pdgLive

OMEG

450 ${{\mathit p}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit p}_{{s}}}{{\mathit p}_{{f}}}{{\mathit K}^{+}}{{\mathit K}^{-}}$

$982$ $\pm3$

OMEG

450 ${{\mathit p}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit p}_{{s}}}{{\mathit p}_{{f}}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$

$982$ $\pm3$

OMEG

450 ${{\mathit p}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit p}_{{s}}}{{\mathit p}_{{f}}}{{\mathit \pi}^{0}}{{\mathit \pi}^{0}}$

$987$ $\pm6$ $\pm6$

²⁷

OMEG

450 ${{\mathit p}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit K}^{+}}{{\mathit K}^{-}}$ , ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$

$989$ $\pm15$

BELLAZZINI

GAM4

450 ${{\mathit p}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit p}}{{\mathit p}}{{\mathit \pi}^{0}}{{\mathit \pi}^{0}}$

$991$ $\pm3$

²⁸

RVUE

${{\mathit \pi}}$ ${{\mathit \pi}}$ $\rightarrow$ ${{\mathit \pi}}{{\mathit \pi}}$ , ${{\mathit K}}{{\overline{\mathit K}}}$ , ${{\mathit \sigma}}{{\mathit \sigma}}$

$\sim{}\text{ 980}$

²⁸

RVUE

${{\mathit \pi}}$ ${{\mathit \pi}}$ $\rightarrow$ ${{\mathit \pi}}{{\mathit \pi}}$ , ${{\mathit K}}{{\overline{\mathit K}}}$

$\sim{}\text{ 993.5}$

RVUE

${{\mathit \pi}}$ ${{\mathit \pi}}$ $\rightarrow$ ${{\mathit \pi}}{{\mathit \pi}}$ , ${{\mathit K}}{{\overline{\mathit K}}}$

$\sim{}\text{ 987}$

²⁸

RVUE

${{\mathit \pi}}$ ${{\mathit \pi}}$ $\rightarrow$ ${{\mathit \pi}}{{\mathit \pi}}$ , ${{\mathit K}}{{\overline{\mathit K}}}$ , ${{\mathit \eta}}{{\mathit \eta}}$

$957$ $\pm6$

²⁹

ACKERSTAFF

OPAL

${{\mathit Z}}$ $\rightarrow$ ${{\mathit f}_{{0}}}$ X

$960$ $\pm10$

GAM4

$1015$ $\pm15$

²⁸

RVUE

Compilation

$1008$

³⁰

LOCHER

RVUE

${{\mathit \pi}}$ ${{\mathit \pi}}$ $\rightarrow$ ${{\mathit \pi}}{{\mathit \pi}}$ , ${{\mathit K}}{{\overline{\mathit K}}}$

$955$ $\pm10$

²⁹

1997

GAM2

450 ${{\mathit p}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit p}}{{\mathit p}}{{\mathit \pi}^{0}}{{\mathit \pi}^{0}}$

$994$ $\pm9$

³¹

BERTIN

1997

OBLX

0.0 ${{\overline{\mathit p}}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \pi}^{0}}$

$993.2$ $\pm6.5$ $\pm6.9$

³²

ISHIDA

RVUE

${{\mathit \pi}}$ ${{\mathit \pi}}$ $\rightarrow$ ${{\mathit \pi}}{{\mathit \pi}}$ , ${{\mathit K}}{{\overline{\mathit K}}}$

$1006$

TORNQVIST

RVUE

${{\mathit \pi}}$ ${{\mathit \pi}}$ $\rightarrow$ ${{\mathit \pi}}{{\mathit \pi}}$ , ${{\mathit K}}{{\overline{\mathit K}}}$ , ${{\mathit K}}{{\mathit \pi}}$ , ${{\mathit \eta}}{{\mathit \pi}}$

$997$ $\pm5$

³³

GAM2

38 ${{\mathit \pi}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \pi}^{0}}{{\mathit \pi}^{0}}{{\mathit n}}$

