Study of resonance formation in the mass region 1400−1500MeV through the reaction γγ→K<sup>0</sup><sub>S</sub>K<sup>±</sup>π∓

The K<sup>0</sup><sub>S</sub>K<sup>±</sup>π∓ final state in two-photon collisions is studied with the L3 detector at LEP at e+e− centre-of-mass energies from 183 to 209 GeV with an integrated luminosity of 664.6 pb<sup>−1</sup>. The η (1475) and f<s...

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Autores principales: Dova, María Teresa, L3 Collaboration
Formato: Articulo
Lenguaje:Inglés
Publicado: 2007
Materias:
Ciencias Exactas
Física
large electron positron collider
Resonancia
Fotones
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/81664
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-81664
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Exactas
Física
large electron positron collider
Resonancia
Fotones
spellingShingle Ciencias Exactas
Física
large electron positron collider
Resonancia
Fotones
Dova, María Teresa
L3 Collaboration
Study of resonance formation in the mass region 1400−1500MeV through the reaction γγ→K<sup>0</sup><sub>S</sub>K<sup>±</sup>π∓
topic_facet Ciencias Exactas
Física
large electron positron collider
Resonancia
Fotones
description The K<sup>0</sup><sub>S</sub>K<sup>±</sup>π∓ final state in two-photon collisions is studied with the L3 detector at LEP at e+e− centre-of-mass energies from 183 to 209 GeV with an integrated luminosity of 664.6 pb<sup>−1</sup>. The η (1475) and f<sub>1</sub>(1420) mesons are observed and their contribution is separated by measuring the formation rates as a function of the photon virtuality Q<sup>2</sup>. The η (1475) is found to be dominant for Q<sup>2</sup> ≤ 0.01 GeV<sup>2</sup> and its two-photon width is measured to be 0.23±0.05 (stat.) ±0.05 (sys.) keV. At higher Q<sup>2</sup>, the f<sup>−1</sup>(1420) is formed and decays to K*(892)K. The γγ coupling and form factor parameters of this state are measured to be Γγγ = 3.2 ± 0.6 (stat.) ± 0.7 (sys.) keV and Λ<sub>1</sub> = 926 ± 72 (stat.) ± 32 (sys.) MeV, respectively.
format Articulo
Articulo
author Dova, María Teresa
L3 Collaboration
author_facet Dova, María Teresa
L3 Collaboration
author_sort Dova, María Teresa
title Study of resonance formation in the mass region 1400−1500MeV through the reaction γγ→K<sup>0</sup><sub>S</sub>K<sup>±</sup>π∓
title_short Study of resonance formation in the mass region 1400−1500MeV through the reaction γγ→K<sup>0</sup><sub>S</sub>K<sup>±</sup>π∓
title_full Study of resonance formation in the mass region 1400−1500MeV through the reaction γγ→K<sup>0</sup><sub>S</sub>K<sup>±</sup>π∓
title_fullStr Study of resonance formation in the mass region 1400−1500MeV through the reaction γγ→K<sup>0</sup><sub>S</sub>K<sup>±</sup>π∓
title_full_unstemmed Study of resonance formation in the mass region 1400−1500MeV through the reaction γγ→K<sup>0</sup><sub>S</sub>K<sup>±</sup>π∓
title_sort study of resonance formation in the mass region 1400−1500mev through the reaction γγ→k<sup>0</sup><sub>s</sub>k<sup>±</sup>π∓
publishDate 2007
url http://sedici.unlp.edu.ar/handle/10915/81664
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