Ks0Ks0 final state in two-photon collisions and implications for glueballs

L3 Collaboration

doi:10.1016/S0375-9474(99)00194-3

Scientific article

English

K_s⁰K_s⁰ final state in two-photon collisions and implications for glueballs

ContributorsL3 Collaboration

CollaboratorsAchard, Pablo; Ambrosi, Giovanni; Bourquin, Maurice; Braccini, Saverio; Chamizo Llatas, Maria; Deglon, Patrick; Delmeire, Evelyne; Extermann, Pierre; Field, John; Kienzle, Maria-Novella; Malgeri, Luca; Pohl, Martin

Published inPhysics letters. B, vol. 501, no. 1-2, p. 173-182

Publication date2001

Abstract

The Ks0Ks0 final state in two-photon collisions is studied with the L3 detector at LEP using data at centre of mass energies from 91 GeV to 183 GeV. The Ks0Ks0 mass spectrum is dominated by the formation of the f2′(1525) tensor meson whose two-photon partial width is measured. Clear evidence for destructive f2-a2 interference is observed. No signal is present in the region around 2.2 GeV. An upper limit for the two-photon partial width times the Ks0Ks0 branching ratio of the ξ(2230) glueball candidate is then derived. An enhancement is observed around 1750 MeV. It may be due to the formation of a radial recurrence of the f2′(1525) or to the member of the 0++ meson nonet.

Affiliation entities

Faculté des sciences / Section de physique / Département de physique nucléaire et corpusculaire

Citation (ISO format)

L3 Collaboration. K_s⁰K_s⁰ final state in two-photon collisions and implications for glueballs. In: Physics letters. B, 2001, vol. 501, n° 1-2, p. 173–182. doi: 10.1016/S0375-9474(99)00194-3

Article (Published version)

Identifiers

PID : unige:44043
DOI : 10.1016/S0375-9474(99)00194-3

Additional URL for this publicationhttp://www.sciencedirect.com/science/article/pii/S0375947499001943

Journal ISSN0370-2693

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Ks0Ks0 final state in two-photon collisions and implications for glueballs

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K_s⁰K_s⁰ final state in two-photon collisions and implications for glueballs