# ${{\boldsymbol f}_{{2}}{(1270)}}$ WIDTH INSPIRE search

VALUE (MeV) EVTS DOCUMENT ID TECN  COMMENT
$\bf{ 186.7 {}^{+2.2}_{-2.5}}$ OUR FIT  Error includes scale factor of 1.4.
$\bf{ 185.9 {}^{+2.8}_{-2.1}}$ OUR AVERAGE  Error includes scale factor of 1.6.
$190.3$ $\pm1.9$ $\pm1.8$ 1
 2013
SPEC 7${{\mathit \pi}^{+}}({{\mathit K}^{+}},{{\mathit p}}$) ${{\mathit A}}$ $\rightarrow$ ${{\mathit n}}{{\mathit \gamma}}{+}$ ${{\mathit X}}$
$175$ ${}^{+6}_{-4}$ $\pm10$ 2
 2006 V
BES2 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit J / \psi}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$
$190$ $\pm20$
 2005
BES2 ${{\mathit J / \psi}}$ $\rightarrow$ ${{\mathit \phi}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$
$171$ $\pm10$
 1998
GAM4 100 ${{\mathit \pi}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \pi}^{0}}{{\mathit \pi}^{0}}{{\mathit n}}$
$204$ $\pm20$ 3
 1997 C
OBLX 0.0 ${{\overline{\mathit p}}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \pi}^{0}}$
$192$ $\pm5$ 200k
 1994
GAM2 38 ${{\mathit \pi}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \pi}^{0}}{{\mathit \pi}^{0}}{{\mathit n}}$
$180$ $\pm24$
 1991
EHS 400 ${{\mathit p}}{{\mathit p}}$
$169$ $\pm9$ 5730 4
 1989
DM2 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ 5 ${{\mathit \pi}}$
$150$ $\pm30$ $400$ 4
 1987
GAM4 100 ${{\mathit \pi}^{-}}$ ${{\mathit p}}$ $\rightarrow$ 4 ${{\mathit \pi}^{0}}{{\mathit n}}$
$186$ ${}^{+9}_{-2}$ 5
 1986
MPS 22 ${{\mathit \pi}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit n}}$2 ${{\mathit K}_S^0}$
$179.2$ ${}^{+6.9}_{-6.6}$ 6
 1983
ASPK 17 ${{\mathit \pi}^{-}}{{\mathit p}}$ polarized
$160$ $\pm11$
 1983
LASS 10 ${{\mathit \pi}^{+}}{{\mathit N}}$
$196$ $\pm10$ 3k
 1982
CNTR 25 ${{\mathit \pi}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit n}}$2 ${{\mathit \pi}^{0}}$
$152$ $\pm9$ 7
 1982
STRC 8 ${{\mathit \pi}^{+}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \Delta}^{++}}{{\mathit \pi}^{0}}{{\mathit \pi}^{0}}$
$186$ $\pm27$ $11600$
 1981
MRK2 ${{\mathit J / \psi}}$ decay
$216$ $\pm13$ 8
 1979
OMEG 12$-$15 ${{\mathit \pi}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit n}}$2 ${{\mathit \pi}}$
$190$ $\pm10$ 10k
 1975
NICE 40 ${{\mathit \pi}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit n}}$2 ${{\mathit \pi}^{0}}$
$192$ $\pm16$ 4600
 1974
DBC 6 ${{\mathit \pi}^{+}}$ ${{\mathit n}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit p}}$
$183$ $\pm15$ 5300
 1971
HBC 7 ${{\mathit \pi}^{+}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \Delta}^{++}}{{\mathit f}_{{2}}}$
$196$ $\pm30$ 4
 1970
HBC 8 ${{\mathit \pi}^{-}}{{\mathit p}}$ , 5.4 ${{\mathit \pi}^{+}}{{\mathit d}}$
$216$ $\pm20$ 1960 4
 1968
DBC 5.1 ${{\mathit \pi}^{+}}$ ${{\mathit n}}$ $\rightarrow$ ${{\mathit p}}{{\mathit \pi}^{+}}$ MM${}^{-}$
$128$ $\pm27$ 4
 1968
HBC 8 ${{\mathit \pi}^{+}}{{\mathit p}}$
$176$ $\pm21$ 9, 4
 1968
HBC 3.7$-$4.2 ${{\mathit \pi}^{-}}{{\mathit p}}$
• • • We do not use the following data for averages, fits, limits, etc. • • •
$194$ $\pm36$ 10
 2009
RVUE 0.0 ${{\overline{\mathit p}}}{{\mathit p}}$ , ${{\mathit \pi}}{{\mathit N}}$
$195$ $\pm15$ 870 11
 2006 A
RVUE ${{\mathit \gamma}}$ ${{\mathit \gamma}}$ $\rightarrow$ ${{\mathit K}_S^0}$ ${{\mathit K}_S^0}$
$121$ $\pm26$
 2003
SPEC 40.0 ${{\mathit \pi}^{-}}$ ${}^{}\mathrm {C}$ $\rightarrow$ ${{\mathit K}_S^0}$ ${{\mathit K}_S^0}$ ${{\mathit K}_L^0}$ X