$960$ $\pm10$

10k

³⁴

GAM2

38 ${{\mathit \pi}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \pi}^{0}}{{\mathit \pi}^{0}}{{\mathit n}}$

$994$ $\pm5$

CBAR

$0.0$ ${{\overline{\mathit p}}}$ ${{\mathit p}}$ $\rightarrow$ 3 ${{\mathit \pi}^{0}}$

$\sim{}\text{ 996}$

³⁵

CBAR

0.0 ${{\overline{\mathit p}}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \pi}^{0}}{{\mathit \pi}^{0}}{{\mathit \pi}^{0}}$ , ${{\mathit \pi}^{0}}{{\mathit \eta}}{{\mathit \eta}}$ , ${{\mathit \pi}^{0}}{{\mathit \pi}^{0}}{{\mathit \eta}}$

$987$ $\pm6$

³⁶

RVUE

$1015$

JANSSEN

RVUE

${{\mathit \pi}}$ ${{\mathit \pi}}$ $\rightarrow$ ${{\mathit \pi}}{{\mathit \pi}}$ , ${{\mathit K}}{{\overline{\mathit K}}}$

$983$

³⁷

BUGG

RVUE

${{\overline{\mathit p}}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \eta}}$2 ${{\mathit \pi}^{0}}$

$973$ $\pm2$

³⁸

RVUE

${{\mathit \pi}}$ ${{\mathit \pi}}$ $\rightarrow$ ${{\mathit \pi}}{{\mathit \pi}}$ , ${{\mathit K}}{{\overline{\mathit K}}}$

$988$

³⁹

ZOU

RVUE

$988$ $\pm10$

⁴⁰

MORGAN

1993

RVUE

${{\mathit \pi}}$ ${{\mathit \pi}}$ ${{\mathit K}}$ ${{\overline{\mathit K}}}$ $\rightarrow$ ${{\mathit \pi}}{{\mathit \pi}}$( ${{\mathit K}}{{\overline{\mathit K}}}$), ${{\mathit J / \psi}}$ $\rightarrow$ ${{\mathit \phi}}{{\mathit \pi}}{{\mathit \pi}}$( ${{\mathit K}}{{\overline{\mathit K}}}$), ${{\mathit D}_{{s}}}$ $\rightarrow$ ${{\mathit \pi}}$( ${{\mathit \pi}}{{\mathit \pi}}$)

$971.1$ $\pm4.0$

²⁹

AGUILAR-BENIT..

EHS

400 ${{\mathit p}}{{\mathit p}}$

$979$ $\pm4$

⁴¹

ARMSTRONG

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

${{\mathit p}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit p}}{{\mathit p}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$

$959.4$ $\pm6.5$

²⁹

AUGUSTIN

1989

DM2

${{\mathit J / \psi}}$ $\rightarrow$ ${{\mathit \omega}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$

$978$ $\pm9$

²⁹

ABACHI

1986

HRS

${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ X

$985.0$ ${}^{+9.0}_{-39.0}$

ETKIN

1982

MPS

23 ${{\mathit \pi}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit n}}$2 ${{\mathit K}_S^0}$

$974$ $\pm4$

⁴¹

GIDAL

1981

MRK2

${{\mathit J / \psi}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ X

$975$

⁴²

ACHASOV

1980

RVUE

$986$ $\pm10$

⁴¹

AGUILAR-BENIT..

1978

HBC

0.7 ${{\overline{\mathit p}}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit K}_S^0}$ ${{\mathit K}_S^0}$

$969$ $\pm5$

⁴¹

LEEPER

1977

ASPK

2$-$2.4 ${{\mathit \pi}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit n}}$ , ${{\mathit K}^{+}}{{\mathit K}^{-}}{{\mathit n}}$

$987$ $\pm7$

⁴¹

BINNIE

CNTR

${{\mathit \pi}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit n}}$ MM

$1012$ $\pm6$

⁴³

GRAYER

ASPK

17 ${{\mathit \pi}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit n}}$

$1007$ $\pm20$

⁴³

HYAMS

ASPK

17 ${{\mathit \pi}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit n}}$

$997$ $\pm6$

⁴³

PROTOPOPESCU

HBC

7 ${{\mathit \pi}^{+}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit p}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$

¹ Quoted number refers to real part of pole position.

