# ${{\boldsymbol \pi}}{{\boldsymbol \pi}}$ MODE INSPIRE search

VALUE (MeV) EVTS DOCUMENT ID TECN  COMMENT
• • • We do not use the following data for averages, fits, limits, etc. • • •
$1400$ $\pm40$ 1
 2009 L
BABR ${{\mathit B}^{\pm}}$ $\rightarrow$ ${{\mathit \pi}^{\pm}}{{\mathit \pi}^{\pm}}{{\mathit \pi}^{\mp}}$
$1470$ ${}^{+6}_{-7}$ ${}^{+72}_{-255}$ 2
 2008 A
BELL 10.6 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit e}^{+}}{{\mathit e}^{-}}{{\mathit \pi}^{0}}{{\mathit \pi}^{0}}$
$1259$ $\pm55$ 2.6k
 2007
CLEO ${{\mathit D}^{+}}$ $\rightarrow$ ${{\mathit \pi}^{-}}{{\mathit \pi}^{+}}{{\mathit \pi}^{+}}$
$1309$ $\pm1$ $\pm15$ 3
 2007 A
RVUE 0.0 ${{\mathit p}}$ ${{\overline{\mathit p}}}$ $\rightarrow$ 3 ${{\mathit \pi}^{0}}$
$1449$ $\pm13$ 4.3k 4
 2006
BELL ${{\mathit B}^{+}}$ $\rightarrow$ ${{\mathit K}^{+}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$
$1350$ $\pm50$
 2005
BES2 ${{\mathit J / \psi}}$ $\rightarrow$ ${{\mathit \phi}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$
$1265$ $\pm30$ ${}^{+20}_{-35}$
 2005 Q
BES2 ${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit K}^{+}}{{\mathit K}^{-}}$
$1434$ $\pm18$ $\pm9$ 848
 2001 A
E791 ${{\mathit D}_{{s}}^{+}}$ $\rightarrow$ ${{\mathit \pi}^{-}}{{\mathit \pi}^{+}}{{\mathit \pi}^{+}}$
$1308$ $\pm10$
 1999 B
OMEG 450 ${{\mathit p}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit p}_{{s}}}{{\mathit p}_{{f}}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$
$1315$ $\pm50$
 1999
GAM4 450 ${{\mathit p}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit p}}{{\mathit p}}{{\mathit \pi}^{0}}{{\mathit \pi}^{0}}$
$1315$ $\pm30$
 1998
GAM4 100 ${{\mathit \pi}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \pi}^{0}}{{\mathit \pi}^{0}}{{\mathit n}}$
$1280$ $\pm55$
 1998
OBLX $0.05 - 0.405$ ${{\overline{\mathit n}}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$
$1186$ 5, 6
 1995
RVUE ${{\mathit \pi}}$ ${{\mathit \pi}}$ $\rightarrow$ ${{\mathit \pi}}{{\mathit \pi}}$ , ${{\mathit K}}{{\overline{\mathit K}}}$ , ${{\mathit K}}{{\mathit \pi}}$ , ${{\mathit \eta}}{{\mathit \pi}}$
$1472$ $\pm12$
 1991
OMEG 300 ${{\mathit p}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit p}}{{\mathit p}}{{\mathit \pi}}{{\mathit \pi}}$ , ${{\mathit p}}{{\mathit p}}{{\mathit K}}{{\overline{\mathit K}}}$
$1275$ $\pm20$
 1990
SFM 62 ${{\mathit p}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit p}}{{\mathit p}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$
$1420$ $\pm20$
 1986
SPEC 63 ${{\mathit p}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit p}}{{\mathit p}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$
$1256$
 1977
RVUE ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ channel
1  Breit-Wigner mass.
2  Breit-Wigner mass. May also be the ${{\mathit f}_{{0}}{(1500)}}$.
3  Reanalysis of ABELE 1996C data.
4  Also observed by GARMASH 2007 in ${{\mathit B}^{0}}$ $\rightarrow$ ${{\mathit K}_S^0}$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ decays. Supersedes GARMASH 2005 .
5  Uses data from BEIER 1972B, OCHS 1973 , HYAMS 1973 , GRAYER 1974 , ROSSELET 1977 , CASON 1983 , ASTON 1988 , and ARMSTRONG 1991B. Coupled channel analysis with flavor symmetry and all light two-pseudoscalars systems.
6  Also observed by ASNER 2000 in ${{\mathit \tau}^{-}}$ $\rightarrow$ ${{\mathit \pi}^{-}}{{\mathit \pi}^{0}}{{\mathit \pi}^{0}}{{\mathit \nu}_{{\tau}}}$ decays
References:
 AUBERT 2009L
PR D79 072006 Dalitz Plot Analysis of ${{\mathit B}^{\pm}}$ $\rightarrow$ ${{\mathit \pi}^{\pm}}{{\mathit \pi}^{\pm}}{{\mathit \pi}^{\mp}}$ Decays
 UEHARA 2008A
PR D78 052004 High-Statistics Measurement of Neutral-Pion Pair Production in Two-Photon Collisions
 BONVICINI 2007
PR D76 012001 Dalitz Plot Analysis of the ${{\mathit D}^{+}}$ $\rightarrow$ ${{\mathit \pi}^{-}}{{\mathit \pi}^{+}}{{\mathit \pi}^{+}}$ Decay
 BUGG 2007A
JP G34 151 The Mass of the $\sigma$ Pole
 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 ${{\mathit \phi}}{{\mathit K}^{+}}{{\mathit K}^{-}}$
 ABLIKIM 2005Q
PR D72 092002 Partial Wave Analysis of ${{\mathit \chi}_{{c}}^{0}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit K}^{+}}{{\mathit K}^{-}}$
 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
 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 ${\mathrm {GeV/}}\mathit c$
 BELLAZZINI 1999
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 ${\mathrm {GeV/}}\mathit c$
 ALDE 1998
EPJ A3 361 Study of the ${{\mathit \pi}^{0}}{{\mathit \pi}^{0}}$ System with the GAMS-4000 Spectrometer at 100 ${\mathrm {GeV/}}\mathit c$
 BERTIN 1998
PR D57 55 Study of the ${{\mathit f}_{{0}}{(1500)}}/{{\mathit f}_{{2}}{(1565)}}$ Production in the Exclusive Annihilation ${{\overline{\mathit n}}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ in Flight
 TORNQVIST 1995
ZPHY C68 647 Understanding the Scalar Meson ${\mathit {\mathit q}}{\mathit {\overline{\mathit q}}}$ Nonet
 ARMSTRONG 1991
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 ${{\mathit f}_{{2}}{(1270)}}$
 AKESSON 1986
NP B264 154 A Search for Glueballs and a Study of Double Pomeron Exchange at the CERN Intersecting Storage Rings
 FROGGATT 1977
NP B129 89 Phase Shift Analysis of ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ Scattering between 1.0 and 1.8 GeV Based on Fixed Momentum Transfer Analyticity. 2.