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${{\mathit f}_{{0}}{(1710)}}$ Breit-Wigner MASS

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M068M

VALUE (MeV) EVTS DOCUMENT ID TECN  COMMENT $\bf{ 1733 {}^{+8}_{-7}}$ OUR AVERAGE  Error includes scale factor of 1.5.  See the ideogram below. $1757$ $\pm24$ $\pm9$ LEES 2021 A BABR ${{\mathit \eta}_{{c}}{(1S)}}$ $\rightarrow$ ${{\mathit \eta}^{\,'}}{{\mathit K}^{+}}{{\mathit K}^{-}}$ $1759$ $\pm6$ ${}^{+14}_{-25}$ 5.5k 1 ABLIKIM 2013 N BES3 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit J / \psi}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \eta}}{{\mathit \eta}}$ $1750$ ${}^{+6}_{-7}$ ${}^{+29}_{-18}$ 2 UEHARA 2013 BELL ${{\mathit \gamma}}$ ${{\mathit \gamma}}$ $\rightarrow$ ${{\mathit K}_S^0}$ ${{\mathit K}_S^0}$ $1701$ $\pm5$ ${}^{+9}_{-2}$ 4k 3 CHEKANOV 2008 ZEUS ${{\mathit e}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit K}_S^0}$ ${{\mathit K}_S^0}$ ${{\mathit X}}$ $1765$ ${}^{+4}_{-3}$ $\pm13$ ABLIKIM 2006 V BES2 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit J / \psi}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ $1738$ $\pm30$ ABLIKIM 2004 E BES2 ${{\mathit J / \psi}}$ $\rightarrow$ ${{\mathit \omega}}{{\mathit K}^{+}}{{\mathit K}^{-}}$ $1740$ $\pm4$ ${}^{+10}_{-25}$ BAI 2003 G BES ${{\mathit J / \psi}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit K}}{{\overline{\mathit K}}}$ $1740$ ${}^{+30}_{-25}$ BAI 2000 A BES ${{\mathit J / \psi}}$ $\rightarrow$ ${{\mathit \gamma}}$( ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$) $1710$ $\pm25$ 4 FRENCH 1999 300 ${{\mathit p}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit p}_{{f}}}$( ${{\mathit K}^{+}}{{\mathit K}^{-}}$) ${{\mathit p}_{{s}}}$ • • We do not use the following data for averages, fits, limits, etc. • • $1744$ $\pm7$ $\pm5$ 381 5, 6 DOBBS 2015 ${{\mathit J / \psi}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ $1705$ $\pm11$ $\pm5$ 237 5, 6 DOBBS 2015 ${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ $1706$ $\pm4$ $\pm5$ 1.0k 5, 6 DOBBS 2015 ${{\mathit J / \psi}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit K}^{+}}{{\mathit K}^{-}}$ $1690$ $\pm8$ $\pm3$ 349 5, 6 DOBBS 2015 ${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit K}^{+}}{{\mathit K}^{-}}$ $1750$ $\pm13$ AMSLER 2006 CBAR 1.64 ${{\overline{\mathit p}}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit K}^{+}}{{\mathit K}^{-}}{{\mathit \pi}^{0}}$ $1747$ $\pm5$ 80k 7 UMAN 2006 E835 5.2 ${{\overline{\mathit p}}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \eta}}{{\mathit \eta}}{{\mathit \pi}^{0}}$ $1776$ $\pm15$ VLADIMIRSKY 2006 SPEC 40 ${{\mathit \pi}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit K}_S^0}$ ${{\mathit K}_S^0}$ ${{\mathit n}}$ $1670$ $\pm20$ BINON 2005 GAMS 33 ${{\mathit \pi}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \eta}}{{\mathit \eta}}{{\mathit n}}$ $1682$ $\pm16$ TIKHOMIROV 2003 SPEC 40.0 ${{\mathit \pi}^{-}}$ ${}^{}\mathrm {C}$ $\rightarrow$ ${{\mathit K}_S^0}$ ${{\mathit K}_S^0}$ ${{\mathit K}_L^0}$ X $1670$ $\pm26$ 3.6k 8 NICHITIU 2002 OBLX 0 ${{\overline{\mathit p}}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit K}^{+}}{{\mathit K}^{-}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \pi}^{0}}$ $1730$ $\pm15$ BARBERIS 1999 OMEG 450 ${{\mathit p}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit p}_{{s}}}{{\mathit p}_{{f}}}{{\mathit K}^{+}}{{\mathit K}^{-}}$ $1750$ $\pm20$ BARBERIS 1999 B OMEG 450 ${{\mathit p}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit p}_{{s}}}{{\mathit p}_{{f}}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ $1720$ $\pm39$ BAI 1998 H BES ${{\mathit J / \psi}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \pi}^{0}}{{\mathit \pi}^{0}}$ $1775$ $\pm1.5$ 57 9 BARKOV 1998 ${{\mathit \pi}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit K}_S^0}$ ${{\mathit K}_S^0}$ ${{\mathit n}}$ $1690$ $\pm11$ 10 ABREU 1996 C DLPH ${{\mathit Z}^{0}}$ $\rightarrow$ ${{\mathit K}^{+}}{{\mathit K}^{-}}$ + X $1696$ $\pm5$ ${}^{+9}_{-34}$ 11 BAI 1996 C BES ${{\mathit J / \psi}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit K}^{+}}{{\mathit K}^{-}}$ $1781$ $\pm8$ ${}^{+10}_{-31}$ BAI 1996 C BES ${{\mathit J / \psi}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit K}^{+}}{{\mathit K}^{-}}$ $1768$ $\pm14$ BALOSHIN 1995 SPEC 40 ${{\mathit \pi}^{-}}$ ${}^{}\mathrm {C}$ $\rightarrow$ ${{\mathit K}_S^0}$ ${{\mathit K}_S^0}$ X $1750$ $\pm15$ 12 BUGG 1995 MRK3 ${{\mathit J / \psi}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ $1620$ $\pm16$ 11 BUGG 1995 MRK3 ${{\mathit J / \psi}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ $1748$ $\pm10$ 13 ARMSTRONG 1993 C E760 ${{\overline{\mathit p}}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \pi}^{0}}{{\mathit \eta}}{{\mathit \eta}}$ $\rightarrow$ 6 ${{\mathit \gamma}}$ $\sim{}\text{ 1750}$ BREAKSTONE 1993 SFM ${{\mathit p}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit p}}{{\mathit p}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ $1744$ $\pm15$ 14 ALDE 1992 D GAM2 38 ${{\mathit \pi}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \eta}}{{\mathit \eta}}{{\mathit n}}$ $1713$ $\pm10$ 15 ARMSTRONG 1989 D OMEG 300 ${{\mathit p}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit p}}{{\mathit p}}{{\mathit K}^{+}}{{\mathit K}^{-}}$ $1706$ $\pm10$ 15 ARMSTRONG 1989 D OMEG 300 ${{\mathit p}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit p}}{{\mathit p}}{{\mathit K}_S^0}$ ${{\mathit K}_S^0}$ $1707$ $\pm10$ 13 AUGUSTIN 1988 DM2 ${{\mathit J / \psi}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit K}^{+}}{{\mathit K}^{-}}$ , ${{\mathit K}_S^0}$ ${{\mathit K}_S^0}$ $1700$ $\pm15$ 11 BOLONKIN 1988 SPEC 40 ${{\mathit \pi}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit K}_S^0}$ ${{\mathit K}_S^0}$ ${{\mathit n}}$ $1720$ $\pm60$ BOLONKIN 1988 SPEC 40 ${{\mathit \pi}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit K}_S^0}$ ${{\mathit K}_S^0}$ ${{\mathit n}}$ $1638$ $\pm10$ 16 FALVARD 1988 DM2 ${{\mathit J / \psi}}$ $\rightarrow$ ${{\mathit \phi}}{{\mathit K}^{+}}{{\mathit K}^{-}}$ , ${{\mathit K}_S^0}$ ${{\mathit K}_S^0}$ $1690$ $\pm4$ 17 FALVARD 1988 DM2 ${{\mathit J / \psi}}$ $\rightarrow$ ${{\mathit \phi}}{{\mathit K}^{+}}{{\mathit K}^{-}}$ , ${{\mathit K}_S^0}$ ${{\mathit K}_S^0}$ $1698$ $\pm15$ 13 AUGUSTIN 1987 DM2 ${{\mathit J / \psi}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ $1720$ $\pm10$ $\pm10$ 11 BALTRUSAITIS 1987 MRK3 ${{\mathit J / \psi}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit K}^{+}}{{\mathit K}^{-}}$ $1755$ $\pm8$ 18 ALDE 1986 C GAM2 38 ${{\mathit \pi}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit n}}$2 ${{\mathit \eta}}$ $1730$ ${}^{+2}_{-10}$ 19 LONGACRE 1986 RVUE 22 ${{\mathit \pi}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit n}}$2 ${{\mathit K}_S^0}$ $1742$ $\pm15$ 13 WILLIAMS 1984 MPSF 200 ${{\mathit \pi}^{-}}$ ${{\mathit N}}$ $\rightarrow$ 2 ${{\mathit K}_S^0}$ X $1670$ $\pm50$ BLOOM 1983 CBAL ${{\mathit J / \psi}}$ $\rightarrow$ ${{\mathit \gamma}}$2 ${{\mathit \eta}}$ $1650$ $\pm50$ BURKE 1982 MRK2 ${{\mathit J / \psi}}$ $\rightarrow$ ${{\mathit \gamma}}$2 ${{\mathit \rho}}$ $1640$ $\pm50$ 20, 21 EDWARDS 1982 D CBAL ${{\mathit J / \psi}}$ $\rightarrow$ ${{\mathit \gamma}}$2 ${{\mathit \eta}}$ $1730$ $\pm10$ $\pm20$ 22 ETKIN 1982 C MPS 23 ${{\mathit \pi}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit n}}$2 ${{\mathit K}_S^0}$ 1  From partial wave analysis including all possible combinations of 0${}^{++}$, 2${}^{++}$, and 4${}^{++}$ resonances. 2  Spin 0 favored over spin 2. 3  In the SU(3) based model with a specific interference pattern of the ${{\mathit f}_{{2}}{(1270)}}$, ${{\mathit a}_{{2}}^{0}{(1320)}}$, and ${{\mathit f}_{{2}}^{\,'}{(1525)}}$ mesons incoherently added to the ${{\mathit f}_{{0}}{(1710)}}$ and non-resonant background. 4  $\mathit J{}^{P} = 0{}^{+}$, supersedes ARMSTRONG 1989D. 5  Using CLEO-c data but not authored by the CLEO Collaboration. 6  From a fit to a Breit-Wigner line shape with fixed $\Gamma $ = 135 MeV. 7  Systematic errors not estimated. 8  Decaying to ${{\mathit f}_{{0}}{(1370)}}{{\mathit \pi}}{{\mathit \pi}}$ . 9  No $\mathit J{}^{PC}$ determination. 10  No $\mathit J{}^{PC}$ determination, width not determined. 11  $\mathit J{}^{P} = 2{}^{+}$. 12  From a fit to the ${}^{}0{}^{+}$ partial wave. 13  No $\mathit J{}^{PC}$ determination. 14  ALDE 1992D combines all the GAMS-2000 data. 15  $\mathit J{}^{P} = 2{}^{+}$, superseded by FRENCH 1999 . 16  From an analysis ignoring interference with ${{\mathit f}_{{2}}^{\,'}{(1525)}}$. 17  From an analysis including interference with ${{\mathit f}_{{2}}^{\,'}{(1525)}}$. 18  Superseded by ALDE 1992D. 19  Uses MRK3 data. From a partial-wave analysis of data using a K-matrix formalism with 5 poles, but assuming spin 2. Fit with constrained inelasticity. 20  $\mathit J{}^{P} = 2{}^{+}$ preferred. 21  From fit neglecting nearby ${{\mathit f}_{{2}}^{\,'}{(1525)}}$. Replaced by BLOOM 1983 . 22  Superseded by LONGACRE 1986 .

${{\mathit f}_{{0}}{(1710)}}$ mass (MeV)

References:

LEES 2021A PR D104 072002 Light meson spectroscopy from Dalitz plot analyses of $\eta_c$ decays to $\eta' K^+ K^-$, $\eta' \pi^+ \pi^-$, and $\eta \pi^+ \pi^-$ produced in two-photon interactions DOBBS 2015 PR D91 052006 Comprehensive Study of the Radiative Decays of ${{\mathit J / \psi}}$ and ${{\mathit \psi}{(2S)}}$ to Pseudoscalar Meson Pairs, and Search for Glueballs ABLIKIM 2013N PR D87 092009 Partial Wave Analysis of ${{\mathit J / \psi}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \eta}}{{\mathit \eta}}$ UEHARA 2013 PTEP 2013 123C01 High-Statistics Study of ${{\mathit K}_S^0}$ Pair Production in Two-Photon Collisions CHEKANOV 2008 PRL 101 112003 Inclusive ${{\mathit K}_S^0}$ ${{\mathit K}_S^0}$ Resonance Production in ${{\mathit e}}{{\mathit p}}$ Collisions at HERA ABLIKIM 2006V PL B642 441 Partial Wave Analyses of ${{\mathit J / \psi}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ and ${{\mathit \gamma}}{{\mathit \pi}^{0}}{{\mathit \pi}^{0}}$ AMSLER 2006 PL B639 165 Study of ${{\mathit K}}{{\overline{\mathit K}}}$ resonances in ${{\overline{\mathit p}}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit K}^{+}}{{\mathit K}^{-}}{{\mathit \pi}^{0}}$ at 900 and 1640 MeV/$\mathit c$ UMAN 2006 PR D73 052009 Light Quark Resonances in ${{\overline{\mathit p}}}{{\mathit p}}$ Annihilations at 5.2 GeV/$\mathit c$ VLADIMIRSKY 2006 PAN 69 493 Analysis of the ${{\mathit K}_S^0}$ ${{\mathit K}_S^0}$ System from the Reaction ${{\mathit \pi}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit K}_S^0}$ ${{\mathit K}_S^0}$ ${{\mathit n}}$ at 40 GeV BINON 2005 PAN 68 960 Investigation of the ${{\mathit \eta}}{{\mathit \eta}}$ System in ${{\mathit \pi}^{-}}{{\mathit p}}$ Interactions at a Momentum of 32.5 GeV/$\mathit c$ at the GAMS-4$\pi $ Spectrometer ABLIKIM 2004E PL B603 138 Study of ${{\mathit J / \psi}}$ $\rightarrow$ ${{\mathit \omega}}{{\mathit K}^{+}}{{\mathit K}^{-}}$ BAI 2003G PR D68 052003 Partial Wave Analyses of ${{\mathit J / \psi}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit K}^{+}}{{\mathit K}^{-}}$ and ${{\mathit \gamma}}{{\mathit K}_S^0}$ ${{\mathit K}_S^0}$ 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 NICHITIU 2002 PL B545 261 Study of the ${{\mathit K}^{+}}{{\mathit K}^{-}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \pi}^{0}}$ Final State in Antiproton Annihilation at Rest if Gaseous Hydrogen at NTP with the OBELIX Spectrometer BAI 2000A PL B472 207 Partial Wave Analysis of ${{\mathit J / \psi}}$ $\rightarrow$ ${{\mathit \gamma}}$( ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$) BARBERIS 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 ${\mathrm {GeV/}}\mathit c$ BARBERIS 1999 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 ${{\mathit f}_{{J}}{(1710)}}$ FRENCH 1999 PL B460 213 A Partial Wave Analysis of the Centrally Produced ${{\mathit K}^{+}}{{\mathit K}^{-}}$ System in ${{\mathit p}}{{\mathit p}}$ Interactions at 300 ${\mathrm {GeV/}}\mathit c$ BAI 1998H PRL 81 1179 Experimental Study of ${{\mathit J / \psi}}$ Radiative Decay to ${{\mathit \pi}^{0}}{{\mathit \pi}^{0}}$ BARKOV 1998 JETPL 68 764 Resonance Behaviour of ${{\mathit K}_S^0}$ ${{\mathit K}_S^0}$ System at the Mass about 1775 MeV ABREU 1996C PL B379 309 First Measurement