² Analytic continuation using Roy equations. Uses the ${{\mathit K}_{{e4}}}$ data of BATLEY 2010C and the ${{\mathit \pi}}$ ${{\mathit N}}$ $\rightarrow$ ${{\mathit \pi}}{{\mathit \pi}}{{\mathit N}}$ data of HYAMS 1973 , GRAYER 1974 , and PROTOPOPESCU 1973 .

³ Analytic continuation using GKPY equations. Uses the ${{\mathit K}_{{e4}}}$ data of BATLEY 2010C and the ${{\mathit \pi}}$ ${{\mathit N}}$ $\rightarrow$ ${{\mathit \pi}}{{\mathit \pi}}{{\mathit N}}$ data of HYAMS 1973 , GRAYER 1974 , and PROTOPOPESCU 1973 .

⁴ Pole position. Used Roy equations.

⁵ Average of the analyses of three data sets in the K-matrix model. Uses the data of BATLEY 2008A, HYAMS 1973 , and GRAYER 1974 , partially of COHEN 1980 or ETKIN 1982B.

⁶ On sheet II in a 2-pole solution. The other pole is found on sheet III at (850$−100\mathit i$) MeV

⁷ Using a relativistic Breit-Wigner function and taking into account the finite ${{\mathit D}_{{s}}}$ mass.

⁸ Breit-Wigner mass. Using finite width corrections according to FLATTE 1976 and ACHASOV 2005 , and the ratio $\mathit g_{ {{\mathit f}_{{0}}} {{\mathit K}} {{\mathit K}} }/\mathit g_{ {{\mathit f}_{{0}}} {{\mathit \pi}} {{\mathit \pi}} }$ = 0.

⁹ In the kaon-loop fit.

¹⁰ In the no-structure fit.

¹¹ Systematic errors not estimated.

¹² 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.

¹³ 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 .

¹⁴ In the kaon-loop fit following formalism of ACHASOV 1989 .

¹⁵ In the no-structure fit assuming a direct coupling of ${{\mathit \phi}}$ to ${{\mathit f}_{{0}}}{{\mathit \gamma}}$ .

¹⁶ FLATTE 1976 parameterization. Supersedes GARMASH 2005 .

¹⁷ FLATTE 1976 parameterization, $\mathit g_{ {{\mathit f}_{{0}}} {{\mathit K}} {{\overline{\mathit K}}} }/\mathit g_{ {{\mathit f}_{{0}}} {{\mathit \pi}} {{\mathit \pi}} }$ = $4.21$ $\pm0.25$ $\pm0.21$.

¹⁸ 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.

¹⁹ 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.

²⁰ Coupled-channel Breit-Wigner, couplings $\mathit g_{{{\mathit \pi}}}=0.09$ $\pm0.01$ $\pm0.01$, $\mathit g_{{{\mathit K}}}=0.02$ $\pm0.04$ $\pm0.03$.

²¹ Supersedes ACHASOV 1998I. Using the model of ACHASOV 1989 .

²² Supersedes ACHASOV 1998I.

²³ In the ``narrow resonance'' approximation.

²⁴ Assuming $\Gamma\mathrm {({{\mathit f}_{{0}}})}$= 40 MeV.

²⁵ From a narrow pole fit taking into account ${{\mathit f}_{{0}}{(980)}}$ and ${{\mathit f}_{{0}}{(1200)}}$ intermediate mechanisms.

²⁶ From the combined fit of the photon spectra in the reactions ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \gamma}}$ , ${{\mathit \pi}^{0}}{{\mathit \pi}^{0}}{{\mathit \gamma}}$ .

²⁷ Supersedes BARBERIS 1999 and BARBERIS 1999B

²⁸ T-matrix pole.

²⁹ From invariant mass fit.

³⁰ On sheet II in a 2 pole solution. The other pole is found on sheet$~$III at (1039$−93\mathit i$) MeV.

