pdgLive

${{\mathit \rho}{(1700)}}$ MASS

${{\mathit \pi}}{{\mathit \pi}}$ MODE

INSPIRE JSON (beta) PDGID:

VALUE (MeV)

EVTS

DOCUMENT ID

TECN

COMMENT

• • We do not use the following data for averages, fits, limits, etc. • •

$1604.66$ $\pm30.8$

34M

CMD3

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

$1770.54$ $\pm5.49$

RVUE

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

$1718.50$ $\pm65.44$

RVUE

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

$1766.80$ $\pm52.36$

RVUE

${{\mathit \tau}^{-}}$ $\rightarrow$ ${{\mathit \pi}^{-}}{{\mathit \pi}^{0}}{{\mathit \nu}_{{{\tau}}}}$

$1644$ $\pm36$

20k

BABR

${{\mathit J / \psi}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \pi}^{0}}$

$1780$ $\pm20$ ${}^{+15}_{-20}$

63.5k

ZEUS

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

$1861$ $\pm17$

BABR

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

$1728$ $\pm17$ $\pm89$

5.4M

BELL

${{\mathit \tau}^{-}}$ $\rightarrow$ ${{\mathit \pi}^{-}}{{\mathit \pi}^{0}}{{\mathit \nu}_{{{\tau}}}}$

$1780$ ${}^{+37}_{-29}$

CBAR

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

$1719$ $\pm15$

OBLX

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

$1730$ $\pm30$

RVUE

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

$1768$ $\pm21$

DM2

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

$1745.7$ $\pm91.9$

RVUE

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

$1546$ $\pm26$

RVUE

$1650$

RVUE

20$-$70 ${{\mathit \gamma}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \pi}}$

$1550$ $\pm70$

HYBR

20 ${{\mathit \gamma}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit p}}$

$1590$ $\pm20$

OMEG

20$-$70 ${{\mathit \gamma}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit p}}$2 ${{\mathit \pi}}$

$1600$ $\pm10$

SPEC

50 ${{\mathit \gamma}}$ ${}^{}\mathrm {C}$ $\rightarrow$ ${}^{}\mathrm {C}$ 2 ${{\mathit \pi}}$

$1598$ ${}^{+24}_{-22}$

ASPK

17 ${{\mathit \pi}^{-}}{{\mathit p}}$ polarized

$1659$ $\pm25$

RVUE

$1575$

RVUE

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

$1610$ $\pm30$

RVUE

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

$1590$ $\pm20$

ASPK

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

¹

From a fit of the pion form factor using the GOUNARIS 1968 parametrization with the complex phase of the ${{\mathit \rho}}−{{\mathit \omega}}$ interference leaving ${{\mathit \rho}{(1450)}}$, ${{\mathit \rho}{(1700)}}$ resonances as free parameters of the fit. The fit uses also data from CMD-2 and DM2 experiments. Systematic errors not estimated.

²	Applies the Unitary $\&$ Analytic Model of the pion electromagnetic form factor of DUBNICKA 2010 to analyze the data of LEES 2012G and ABLIKIM 2016C.

³	Applies the Unitary $\&$ Analytic Model of the pion electromagnetic form factor of DUBNICKA 2010 to analyze the data of ACHASOV 2006, AKHMETSHIN 2007, AUBERT 2009AS, and AMBROSINO 2011A.

⁴	Applies the Unitary $\&$ Analytic Model of the pion electromagnetic form factor of DUBNICKA 2010 to analyze the data of FUJIKAWA 2008.

⁵	From a Dalitz plot analysis in an isobar model with ${{\mathit \rho}{(1450)}}$ and ${{\mathit \rho}{(1700)}}$ masses and widths floating.

⁶	Using the KUHN 1990 parametrization of the pion form factor, neglecting ${{\mathit \rho}}−{{\mathit \omega}}$ interference.

⁷	Using the GOUNARIS 1968 parametrization of the pion form factor leaving the masses and widths of the ${{\mathit \rho}{(1450)}}$, ${{\mathit \rho}{(1700)}}$, and ${{\mathit \rho}{(2150)}}$ resonances as free parameters of the fit.

⁸	$\vert \mathit F_{{{\mathit \pi}}}(0)\vert ^2$ fixed to 1.

⁹	From the GOUNARIS 1968 parametrization of the pion form factor.

¹⁰	T-matrix pole.

¹¹	From phase shift analysis of HYAMS 1973 data.

¹²	Simple relativistic Breit-Wigner fit with constant width.

¹³	An additional 40 MeV uncertainty in both the mass and width is present due to the choice of the background shape.

¹⁴	Included in BECKER 1979 analysis.

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