Partial widths for the decays $\eta(1295) \to \gamma\gamma$ and $\eta(1440) \to \gamma\gamma$

We discuss gamma gamma partial widths of pseudoscalar/isoscalar mesons eta(M) in the mass region M = 1000-1500 MeV. The transition amplitudes eta(1295) -> gamma gamma and eta(1440) -> gamma gamma are studied within an assumption that the decaying mesons are the members of the first radial exci...

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Detalles Bibliográficos
Autores principales: Anisovich, A.V., Anisovich, V.V., Nikonov, V.A., Montanet, L.
Lenguaje:eng
Publicado: 1999
Materias:
Particle Physics - Phenomenology
Acceso en línea:https://dx.doi.org/10.1007/s100500050342
http://cds.cern.ch/record/403554
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author Anisovich, A.V.
Anisovich, V.V.
Nikonov, V.A.
Montanet, L.
author_facet Anisovich, A.V.
Anisovich, V.V.
Nikonov, V.A.
Montanet, L.
author_sort Anisovich, A.V.
collection CERN
description We discuss gamma gamma partial widths of pseudoscalar/isoscalar mesons eta(M) in the mass region M = 1000-1500 MeV. The transition amplitudes eta(1295) -> gamma gamma and eta(1440) -> gamma gamma are studied within an assumption that the decaying mesons are the members of the first radial excitation nonet 2^1S_0 keV are dominantly due to the n\bar n meson component while the contribution of the s\bar s component is small.
id cern-403554
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 1999
record_format invenio
spelling cern-4035542023-03-14T19:57:37Zdoi:10.1007/s100500050342http://cds.cern.ch/record/403554engAnisovich, A.V.Anisovich, V.V.Nikonov, V.A.Montanet, L.Partial widths for the decays $\eta(1295) \to \gamma\gamma$ and $\eta(1440) \to \gamma\gamma$Particle Physics - PhenomenologyWe discuss gamma gamma partial widths of pseudoscalar/isoscalar mesons eta(M) in the mass region M = 1000-1500 MeV. The transition amplitudes eta(1295) -> gamma gamma and eta(1440) -> gamma gamma are studied within an assumption that the decaying mesons are the members of the first radial excitation nonet 2^1S_0 keV are dominantly due to the n\bar n meson component while the contribution of the s\bar s component is small.We discuss gamma gamma partial widths of pseudoscalar/isoscalar mesons eta(M) in the mass region M = 1000-1500 MeV. The transition amplitudes eta(1295) -> gamma gamma and eta(1440) -> gamma gamma are studied within an assumption that the decaying mesons are the members of the first radial excitation nonet 2^1S_0 q\bar q. The calculations show that partial widths being of the order of 0.1 keV are dominantly due to the n\bar n meson component while the contribution of the s\bar s component is small.hep-ph/9910321oai:cds.cern.ch:4035541999
spellingShingle Particle Physics - Phenomenology
Anisovich, A.V.
Anisovich, V.V.
Nikonov, V.A.
Montanet, L.
Partial widths for the decays $\eta(1295) \to \gamma\gamma$ and $\eta(1440) \to \gamma\gamma$
title Partial widths for the decays $\eta(1295) \to \gamma\gamma$ and $\eta(1440) \to \gamma\gamma$
title_full Partial widths for the decays $\eta(1295) \to \gamma\gamma$ and $\eta(1440) \to \gamma\gamma$
title_fullStr Partial widths for the decays $\eta(1295) \to \gamma\gamma$ and $\eta(1440) \to \gamma\gamma$
title_full_unstemmed Partial widths for the decays $\eta(1295) \to \gamma\gamma$ and $\eta(1440) \to \gamma\gamma$
title_short Partial widths for the decays $\eta(1295) \to \gamma\gamma$ and $\eta(1440) \to \gamma\gamma$
title_sort partial widths for the decays $\eta(1295) \to \gamma\gamma$ and $\eta(1440) \to \gamma\gamma$
topic Particle Physics - Phenomenology
url https://dx.doi.org/10.1007/s100500050342
http://cds.cern.ch/record/403554
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AT anisovichvv partialwidthsforthedecayseta1295togammagammaandeta1440togammagamma
AT nikonovva partialwidthsforthedecayseta1295togammagammaandeta1440togammagamma
AT montanetl partialwidthsforthedecayseta1295togammagammaandeta1440togammagamma

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