³¹ On sheet II in a 2 pole solution. The other pole is found on sheet III at (963-29i) MeV.

³² Reanalysis of data from HYAMS 1973 , GRAYER 1974 , SRINIVASAN 1975 , and ROSSELET 1977 using the interfering amplitude method.

³³ At high $\vert {{\mathit t}}\vert $.

³⁴ At low $\vert {{\mathit t}}\vert $.

³⁵ 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.

³⁶ Combined fit of ALDE 1995B, ANISOVICH 1994 , AMSLER 1994D.

³⁷ On sheet II in a 2 pole solution. The other pole is found on sheet$~$III at (996$-103\mathit i$) MeV.

³⁸ From sheet II pole position.

³⁹ 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.

⁴⁰ On sheet II in a 2 pole solution. The other pole is found on sheet$~$III at (978$-28\mathit i$) MeV.

⁴¹ From coupled channel analysis.

⁴² Coupled channel analysis with finite width corrections.

⁴³ Included in AGUILAR-BENITEZ 1978 fit.

References:

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2015P

PR D92 012007

Observation of the Isospin-Violating Decay ${{\mathit J / \psi}}$ $\rightarrow$ ${{\mathit \phi}}{{\mathit \pi}^{0}}{{\mathit f}_{{0}}{(980)}}$

ABLIKIM

2012E

PRL 108 182001

First Observation of ${{\mathit \eta}{(1405)}}$ Decays into ${{\mathit f}_{{0}}{(980)}}{{\mathit \pi}^{0}}$

GARCIA-MARTIN

2011

PRL 107 072001

Precise Determination of the ${{\mathit f}_{{0}}{(600)}}$ and ${{\mathit f}_{{0}}{(980)}}$ Pole Parameters from a Dispersive Data Analysis

MOUSSALLAM

2011

EPJ C71 1814

Couplings of Light $\mathit I = 0$ Scalar Mesons to Simple Operators in the Complex Plane

MENNESSIER

2010

PL B688 59

The ${{\mathit \sigma}}$ and ${{\mathit f}_{{0}}{(980)}}$ from ${{\mathit K}_{{e4}}}$⊕${{\mathit \pi}}{{\mathit \pi}}$ Scatterings Data

2009

IJMP A24 2481

The Combined Analysis of ${{\mathit \pi}}$ ${{\mathit N}}$ $\rightarrow$ two mesons ${+}$ ${{\mathit N}}$ Reactions within Reggeon Exchanges and Data for ${{\mathit p}}$ ${{\overline{\mathit p}}}$ (at rest) $\rightarrow$ three mesons

ECKLUND

2009

PR D80 052009

Study of the Semileptonic Decay ${{\mathit D}_{{s}}^{+}}$ $\rightarrow$ ${{\mathit f}_{{0}}{(980)}}{{\mathit e}^{+}}{{\mathit \nu}}$ and Implications for ${{\mathit B}_{{s}}^{0}}$ $\rightarrow$ ${{\mathit J / \psi}}{{\mathit f}_{{0}}}$

UEHARA

2008A

PR D78 052004

High-Statistics Measurement of Neutral-Pion Pair Production in Two-Photon Collisions

AMBROSINO

2007

EPJ C49 473

Dalitz Plot Analysis of ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \pi}^{0}}{{\mathit \pi}^{0}}{{\mathit \gamma}}$ Events at $\sqrt {s }$ $\simeq{}$ $\mathit M_{{{\mathit \phi}}}$ with the KLOE Detector

AUBERT

2007AK

PR D76 012008

${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit K}^{+}}{{\mathit K}^{-}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ , ${{\mathit K}^{+}}{{\mathit K}^{-}}{{\mathit \pi}^{0}}{{\mathit \pi}^{0}}$ and ${{\mathit K}^{+}}{{\mathit K}^{-}}{{\mathit K}^{+}}{{\mathit K}^{-}}$ Cross Sections Measured with Initial-State Radiation

