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${{\mathit f}_{{{2}}}{(1270)}}$ WIDTH

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M005W

VALUE (MeV) EVTS DOCUMENT ID TECN  COMMENT $\bf{ 186.6 {}^{+2.8}_{-2.2}}$ OUR FIT  Error includes scale factor of 1.5. $\bf{ 185.8 {}^{+2.8}_{-2.1}}$ OUR AVERAGE  Error includes scale factor of 1.6.  See the ideogram below. $190.3$ $\pm1.9$ $\pm1.8$ 1 BOGOLYUBSKY 2013 SPEC 7${{\mathit \pi}^{+}}({{\mathit K}^{+}},{{\mathit p}}$) ${{\mathit A}}$ $\rightarrow$ ${{\mathit n}}{{\mathit \gamma}}{+}$ ${{\mathit X}}$ $175$ ${}^{+6}_{-4}$ $\pm10$ 2 ABLIKIM 2006 V BES2 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit J / \psi}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ $190$ $\pm20$ ABLIKIM 2005 BES2 ${{\mathit J / \psi}}$ $\rightarrow$ ${{\mathit \phi}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ $171$ $\pm10$ ALDE 1998 GAM4 100 ${{\mathit \pi}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \pi}^{0}}{{\mathit \pi}^{0}}{{\mathit n}}$ $192$ $\pm5$ 200k PROKOSHKIN 1994 GAM2 38 ${{\mathit \pi}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \pi}^{0}}{{\mathit \pi}^{0}}{{\mathit n}}$ $180$ $\pm24$ AGUILAR-BENIT.. 1991 EHS 400 ${{\mathit p}}{{\mathit p}}$ $169$ $\pm9$ 5730 3 AUGUSTIN 1989 DM2 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ 5 ${{\mathit \pi}}$ $150$ $\pm30$ $400$ 3 ALDE 1987 GAM4 100 ${{\mathit \pi}^{-}}$ ${{\mathit p}}$ $\rightarrow$ 4 ${{\mathit \pi}^{0}}{{\mathit n}}$ $186$ ${}^{+9}_{-2}$ 4 LONGACRE 1986 MPS 22 ${{\mathit \pi}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit n}}$2 ${{\mathit K}_S^0}$ $179.2$ ${}^{+6.9}_{-6.6}$ 5 CHABAUD 1983 ASPK 17 ${{\mathit \pi}^{-}}{{\mathit p}}$ polarized $160$ $\pm11$ DENNEY 1983 LASS 10 ${{\mathit \pi}^{+}}{{\mathit N}}$ $196$ $\pm10$ 3k APEL 1982 CNTR 25 ${{\mathit \pi}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit n}}$2 ${{\mathit \pi}^{0}}$ $152$ $\pm9$ 6 CASON 1982 STRC 8 ${{\mathit \pi}^{+}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \Delta}^{++}}{{\mathit \pi}^{0}}{{\mathit \pi}^{0}}$ $186$ $\pm27$ $11600$ GIDAL 1981 MRK2 ${{\mathit J / \psi}}$ decay $216$ $\pm13$ 7 CORDEN 1979 OMEG 12$-$15 ${{\mathit \pi}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit n}}$2 ${{\mathit \pi}}$ $190$ $\pm10$ 10k APEL 1975 NICE 40 ${{\mathit \pi}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit n}}$2 ${{\mathit \pi}^{0}}$ $192$ $\pm16$ 4600 ENGLER 1974 DBC 6 ${{\mathit \pi}^{+}}$ ${{\mathit n}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit p}}$ $183$ $\pm15$ 5300 FLATTE 1971 HBC 7 ${{\mathit \pi}^{+}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \Delta}^{++}}{{\mathit f}_{{{2}}}}$ $196$ $\pm30$ 3 STUNTEBECK 1970 HBC 8 ${{\mathit \pi}^{-}}{{\mathit p}}$, 5.4 ${{\mathit \pi}^{+}}{{\mathit d}}$ $216$ $\pm20$ 1960 3 ARMENISE 