Charm photoproduction

Journal Article · Mon Jan 30 04:00:00 EST 1989 · Phys. Rev. Lett.; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.62.513· OSTI ID:6531925

Anjos, J C; Appel, J A; Bean, A; Bracker, S B; Browder, T E; Cremaldi, L M; Elliott, J R; Escobar, C O; Estabrooks, P; Gibney, M C; others, and

We present results on the photoproduction of 10 000 charmed particles from the 10/sup 8/ recorded triggers of Fermilab experiment E691. The total cross section for the photoproduction of D/sup 0/ and D/sup +/ particles (and antiparticles) for x/sub F/>0.2 is measured to be 3.88 +- 0.06 +- 0.40 ..mu..b/Be nucleus at = 145 GeV. We have also measured the relative production of different charmed particles, their p/sub T//sup 2/ and x/sub F/ distributions, and the energy dependence of the total charm cross section. The mean p/sub T//sup 2/ is 1.16 +- 0.04 GeV/sup 2//c/sup 2/ and the ratio of charm cross sections at 200 and 100 GeV is 1.96 +- 0.24. Results of fits to the x/sub F/ distribution are also reported.

• Research Organization: University of California, Santa Barbara, California 93106
• OSTI ID: 6531925
• Journal Information: Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 62:5; ISSN PRLTA
• Country of Publication: United States
• Language: English

Related Subjects

645102* -- High Energy Physics-- Particle Interactions & Properties-Experimental-- Weak Interactions & Properties
651320 -- Nuclear Properties & Reactions
A=6-19
Experimental
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BARYONS
BERYLLIUM 9 TARGET
BOSONS
CHARM PARTICLES
CHARMED MESONS
CROSS SECTIONS
D MESONS
D NEUTRAL MESONS
D PLUS MESONS
D S MESONS
DATA
DECAY
ELEMENTARY PARTICLES
ENERGY DEPENDENCE
ENERGY RANGE
EXPERIMENTAL DATA
FERMIONS
GEV RANGE
GEV RANGE 10-100
GEV RANGE 100-1000
HADRONIC PARTICLE DECAY
HADRONS
INFORMATION
KAONS
KAONS MINUS
LAMBDA C PLUS
LINEAR MOMENTUM
MESONS
NUCLEAR REACTIONS
NUMERICAL DATA
PARTICLE DECAY
PARTICLE PRODUCTION
PHI-1020 MESONS
PHOTONUCLEAR REACTIONS
PIONS
PIONS MINUS
PIONS PLUS
PSEUDOSCALAR MESONS
QUARKONIUM
STRANGE MESONS
STRANGE PARTICLES
STRANGEONIUM
TARGETS
TOTAL CROSS SECTIONS
TRANSVERSE MOMENTUM
VECTOR MESONS