BONVICINI

2007

PR D76 012001

Dalitz Plot Analysis of the ${{\mathit D}^{+}}$ $\rightarrow$ ${{\mathit \pi}^{-}}{{\mathit \pi}^{+}}{{\mathit \pi}^{+}}$ Decay

MORI

2007

PR D75 051101

High Statistics Study of the Resonance in ${{\mathit \gamma}}$ ${{\mathit \gamma}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ Production

AMBROSINO

2006B

PL B634 148

Study of the Decay ${{\mathit \phi}}$ $\rightarrow$ ${{\mathit \gamma}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \gamma}}$ with the KLOE Detector

GARMASH

2006

PRL 96 251803

Evidence for Large Direct $\mathit CP$ Violation in ${{\mathit B}^{\pm}}$ $\rightarrow$ ${{\mathit \rho}{(770)}^{0}}{{\mathit K}^{\pm}}$ from Analysis of Three-Body Charmless ${{\mathit B}^{\pm}}$ $\rightarrow$ ${{\mathit K}^{\pm}}{{\mathit \pi}^{\pm}}{{\mathit \pi}^{\pm}}$ Decays

ABLIKIM

2005

PL B607 243

Resonances in ${{\mathit J / \psi}}$ $\rightarrow$ ${{\mathit \phi}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ and ${{\mathit \phi}}{{\mathit K}^{+}}{{\mathit K}^{-}}$

2003

EPJ A16 229

K Matrix Analysis of the ($\mathit IJ{}^{PC}$ = 00${}^{++}$)-wave in the Mass Region below 1900 MeV

TIKHOMIROV

2003

PAN 66 828

Resonances in the ${{\mathit K}_S^0}$ ${{\mathit K}_S^0}$ ${{\mathit K}_L^0}$ System Produced in Collisions of Negative Pions with a Carbon Target at a Momentum of 40 GeV

ALOISIO

2002D

PL B537 21

Study of the Decay ${{\mathit \phi}}$ $\rightarrow$ ${{\mathit \pi}^{0}}{{\mathit \pi}^{0}}{{\mathit \gamma}}$ with the KLOE Detector

AITALA

2001A

PRL 86 765

Study of the ${{\mathit D}_{{s}}^{+}}$ $\rightarrow$ ${{\mathit \pi}^{-}}{{\mathit \pi}^{+}}{{\mathit \pi}^{+}}$ Decay Measurement of ${{\mathit f}_{{0}}}$ Masses and Widths

ACHASOV

2000H

PL B485 349

The ${{\mathit \phi}{(1020)}}$ $\rightarrow$ ${{\mathit \pi}^{0}}{{\mathit \pi}^{0}}{{\mathit \gamma}}$ Decay

AKHMETSHIN

1999C

PL B462 380

Study of the ${{\mathit \phi}}$ Decays into ${{\mathit \pi}^{0}}{{\mathit \pi}^{0}}{{\mathit \gamma}}$ and ${{\mathit \eta}}{{\mathit \pi}^{0}}{{\mathit \gamma}}$ Final States

AKHMETSHIN

1999B

PL B462 371

First Observation of the ${{\mathit \phi}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \gamma}}$ Decay

1999D

PL B462 462

A Coupled Channel Analysis of the Centrally Produced ${{\mathit K}^{+}}{{\mathit K}^{-}}$ and ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ Final States in ${{\mathit p}}{{\mathit p}}$ Interactions at 450 ${\mathrm {GeV/}}\mathit c$

PL B453 305

A Partial Wave Analysis of the Centrally Produced ${{\mathit K}^{+}}{{\mathit K}^{-}}$ and ${{\mathit K}_S^0}$ ${{\mathit K}_S^0}$ Systems in ${{\mathit p}}{{\mathit p}}$ Interactions at 450 ${\mathrm {GeV/}}\mathit c$ and New Information on the Spin of the ${{\mathit f}_{{J}}{(1710)}}$

1999B

PL B453 316

A Partial Wave Analysis of the Centrally Produced ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ System in ${{\mathit p}}{{\mathit p}}$ Interactions at 450 ${\mathrm {GeV/}}\mathit c$