$187$ $\pm20$ 12
 1997
GAM2 450 ${{\mathit p}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit p}}{{\mathit p}}{{\mathit \pi}^{0}}{{\mathit \pi}^{0}}$
$184$ $\pm10$ 12
 1996
SPEC 40 ${{\mathit \pi}^{-}}$ ${{\mathit N}}$ $\rightarrow$ ${{\mathit K}_S^0}$ ${{\mathit K}_S^0}$ X
$200$ $\pm10$
 1991
CBAR $0.0$ ${{\overline{\mathit p}}}$ ${{\mathit p}}$ $\rightarrow$ 3 ${{\mathit \pi}^{0}}$
$240$ $\pm40$ 3k
 1983
GAM2 38 ${{\mathit \pi}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit n}}$2 ${{\mathit \eta}}$
$187$ $\pm30$ 650 4
 1977
CIBS 25 ${{\mathit \pi}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit p}}$3 ${{\mathit \pi}}$
$225$ $\pm38$ 16000
 1976
HBC 16 ${{\mathit \pi}^{+}}{{\mathit p}}$
$166$ $\pm28$ 600 4
 1972
HBC 8 ${{\mathit \pi}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit n}}$2 ${{\mathit \pi}}$
$173$ $\pm53$ 4
 1970
HBC 9 ${{\mathit \pi}^{+}}$ ${{\mathit n}}$ $\rightarrow$ ${{\mathit p}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$
1  Averaged over six nuclear targets, no statistically significant dependence on target nucleus observed.
2  Breit-Wigner width
3  T-matrix pole.
4  Width errors enlarged by us to 4${}\Gamma /\sqrt {\mathit N }$; see the note with the ${{\mathit K}^{*}{(892)}}$ mass.
5  From a partial-wave analysis of data using a K-matrix formalism with 5 poles.
6  From an energy-independent partial-wave analysis.
7  From an amplitude analysis of the reaction ${{\mathit \pi}^{+}}$ ${{\mathit \pi}^{-}}$ $\rightarrow$ 2 ${{\mathit \pi}^{0}}$ .
8  From an amplitude analysis of ${{\mathit \pi}^{+}}$ ${{\mathit \pi}^{-}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ scattering data.
9  JOHNSON 1968 includes BONDAR 1963 , LEE 1964 , DERADO 1965 , EISNER 1967 .
10  4-poles, 5-channel K matrix fit.
11  From analysis of L3 data at 91 and $183 - 209$ GeV.
12  Systematic uncertainties not estimated.

${{\mathit f}_{{2}}{(1270)}}$ width (MeV)
References:
 BOGOLYUBSKY 2013
PAN 76 1324 Measurement of Neutral-Meson Masses in Meson-Nucleus Interactions at a Momentum of 7 GeV/$\mathit c$ at the Hyperon-M Setup
 ANISOVICH 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
 ABLIKIM 2006V
PL B642 441 Partial Wave Analyses of ${{\mathit J / \psi}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ and ${{\mathit \gamma}}{{\mathit \pi}^{0}}{{\mathit \pi}^{0}}$
 SCHEGELSKY 2006A
EPJ A27 207 The ${{\mathit K}_S^0}$ ${{\mathit K}_S^0}$ Final State in Two-Photon Collisions and SU(3) Tensor Nonets
 ABLIKIM 2005
PL B607 243 Resonances in ${{\mathit J / \psi}}$ $\rightarrow$ ${{\mathit \phi}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ and ${{\mathit \phi}}{{\mathit K}^{+}}{{\mathit K}^{-}}$
 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
 ALDE 1998
EPJ A3 361 Study of the ${{\mathit \pi}^{0}}{{\mathit \pi}^{0}}$ System with the GAMS-4000 Spectrometer at 100 ${\mathrm {GeV/}}\mathit c$
 ALDE 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
 GRYGOREV 1996
PAN 59 2105 Observation of an Anomaly in the Invariant Mass of Two ${{\mathit K}_S^0}$ Mesons near 1245 MeV
 PROKOSHKIN 1994
PD 39 420 Partial-Wave Analysis of ${{\mathit \pi}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \pi}^{0}}{{\mathit \pi}^{0}}{{\mathit n}}$ Reaction at 38 ${\mathrm {GeV/}}\mathit c$ Momentum in the Mass Range up to 1.9 GeV
 AGUILAR-BENITEZ 1991
