${\Gamma}_{{\mathit \rho}{(770)}^{0}}–{\Gamma}_{{\mathit \rho}{(770)}^{\pm}}$ INSPIRE search

M009W6

VALUE (MeV)

EVTS

DOCUMENT ID

TECN

COMMENT

$\bf{ 0.3 \pm1.3}$

OUR AVERAGE Error includes scale factor of 1.4.

$-0.2$ $\pm1.0$

SCHAEL

2005

ALEP

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

$3.6$ $\pm1.8$ $\pm1.7$

1.98M

ALOISIO

2003

KLOE

1.02 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \pi}^{0}}$

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

$4.66$ $\pm0.85$

BARTOS

2017

RVUE

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

¹ From the combined fit of the ${{\mathit \tau}^{-}}$ data from ANDERSON 2000A and SCHAEL 2005C and ${{\mathit e}^{+}}{{\mathit e}^{-}}$ data from the compilation of BARKOV 1985, AKHMETSHIN 2004, and ALOISIO 2005. Supersedes BARATE 1997M.

² Assuming ${\mathit m}_{{{\mathit \rho}^{+}}}$ = ${\mathit m}_{{{\mathit \rho}^{-}}}$, $\Gamma _{{{\mathit \rho}^{+}}}$ = $\Gamma _{{{\mathit \rho}^{-}}}$.

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, AMBROSINO 2011A, and FUJIKAWA 2008.

References:

BARTOS

2017A

IJMP A32 1750154

The Mass and Width Differences of the Neutral and Charged ${{\mathit \rho}{(770)}}$, ${{\mathit \rho}{(1450 )}}$ and ${{\mathit \rho}{(1700)}}$ Mesons from ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ and ${{\mathit \nu}}{{\mathit \tau}}{{\mathit \pi}^{-}}{{\mathit \pi}^{0}}$ Processes

SCHAEL

2005C

PRPL 421 191

Branching Ratios and Spectral Functions of ${{\mathit \tau}}$ Decays: Final ALEPH Measurements and Physics Implications

ALOISIO

2003

PL B561 55

Study of the Decay ${{\mathit \phi}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \pi}^{0}}$ with the Detector