1999C

PL B453 325

A Partial Wave Analysis of the Centrally Produced ${{\mathit \pi}^{0}}{{\mathit \pi}^{0}}$ System in ${{\mathit p}}{{\mathit p}}$ Interactions at 450 ${\mathrm {GeV/}}\mathit c$

BELLAZZINI

PL B467 296

A Partial Wave Analysis of the Centrally Produced ${{\mathit \pi}^{0}}{{\mathit \pi}^{0}}$ System in ${{\mathit p}}{{\mathit p}}$ Interactions at 450 ${\mathrm {GeV/}}\mathit c$

EPJ C9 141

Scalar Mesons and Multichannel Amplitudes

1999C

PR D60 074023

N/D Description of Two Meson Amplitudes and Chiral Symmetry

1999B

NP A652 407 (erratum)

Chiral Symmetry Amplitudes in the S-wave Isoscalar and Isovector Channels and the ${{\mathit \sigma}}$, ${{\mathit f}_{{0}}{(980)}}$, ${{\mathit a}_{{0}}{(980)}}$ Scalar Mesons

PR D60 099906 (erratum)

Meson-Meson Interaction in a Nonperturbative Chiral Approach

ACKERSTAFF

1998Q

EPJ C4 19

Production of ${{\mathit f}_{{0}}{(980)}}$, ${{\mathit f}_{{2}}{(1270)}}$ and ${{\mathit \phi}{(1020)}}$ in Hadronic ${{\mathit Z}^{0}}$ Decay

EPJ A3 361

Study of the ${{\mathit \pi}^{0}}{{\mathit \pi}^{0}}$ System with the GAMS-4000 Spectrometer at 100 ${\mathrm {GeV/}}\mathit c$

1998B

SPU 41 419

The Lightest Scalar Glueball

LOCHER

EPJ C4 317

Structure of ${{\mathit f}_{{0}}{(980)}}$ from a Coupled Channel Analysis of S-wave ${{\mathit \pi}}{{\mathit \pi}}$ Scattering

1997

PL B397 350

Study of the ${{\mathit \pi}^{0}}{{\mathit \pi}^{0}}$ System in ${{\mathit p}}{{\mathit p}}$ Central Collisions at 450 ${\mathrm {GeV/}}\mathit c$

BERTIN

1997C

PL B408 476

Spin Parity Analysis of the Final State ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \pi}^{0}}$ from ${{\overline{\mathit p}}}{{\mathit p}}$ Annihilation at Rest in Hydrogen Targets at Three Densities

ISHIDA

PTP 95 745

An Analysis of ${{\mathit \pi}}{{\mathit \pi}}$ Scattering Phase Shift and Existence of ${{\mathit \sigma}{(555)}}$ Particle

TORNQVIST

PRL 76 1575

Resurrection of the ${{\mathit \sigma}}$ Meson

1995B

ZPHY C66 375

Study of the ${{\mathit f}_{{0}}{(995)}}$ Resonance in the ${{\mathit \pi}^{0}}{{\mathit \pi}^{0}}$ Decay Channel

1995B

PL B342 433

High Statistical Study of ${{\mathit f}_{{0}}{(1500)}}$ Decay into ${{\mathit \pi}^{0}}{{\mathit \pi}^{0}}$

1995D

PL B355 425

Coupled Channel Analysis of ${{\overline{\mathit p}}}{{\mathit p}}$ Annihilation into ${{\mathit \pi}^{0}}{{\mathit \pi}^{0}}{{\mathit \pi}^{0}}$, ${{\mathit \pi}^{0}}{{\mathit \eta}}{{\mathit \eta}}$ and ${{\mathit \pi}^{0}}{{\mathit \pi}^{0}}{{\mathit \eta}}$

PL B355 363

Two Resonance Structure of the ($\mathit I(\mathit J{}^{PC}) = 0(0{}^{++})$) ${{\mathit \pi}}{{\mathit \pi}}$ Amplitude in Mass Region around 1 GeV

