Study of the process $e^+e^-\to\eta\gamma$ in the center-of-mass energy range 1.07--2.00 GeV - INSPIRE

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Study of the process $e^+e^-\to\eta\gamma$ in the center-of-mass energy range 1.07--2.00 GeV

Dec 26, 2013

7 pages

Published in:

Phys.Rev.D 90 (2014) 3, 032002

Published: Aug 1, 2014

e-Print:

1312.7078 [hep-ex]

DOI:

10.1103/PhysRevD.90.032002

PDG:

{{\mathit \phi}{(1680)}}

\rightarrow

{{\mathit \eta}}{{\mathit \phi}}

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Abstract: (APS)

The e+e-→ηγ cross section has been measured in the center-of-mass energy range 1.07–2.00 GeV using the decay mode η→3π0, π0→γγ. The analysis is based on 36 pb-1 of integrated luminosity collected with the SND detector at the VEPP-2000 e+e- collider. The measured cross section of about 40 pb at 1.5 GeV is explained by decays of the ρ(1450) and ϕ(1680) resonances.

Note:

9 pages, 5 figures, 1 table

13.66.Bc
13.20.Gd
13.40.Hq
14.40.Be
cross section: measured
Novosibirsk VEPP-2000
decay modes
rho(1450): intermediate state
SND
electron positron: annihilation

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Figures(5)

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