of ${{\mathit f}_{{2}}^{\,'}{(1525)}}$ Production in ${{\mathit Z}^{0}}$ Hadronic Decays BAI 1996C PRL 77 3959 Structure Analysis of the ${{\mathit f}_{{J}}{(1710)}}$ in the Radiative Decay ${{\mathit J / \psi}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit K}^{+}}{{\mathit K}^{-}}$ BALOSHIN 1995 PAN 58 46 Amplitude Analysis of the ${{\mathit K}_S^0}{{\mathit K}_S^0}$ System Produced by 40 ${\mathrm {GeV/}}\mathit c$ Pions Incident on Carbon BUGG 1995 PL B353 378 Further Amplitude Analysis of ${{\mathit J / \psi}}$ $\rightarrow$ ${{\mathit \gamma}}$( ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$) ARMSTRONG 1993C PL B307 394 Evidence for ${{\mathit \eta}}{{\mathit \eta}}$ Resonances in Antiproton Proton Annihilations at 2950 $<$ $\sqrt {s }$ $<$ 3620 MeV BREAKSTONE 1993 ZPHY C58 251 Evidence for ${{\mathit f}_{{2}}{(1720)}}$ Production in the Reaction Pomeron Pomeron $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ ALDE 1992D PL B284 457 Production Mechanism of the ${{\mathit X}{(1740)}}$ Meson Also SJNP 54 451 Study of ${{\mathit X}{(1740)}}$ Production ARMSTRONG 1989D PL B227 186 Observation of Centrally Produced ${{\mathit f}_{{2}}{(1720)}}$ in the Reaction ${{\mathit p}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit p}_{{f}}}$( ${{\mathit K}}{{\overline{\mathit K}}}$) ${{\mathit p}_{{s}}}$ at 300 ${\mathrm {GeV/}}\mathit c$ AUGUSTIN 1988 PRL 60 2238 Measurement of Radiative ${{\mathit J / \psi}}$ Decays in ${{\mathit K}}{{\overline{\mathit K}}}$ States BOLONKIN 1988 NP B309 426 ${{\mathit \theta}{(1700)}}$ and ${{\mathit \xi}{(2230)}}$ Resonances in the ${{\mathit \pi}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit K}_S^0}$ ${{\mathit K}_S^0}$ ${{\mathit n}}$ Reaction at Momentum 40 ${\mathrm {GeV/}}\mathit c$ FALVARD 1988 PR D38 2706 Study of Hadronic ${{\mathit J / \psi}}$ Decays Involving ${{\mathit \phi}}$ and ${{\mathit \omega}}$ Production AUGUSTIN 1987 ZPHY C36 369 Radiative Decay of ${{\mathit J / \psi}}$ into ${{\mathit \gamma}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ BALTRUSAITIS 1987 PR D35 2077 Radiative Decays of the ${{\mathit J / \psi}}$ into ${{\mathit \gamma}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ and ${{\mathit \gamma}}{{\mathit K}^{+}}{{\mathit K}^{-}}$ ALDE 1986C PL B182 105 Observation of a Narrow Meson with a Mass of 1750 MeV Decaying into ${{\mathit \eta}}{{\mathit \eta}}$ Pair LONGACRE 1986 PL B177 223 A Measurement of ${{\mathit \pi}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit K}_S^0}$ ${{\mathit K}_S^0}$ ${{\mathit n}}$ at 22 ${\mathrm {GeV/}}\mathit c$ and a Systematic Study of the $2+{}^{+}{}^{}$ Meson Spectrum WILLIAMS 1984 PR D30 877 Forward ${{\mathit K}_S^0}$ ${{\mathit K}_S^0}$ Production in 200 ${\mathrm {GeV/}}\mathit c$ ${{\mathit \pi}^{-}}$ N Interactions BLOOM 1983 ARNS 33 143 Physics with the Crystal Ball Detector BURKE 1982 PRL 49 632 Observation of the Decay ${{\mathit \psi}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \rho}^{0}}{{\mathit \rho}^{0}}$ EDWARDS 1982D PRL 48 458 Evidence for an ${{\mathit \eta}}{{\mathit \eta}}$ Resonance in ${{\mathit J / \psi}}$ Radiative Decays Also ARNS 33 143 Physics with the Crystal Ball Detector ETKIN 1982C PR D25 2446 Evidence for Two New $0+{}^{+}{}^{}$ Mesons and a Possible Scalar Decuplet