit \pi}^{-}}{{\mathit \pi}^{-}}{{\mathit \pi}^{+}}$, ${{\mathit K}_S^0}$ ${{\mathit K}^{-}}{{\mathit \pi}^{0}}$, ${{\mathit K}_S^0}$ ${{\mathit K}_S^0}$ ${{\mathit \pi}^{-}}$ at rest.
14  From the negative interference with the ${{\mathit f}_{{{0}}}{(500)}}$ meson of AITALA 2001B using the ACHASOV 1989 parameterization for the ${{\mathit f}_{{{0}}}{(980)}}$, a Breit-Wigner for the ${{\mathit f}_{{{0}}}{(500)}}$, and ACHASOV 2001F for the ${{\mathit \rho}}{{\mathit \pi}}$ contribution.
15  Coupled-channel Breit-Wigner, couplings $\mathit g_{{{\mathit \pi}}}=0.09$ $\pm0.01$ $\pm0.01$, $\mathit g_{{{\mathit K}}}=0.02$ $\pm0.04$ $\pm0.03$.
16  Supersedes ACHASOV 1998I. Using the model of ACHASOV 1989.
17  Supersedes ACHASOV 1998I.
18  In the ``narrow resonance'' approximation.
19  Assuming $\Gamma\mathrm {({{\mathit f}_{{{0}}}})}$= 40 MeV.
20  From a narrow pole fit taking into account ${{\mathit f}_{{{0}}}{(980)}}$ and ${{\mathit f}_{{{0}}}{(1200)}}$ intermediate mechanisms.
21  From the combined fit of the photon spectra in the reactions ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \gamma}}$, ${{\mathit \pi}^{0}}{{\mathit \pi}^{0}}{{\mathit \gamma}}$.
22  Supersedes BARBERIS 1999 and BARBERIS 1999B
23  T-matrix pole.
24  From invariant mass fit.
25  On sheet II in a 2 pole solution. The other pole is found on sheet$~$III at (1039$−93\mathit i$) MeV.
26  On sheet II in a 2 pole solution. The other pole is found on sheet III at (963-29i) MeV.
27  Reanalysis of data from HYAMS 1973, GRAYER 1974, SRINIVASAN 1975, and ROSSELET 1977 using the interfering amplitude method.
28  At high $\vert {{\mathit t}}\vert $.
29  At low $\vert {{\mathit t}}\vert $.
30  On sheet II in a 4-pole solution, the other poles are found on sheet$~$III at (953$−55\mathit i$) MeV and on sheet$~$IV at (938$−35\mathit i$) MeV.
31  Combined fit of ALDE 1995B, ANISOVICH 1994, AMSLER 1994D.
32  On sheet II in a 2 pole solution. The other pole is found on sheet$~$III at (996$-103\mathit i$) MeV.
33  From sheet II pole position.
34  On sheet II in a 2 pole solution. The other pole is found on sheet$~$III at (797$-185\mathit i$) MeV and can be interpreted as a shadow pole.
35  On sheet II in a 2 pole solution. The other pole is found on sheet$~$III at (978$-28\mathit i$) MeV.
36  From coupled channel analysis.
37  Coupled channel analysis with finite width corrections.
38  Included in AGUILAR-BENITEZ 1978 fit.
References