Properties of neutral charmed mesons in pA interactions at 70 GeV

Journal Article · Tue Feb 15 04:00:00 EST 2011 · Physics of Atomic Nuclei

DOI:https://doi.org/10.1134/S1063778811020189· OSTI ID:22029966

The results of data handling for the E-184 experiment involving the irradiation of the active target, consisting of carbon, silicon, and lead plates by a 70-GeV proton beam are presented. When the two-prong neutral charmed meson decay signal was selected and the cross section for charm production at a near-threshold energy was estimated ({sigma}(cc-bar) = 7.1 {+-} 2.4(stat.) {+-} 1.4(syst.) Micro-Sign b/nucleon), some properties of D{sup 0} and D-bar{sup 0} were investigated. These include the atomic-weight dependence of the cross section on the target mass number (its A dependence); the differential cross sections d{sigma}/dp{sub t}{sup 2} and d{sigma}/dx{sub F}; and the dependence of the parameter {alpha} on x{sub F}, p{sub t}{sup 2}, and p{sub lab}. The experimental results are compared with the predictions of the FRITIOF7.02 program.

• OSTI ID: 22029966
• Journal Information: Physics of Atomic Nuclei, Journal Name: Physics of Atomic Nuclei Journal Issue: 2 Vol. 74; ISSN 1063-7788; ISSN PANUEO
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
CARBON 12 TARGET
COMPARATIVE EVALUATIONS
COMPUTERIZED SIMULATION
D NEUTRAL MESONS
DIFFERENTIAL CROSS SECTIONS
F CODES
GEV RANGE
LEAD 208 TARGET
NUCLEONS
PARTICLE DECAY
PARTICLE INTERACTIONS
PROTON BEAMS
SILICON 28 TARGET
THRESHOLD ENERGY