Diffractively produced charm final states in 800-GeV/c pp collisions

M H Wang; M C Berisso; D C Christian; J Félix; A Gara; E Gottschalk; G Gutiérrez; E P Hartouni; B C Knapp; M N Kreisler; S Lee; K Markianos; G Moreno; M A Reyes; M Sosa; A Wehmann; D Wesson

doi:10.1103/PhysRevLett.87.082002

Diffractively produced charm final states in 800-GeV/c pp collisions

Phys Rev Lett. 2001 Aug 20;87(8):082002. doi: 10.1103/PhysRevLett.87.082002. Epub 2001 Aug 7.

Authors

M H Wang¹, M C Berisso, D C Christian, J Félix, A Gara, E Gottschalk, G Gutiérrez, E P Hartouni, B C Knapp, M N Kreisler, S Lee, K Markianos, G Moreno, M A Reyes, M Sosa, A Wehmann, D Wesson

Affiliation

¹ University of Massachusetts, Amherst, 01003, USA.

PMID: 11497936
DOI: 10.1103/PhysRevLett.87.082002

Abstract

We report the first observation of diffractively produced open charm in 800-GeV/c pp collisions of the type pp-->pD*X. We measure cross sections of sigma(diff)(D*+) = (0.185+/-0.044+/-0.054) (mu)b and sigma(diff)(D(*-)) = (0.174+/-0.034+/-0.029) (mu)b. Our measurements are based on 4.3x10(9) events recorded by FNAL E690 in the fixed-target run of 1991. We compare our results with previous fixed-target charm experiments.