ZPHY C50 405 Inclusive Particle Production in 400 ${\mathrm {GeV/}}\mathit c$ ${{\mathit p}}{{\mathit p}}$ Interactions
 AKER 1991
PL B260 249 Observation of a $2+{}^{+}{}^{}$ Resonance at 1515 MeV in Proton Antiproton Annihilation into 3${{\mathit \pi}^{0}}$
 AUGUSTIN 1989
NP B320 1 Study of the ${{\mathit J / \psi}}$ Decay into Five Pions
 ALDE 1987
PL B198 286 Neutral Mesons Decaying into 4${{\mathit \pi}^{0}}$
 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
 BINON 1983
NC 78A 313 Observation of Scalar ${{\mathit G}{(1590)}}$ Meson Decaying into ${{\mathit \eta}}{{\mathit \eta}}$
 CHABAUD 1983
NP B223 1 Experimental Indications for a $2+{}^{+}{}^{}$ non (${\mathit {\mathit q}}{\mathit {\overline{\mathit q}}}$) Object
 DENNEY 1983
PR D28 2726 Study of ${{\mathit K}^{+}}{{\mathit K}^{-}}$ Production in ${{\mathit \pi}^{+}}{{\mathit d}}$ Interactions at 10 ${\mathrm {GeV/}}\mathit c$ and Evidence for a $\mathit J{}^{P} = 7{}^{-}$ Resonance M(2750) Decaying into ${{\mathit K}^{+}}{{\mathit K}^{-}}{{\mathit \pi}^{+}}$
 APEL 1982
NP B201 197 Measurement of ${{\mathit \pi}^{-}}$ ${{\mathit p}}$ $\rightarrow$ 2 ${{\mathit \pi}^{0}}{{\mathit n}}$ at 25 ${\mathrm {GeV/}}\mathit c$
 CASON 1982
PRL 48 1316 Amplitude Analysis of the Reaction ${{\mathit \pi}^{+}}$ ${{\mathit \pi}^{-}}$ $\rightarrow$ ${{\mathit \pi}^{0}}{{\mathit \pi}^{0}}$ from 1.0 to 2.3 GeV
 GIDAL 1981
PL 107B 153 Observation of ${{\mathit S}^{*}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ in ${{\mathit \psi}}$ Decay
 CORDEN 1979
NP B157 250 An Amplitude Analysis of ${{\mathit \pi}}{{\mathit \pi}}$ Scattering from New Data on the Reaction ${{\mathit \pi}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit n}}$
 ANTIPOV 1977
NP B119 45 Boson States in the Reaction ${{\mathit \pi}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \pi}^{-}}{{\mathit \pi}^{-}}{{\mathit \pi}^{+}}{{\mathit p}}$ with Leading ${{\mathit \pi}^{+}}$ Meson at 25 ${\mathrm {GeV/}}\mathit c$
 DEUTSCHMANN 1976
NP B103 426 ${{\mathit \rho}^{0}}$ and ${{\mathit f}}$ Production in ${{\mathit \pi}^{+}}{{\mathit p}}$ Interactions
 APEL 1975
PL 57B 398 Observation of a Spin 4 Neutral Meson with 2 GeV Mass Decaying in ${{\mathit \pi}^{0}}{{\mathit \pi}^{0}}$
 ENGLER 1974
PR D10 2070 ${{\mathit \pi}}{{\mathit \pi}}$ Scattering in the Energy Region 0.6 to 1.42 GeV
 TAKAHASHI 1972
PR D6 1266 Further Aspects of the Reaction ${{\mathit \pi}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \pi}^{-}}{{\mathit \pi}^{+}}{{\mathit n}}$ at 8 ${\mathrm {GeV/}}\mathit c$
 FLATTE 1971
PL 34B 551 ${{\mathit f}^{0}}$ Mass Spectrum in 7 ${\mathrm {GeV/}}\mathit c$ ${{\mathit \pi}^{+}}{{\mathit p}}$ Interactions
 ARMENISE 1970
LNC 4 199 Nonstrange Boson Resonances Produced in ${{\mathit \pi}^{+}}{{\mathit d}}$ Interactions at 9 ${\mathrm {GeV/}}\mathit c$
 STUNTEBECK 1970
PL 32B 391 Evidence for Structure in the ${{\mathit f}^{0}}$ and ${{\mathit g}^{0}}$ Dipion Mass Regions
 ARMENISE 1968
NC 54A 999 Dipion System in ${{\mathit \pi}^{+}}{{\mathit d}}$ Interactions at 5.1 ${\mathrm {GeV/}}\mathit c$. Search for Epsilon Zero and G Quantum Numbers.
 BOESEBECK 1968
NP B4 501 Resonance Production in 8 ${\mathrm {GeV/}}\mathit c$ ${{\mathit \pi}^{+}}$ Interactions in Hydrogen.
 JOHNSON 1968
PR 176 1651 Compilation of ${{\mathit \pi}^{-}}{{\mathit p}}$ Data at 4 ${\mathrm {GeV/}}\mathit c$: Backward Resonance Production and ${{\mathit \pi}}{{\mathit \pi}}$ Scattering
see fit info