The Decay rho0 ---> pi0 pi0 gamma and the role of sigma meson

Gokalp, A.; Yilmaz, O.

doi:10.1016/S0370-2693(01)00311-2

The Decay rho0 ---> pi0 pi0 gamma and the role of sigma meson

Jun, 2000

12 pages

Published in:

Phys.Lett.B 508 (2001) 25-30

e-Print:

nucl-th/0006044 [nucl-th]

DOI:

10.1016/S0370-2693(01)00311-2

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Abstract:

We study the radiative decay

\rho^{0}\to\pi^{0}\pi^{0}\gamma

within the framework of a phenomenological approach in which the contributions of

\sigma

-meson and

\omega

-meson intermediate states and of the pion-loops are considered. We conclude that the

\sigma

-meson amplitude provides the dominant contribution.

12.20.Ds
13.40.Hq
rho(770)0: radiative decay
pi0: pair production
f0(600): exchange
omega(783): exchange
Feynman graph: higher-order
effective Lagrangian
rho(770)0: width
f0(600): mass

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