JANSSEN

PR D52 2690

On the Structure of the Scalar Mesons ${{\mathit f}_{{0}}{(975)}}$ and ${{\mathit a}_{{0}}{(980)}}$

BUGG

PR D50 4412

Coupled Channel Analysis of Data on ${{\overline{\mathit p}}}$ ${{\mathit p}}$ $\rightarrow$ 3 ${{\mathit \pi}^{0}}$ , ${{\mathit \eta}}{{\mathit \eta}}{{\mathit \pi}^{0}}$, and ${{\mathit \eta}}{{\mathit \pi}^{0}}{{\mathit \pi}^{0}}$ at Rest, with the N/D Method

PR D50 3145

Relativistic Effects in the Scalar Meson Dynamics

ZOU

1994B

PR D50 591

Remarks on $\mathit I = 0$ $\mathit J{}^{PC} = 0{}^{++}$ States: $\sigma /\epsilon $ and ${{\mathit f}_{{0}}{(975)}}$

MORGAN

1993

PR D48 1185

New Data on the ${{\mathit K}}{{\overline{\mathit K}}}$ Threshold Region and the Nature of the ${{\mathit f}_{{0}}{(S*)}}$

AGUILAR-BENITEZ

ZPHY C50 405

Inclusive Particle Production in 400 ${\mathrm {GeV/}}\mathit c$ ${{\mathit p}}{{\mathit p}}$ Interactions

ARMSTRONG

ZPHY C51 351

Study of the Centrally Produced ${{\mathit \pi}}{{\mathit \pi}}$ and ${{\mathit K}}{{\overline{\mathit K}}}$ Systems at 85 and 300 ${\mathrm {GeV/}}\mathit c$

BREAKSTONE

1990

ZPHY C48 569

The Reaction pomeron pomeron $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ and an Unusual Production Mechanism for the ${{\mathit f}_{{2}}{(1270)}}$

AUGUSTIN

1989

NP B320 1

Study of the ${{\mathit J / \psi}}$ Decay into Five Pions

ABACHI

1986B

PRL 57 1990

Observation of Tensor and Scalar Mesons Produced in ${{\mathit e}^{+}}{{\mathit e}^{-}}$ Annihilation at 29 GeV

ETKIN

1982B

PR D25 1786

Amplitude Analysis of the ${{\mathit K}_S^0}{{\mathit K}_S^0}$ System Produced in the Reaction ${{\mathit \pi}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit K}_S^0}$ ${{\mathit K}_S^0}$ ${{\mathit n}}$ at 23 ${\mathrm {GeV/}}\mathit c$

GIDAL

1981

PL 107B 153

Observation of ${{\mathit S}^{*}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ in ${{\mathit \psi}}$ Decay

ACHASOV

1980

SJNP 32 566

Nature of Scalar Resonances

AGUILAR-BENITEZ

1978

NP B140 73

Study of a ${{\mathit K}_S^0}$ ${{\mathit K}_S^0}$ Plus Threshold Enhancement Observed in the Final States ${{\overline{\mathit p}}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit K}_S^0}$ ${{\mathit K}_S^0}$ Pions at 700 to 760 ${\mathrm {MeV}}/\mathit c$

LEEPER

1977

PR D16 2054

A Study of the Reactions ${{\mathit \pi}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit n}}$ and ${{\mathit \pi}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit K}^{+}}{{\mathit K}^{-}}{{\mathit n}}$ at 1.98 and 2.41 ${\mathrm {GeV/}}\mathit c$

BINNIE

PRL 31 1534

Direct Evidence for the ${{\mathit S}^{*}}$ Meson near the ${{\mathit K}}{{\overline{\mathit K}}}$ Threshold

GRAYER

Tallahassee

Coupled Channel Analysis in the ${{\mathit K}}{{\overline{\mathit K}}}$ Threshold Region

HYAMS

NP B64 134

${{\mathit \pi}}{{\mathit \pi}}$ Phase Shift Analysis from 600 to 1900 MeV

PROTOPOPESCU