Formation of light resonances in $K^{0}_{S}K^{pm}K^{mp}$ and $\eta\pi^{+}\pi^{-}$ channels in $\gamma\gamma$ collisions at LEP

The K/sub S//sup 0/ K/sup +or-/ pi /sup -or+/ and eta pi /sup +/ pi /sup -/ final states in two-photon collisions are studied with the L3 detector at LEP using data collected at centre of mass energies from 183 to 202 GeV. The mass spectrum of the K/sub S//sup 0/ K/sup +or-/ pi /sub -or+/ final stat...

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Detalles Bibliográficos
Autor principal: Vodopyanov, I
Lenguaje:eng
Publicado: 2000
Materias:
Particle Physics
Acceso en línea:http://cds.cern.ch/record/494677
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author Vodopyanov, I
author_facet Vodopyanov, I
author_sort Vodopyanov, I
collection CERN
description The K/sub S//sup 0/ K/sup +or-/ pi /sup -or+/ and eta pi /sup +/ pi /sup -/ final states in two-photon collisions are studied with the L3 detector at LEP using data collected at centre of mass energies from 183 to 202 GeV. The mass spectrum of the K/sub S//sup 0/ K/sup +or-/ pi /sub -or+/ final state shows an enhancement around 1470 MeV, which is identified with the pseudoscalar eta (1440). This state is observed in the gamma gamma collisions for the first time and the value of its two-photon width is obtained. In the eta pi /sup +/ pi /sup -/ channel only the f/sub 1/(1285) is observed, upper limits for the formation of eta (1440) and eta (1295) are given. (6 refs).
id cern-494677
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2000
record_format invenio
spelling cern-4946772019-09-30T06:29:59Zhttp://cds.cern.ch/record/494677engVodopyanov, IFormation of light resonances in $K^{0}_{S}K^{pm}K^{mp}$ and $\eta\pi^{+}\pi^{-}$ channels in $\gamma\gamma$ collisions at LEPParticle PhysicsThe K/sub S//sup 0/ K/sup +or-/ pi /sup -or+/ and eta pi /sup +/ pi /sup -/ final states in two-photon collisions are studied with the L3 detector at LEP using data collected at centre of mass energies from 183 to 202 GeV. The mass spectrum of the K/sub S//sup 0/ K/sup +or-/ pi /sub -or+/ final state shows an enhancement around 1470 MeV, which is identified with the pseudoscalar eta (1440). This state is observed in the gamma gamma collisions for the first time and the value of its two-photon width is obtained. In the eta pi /sup +/ pi /sup -/ channel only the f/sub 1/(1285) is observed, upper limits for the formation of eta (1440) and eta (1295) are given. (6 refs).oai:cds.cern.ch:4946772000
spellingShingle Particle Physics
Vodopyanov, I
Formation of light resonances in $K^{0}_{S}K^{pm}K^{mp}$ and $\eta\pi^{+}\pi^{-}$ channels in $\gamma\gamma$ collisions at LEP
title Formation of light resonances in $K^{0}_{S}K^{pm}K^{mp}$ and $\eta\pi^{+}\pi^{-}$ channels in $\gamma\gamma$ collisions at LEP
title_full Formation of light resonances in $K^{0}_{S}K^{pm}K^{mp}$ and $\eta\pi^{+}\pi^{-}$ channels in $\gamma\gamma$ collisions at LEP
title_fullStr Formation of light resonances in $K^{0}_{S}K^{pm}K^{mp}$ and $\eta\pi^{+}\pi^{-}$ channels in $\gamma\gamma$ collisions at LEP
title_full_unstemmed Formation of light resonances in $K^{0}_{S}K^{pm}K^{mp}$ and $\eta\pi^{+}\pi^{-}$ channels in $\gamma\gamma$ collisions at LEP
title_short Formation of light resonances in $K^{0}_{S}K^{pm}K^{mp}$ and $\eta\pi^{+}\pi^{-}$ channels in $\gamma\gamma$ collisions at LEP
title_sort formation of light resonances in $k^{0}_{s}k^{pm}k^{mp}$ and $\eta\pi^{+}\pi^{-}$ channels in $\gamma\gamma$ collisions at lep
topic Particle Physics
url http://cds.cern.ch/record/494677
work_keys_str_mv AT vodopyanovi formationoflightresonancesink0skpmkmpandetapipichannelsingammagammacollisionsatlep

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