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Inclusive $\pi^{0}$ and $K^{0}_{s}$ in $\gamma-\gamma$ at L3

The ee -> ee+pi0+X and ee -> ee+K0s+X reactions are studied at LEP using data collected with the L3 detector at sqrt{s}=189-202 GeV. Preliminary results for the differential cross section dsigma/dpt in the transverse momentum range 0.2 GeV < pt < 7.5 GeV at central values of pseudo-rapid...

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Detalles Bibliográficos
Autor principal: Achard, Pablo
Lenguaje:eng
Publicado: 2000
Materias:
Acceso en línea:https://dx.doi.org/10.1063/1.1402834
http://cds.cern.ch/record/468502
Descripción
Sumario:The ee -> ee+pi0+X and ee -> ee+K0s+X reactions are studied at LEP using data collected with the L3 detector at sqrt{s}=189-202 GeV. Preliminary results for the differential cross section dsigma/dpt in the transverse momentum range 0.2 GeV < pt < 7.5 GeV at central values of pseudo-rapidity, |eta| < 0.5 or |eta| < 1.5, and the differential cross section dsigma/d|eta| for different values of pt are presented. For pt le 1 GeV, the pt -dependence of the data are well described by an exponential fit. For pt > 1 GeV the cross sections are compared to NLO QCD calculations and to LO Monte Carlo predictions.