Photoproduction of D Mesons

Technical Report · Mon Oct 01 04:00:00 EDT 1990

DOI:https://doi.org/10.2172/1855270· OSTI ID:1855270

Buchholz, D. ^[1]

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1. Northwestern Univ., Evanston, IL (United States); et al.

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 energy range from 100 GeV to 350 GeV. Preliminary results are also presented on the $$x_F$$ and $$p_T^2$$ distributions and the ratios of $$D^0/D^{*+}$$ 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 $$m_c ≃ 1.5 GeV$$ agrees well with the observed data within the theoretical uncertainties of the QCD parameters.

• Research Organization: Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)
• Sponsoring Organization: USDOE Office of Science (SC), High Energy Physics (HEP); National Science Foundation (NSF); Italian lstituto Nazionale di Fisica Nucleare; Ministero della Universita' e della Ricerca Scientifica
• Contributing Organization: E-687
• DOE Contract Number: AC02-07CH11359
• OSTI ID: 1855270
• Report Number(s): FERMILAB-FN-0555; oai:inspirehep.net:300996
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS