Detection of the production and decays of neutral charmed mesons in proton-nucleus interactions at 70 GeV with the SVD-2 facility

Journal Article · Wed Sep 15 04:00:00 EDT 2010 · Physics of Atomic Nuclei

DOI:https://doi.org/10.1134/S1063778810090085· OSTI ID:21426674

The results of processing the data of the SERP-E-184 experiment that studied mechanisms of the production of charmed particles in proton-nucleus interactions at 70 GeV and their decays are reported. The data were obtained in irradiating the SVD-2 active target consisting of carbon, silicon, and lead plates with a proton beam of energy 70 GeV. A signal from the two-body decay of neutral charmed mesons D{sup 0} and D{sup 0} is separated. The signal-to-background ratio is (51 {+-} 17)/(38 {+-} 13). A detailed simulation of relevant processes on the basis of the FRITIOF and GEANT codes made it possible to find meson-detection efficiencies and to evaluate the charm-production cross section at this energy: {sigma}(cc) = 7.1 {+-} 2.4(stat.) {+-} 1.4(syst.) {mu}b/nucleon.

• OSTI ID: 21426674
• Journal Information: Physics of Atomic Nuclei, Journal Name: Physics of Atomic Nuclei Journal Issue: 9 Vol. 73; ISSN 1063-7788; ISSN PANUEO
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BARYON-BARYON INTERACTIONS
BEAMS
BOSONS
CARBON
CHARM PARTICLES
CHARMED MESONS
CROSS SECTIONS
D MESONS
D NEUTRAL MESONS
DATA PROCESSING
DECAY
EFFICIENCY
ELEMENTARY PARTICLES
ELEMENTS
ENERGY RANGE
GEV RANGE
GEV RANGE 10-100
HADRON-HADRON INTERACTIONS
HADRONS
INTERACTIONS
LEAD
MANY-BODY PROBLEM
MESONS
METALS
NONMETALS
NUCLEON BEAMS
NUCLEON-NUCLEON INTERACTIONS
PARTICLE BEAMS
PARTICLE DECAY
PARTICLE INTERACTIONS
PLATES
PROCESSING
PROTON BEAMS
PROTON-NUCLEON INTERACTIONS
PSEUDOSCALAR MESONS
SEMIMETALS
SILICON
SIMULATION
TWO-BODY PROBLEM