Measurement of the $\eta\to 3\pi^{0}$ slope parameter $\alpha$ with the KLOE detector - INSPIRE

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Measurement of the $\eta\to 3\pi^{0}$ slope parameter $\alpha$ with the KLOE detector

KLOE

Collaboration

•

F. Ambrosino
(
- Naples U. and
- INFN, Naples
)

Apr, 2010

14 pages

Published in:

Phys.Lett.B 694 (2011) 16-21

e-Print:

1004.1319 [hep-ex]

DOI:

10.1016/j.physletb.2010.09.022

PDG:

\alpha

{{\mathit \eta}}

\rightarrow

{{\mathit \pi}^{0}}

View in:

ADS Abstract Service

reference search48 citations

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Abstract: (Elsevier)

We present a measurement of the slope parameter α for the η→3π0 decay, with the KLOE experiment at the DAΦNE ϕ -factory, based on a background free sample of ∼17 million η mesons produced in ϕ radiative decays. By fitting the event density in the Dalitz plot we determine α=−0.0301±0.0035stat−0.0035+0.0022syst . The result is in agreement with recent measurements from hadro- and photo-production experiments.

Note:

14 pages, 11 figures

12.15.Ff
13.25.JX
14.40.Aq
e + e - collisions
phi radiative decays
eta decays
e+e− collisions
ϕ radiative decays
η decays
[formula omitted] collisions

References(23)

Figures(11)

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KLOE

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F. Ambrosino
(
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)

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