出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：Open charmed mesons produced in ultra-relativistic nuclear reactions are among the most direct probes to investigate the medium produced in these collisions. It is important to measure the production of as many charmed hadrons as possible, such as D0, D+, Ds, D and Lc, because the measurement of their relative yield can provide information on the hadronization mechanism. It will also reduce the systematic error on the total charm cross-section. The ALICE experiment at the LHC is designed to perform such measurements at mid-rapidity by means of its barrel tracking detectors. The study on exclusive reconstruction of D0, D+ and D+ mesons through their hadronic decay channels will be presented for pp collisions at 7 TeV. The first results on D-meson spectra and the D meson ratios will also be shown.
