We present results on the production of high transverse momentum charm mesons in collisions of 515 GeV/[Formula presented] negative pions with beryllium and copper targets. The experiment recorded a large sample of events containing high transverse momentum [Formula presented] showers detected in an electromagnetic calorimeter. From these data, a sample of charm mesons has been reconstructed via their decay into the fully charged [Formula presented] mode. A measurement of the single inclusive transverse momentum distribution of charged [Formula presented] mesons from 1 to 8 GeV/[Formula presented] is presented. An extrapolation of the measured differential cross section yields an integrated [Formula presented] cross section of [Formula presented](syst) μb per nucleon for [Formula presented] mesons with [Formula presented]. The data are compared with expectations based upon next-to-leading-order perturbative QCD, as well as with results from PYTHIA. We also compare our integrated [Formula presented] cross section with measurements from other experiments.
|Original language||English (US)|
|Number of pages||16|
|Journal||Physical Review D - Particles, Fields, Gravitation and Cosmology|
|State||Published - 1997|
ASJC Scopus subject areas
- Nuclear and High Energy Physics
- Physics and Astronomy (miscellaneous)