Preliminary results are presented using the Wide Band photon beam at Fermilab to measure the cross-section of D*+/- and D+/- photoproduction on a Be target over the photon enera rsngs from 100 GeV to 350 GeV. Preliminary results are also presented on the xF and pT2 distributions and the ratios of D0/D*+ and D*-/D*+. The energy dependence of the total open charm cross-section of photoproduction was compared with the predictions by the photon-gluon fusion model and a higher order QCD radiative correction based on perturbative QCD. The prediction by the QCD radiative correction with Mc = 1.5GeV agrees well with the observed data within the theoretical uncertainties of the QCD parameters.
Photoproduction of D Mesons
BOCA, GIANLUIGI;VITULO, PAOLO;
1991-01-01
Abstract
Preliminary results are presented using the Wide Band photon beam at Fermilab to measure the cross-section of D*+/- and D+/- photoproduction on a Be target over the photon enera rsngs from 100 GeV to 350 GeV. Preliminary results are also presented on the xF and pT2 distributions and the ratios of D0/D*+ and D*-/D*+. The energy dependence of the total open charm cross-section of photoproduction was compared with the predictions by the photon-gluon fusion model and a higher order QCD radiative correction based on perturbative QCD. The prediction by the QCD radiative correction with Mc = 1.5GeV agrees well with the observed data within the theoretical uncertainties of the QCD parameters.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
