Dalitz Plot Analysis of the Decay $\omega \rightarrow \pi^{+}\pi^{-}\pi^{0}$ - INSPIRE

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Dalitz Plot Analysis of the Decay $\omega \rightarrow \pi^{+}\pi^{-}\pi^{0}$

BESIII

Collaboration

Nov 9, 2018

9 pages

Published in:

Phys.Rev.D 98 (2018) 11, 112007

Published: Dec 19, 2018

e-Print:

1811.03817 [hep-ex]

DOI:

10.1103/PhysRevD.98.112007

PDG: ENERGY DEPENDENCE OF

{{\mathit \omega}}

\rightarrow

{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \pi}^{0}}

Experiments:

BEPC-BES-III

View in:

reference search28 citations

Citations per year

Abstract: (APS)

Using a low-background sample of 2.6×105 J/ψ→ωη(ω→π+π-π0,η→γγ) events, about 5 times larger statistics than previous experiments, we present a Dalitz plot analysis of the decay ω→π+π-π0. It is found that the Dalitz plot distribution differs from the pure P-wave phase space with a statistical significance of 18.9σ. The parameters from the fit to data are in reasonable agreement with those without the cross-channel effect within the dispersive framework, which indicates that the cross-channel effect in ω→π+π-π0 is not significant.

Note:

9 pages, 9 figures

Particle Physics Experiments
electron positron: annihilation
electron positron: colliding beams
J/psi(3100): hadronic decay
omega(783): hadronic decay
eta: radiative decay
Dalitz plot
mass spectrum: (pi+ pi- pi0)
mass spectrum: (pi+ pi-)
mass spectrum: (pi0 pi+)

References(20)

Figures(9)

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