1968 DBC 5.1 ${{\mathit \pi}^{+}}$ ${{\mathit n}}$ $\rightarrow$ ${{\mathit p}}{{\mathit \pi}^{+}}$ MM${}^{-}$ $128$ $\pm27$ 3 BOESEBECK 1968 HBC 8 ${{\mathit \pi}^{+}}{{\mathit p}}$ $176$ $\pm21$ 8, 3 JOHNSON 1968 HBC 3.7$-$4.2 ${{\mathit \pi}^{-}}{{\mathit p}}$ • • We do not use the following data for averages, fits, limits, etc. • • $168$ $\pm7$ 9 KLEMPT 2022 RVUE ${{\mathit J / \psi}{(1S)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \pi}^{0}}{{\mathit \pi}^{0}}$ , ${{\mathit \gamma}}{{\mathit K}_S^0}$ ${{\mathit K}_S^0}$ $183$ $\pm2$ CARVER 2021 CLAS ${{\mathit \gamma}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \pi}^{0}}{{\mathit \pi}^{0}}{{\mathit p}}$ $195$ $\pm15$ 870 10 SCHEGELSKY 2006 A RVUE ${{\mathit \gamma}}$ ${{\mathit \gamma}}$ $\rightarrow$ ${{\mathit K}_S^0}$ ${{\mathit K}_S^0}$ $121$ $\pm26$ TIKHOMIROV 2003 SPEC 40.0 ${{\mathit \pi}^{-}}$ ${}^{}\mathrm {C}$ $\rightarrow$ ${{\mathit K}_S^0}$ ${{\mathit K}_S^0}$ ${{\mathit K}_L^0}$ X $187$ $\pm20$ 11 ALDE 1997 GAM2 450 ${{\mathit p}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit p}}{{\mathit p}}{{\mathit \pi}^{0}}{{\mathit \pi}^{0}}$ $184$ $\pm10$ 11 GRYGOREV 1996 SPEC 40 ${{\mathit \pi}^{-}}$ ${{\mathit N}}$ $\rightarrow$ ${{\mathit K}_S^0}$ ${{\mathit K}_S^0}$ X $200$ $\pm10$ AKER 1991 CBAR $0.0$ ${{\overline{\mathit p}}}$ ${{\mathit p}}$ $\rightarrow$ 3 ${{\mathit \pi}^{0}}$ $240$ $\pm40$ 3k BINON 1983 GAM2 38 ${{\mathit \pi}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit n}}$2 ${{\mathit \eta}}$ $187$ $\pm30$ 650 3 ANTIPOV 1977 CIBS 25 ${{\mathit \pi}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit p}}$3 ${{\mathit \pi}}$ $225$ $\pm38$ 16000 DEUTSCHMANN 1976 HBC 16 ${{\mathit \pi}^{+}}{{\mathit p}}$ $166$ $\pm28$ 600 3 TAKAHASHI 1972 HBC 8 ${{\mathit \pi}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit n}}$2 ${{\mathit \pi}}$ $173$ $\pm53$ 3 ARMENISE 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  Width errors enlarged by us to 4${}\Gamma /\sqrt {\mathit N }$; see the note with the ${{\mathit K}^{*}{(892)}}$ mass. 4  From a partial-wave analysis of data using a K-matrix formalism with 5 poles. 5  From an energy-independent partial-wave analysis. 6  From an amplitude analysis of the reaction ${{\mathit \pi}^{+}}$ ${{\mathit \pi}^{-}}$ $\rightarrow$ 2 ${{\mathit \pi}^{0}}$. 7  From an amplitude analysis of ${{\mathit \pi}^{+}}$ ${{\mathit \pi}^{-}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ scattering data. 8  JOHNSON 1968 includes BONDAR 1963, LEE 1964, DERADO 1965, EISNER 1967. 9  Fit of the tensor partial waves from BES3 in the multipole basis. 10  From analysis of L3 data at 91 and $183 - 209$ GeV. 11  Systematic uncertainties not estimated.

${{\mathit f}_{{{2}}}{(1270)}}$ width (MeV)

References

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