First, measurements of K*(892) ± mesons production properties and their spin alignment in ν μ charged current (CC) and neutral current (NC) interactions are presented. The analysis of the full data sample of the NOMAD experiment is performed in different kinematic regions. For K* + and K* + mesons produced in ν μ CC interactions and decaying into K TV we have found the following yields per event: (2.6±0.2 (stat.) ± 0.2 (syst.))% and (1.6±0.1 (stat.) ±0.1 (syst.))% respectively, while for the K* + and K* + mesons produced in νNC interactions the corresponding yields per event are: (2.5± 0.3 (stat.)±0.3 (syst.))% and (1.0±0.3 (stat.) ±0.2 (syst.))%. The results obtained for the ρ 00 parameter, 0.40±0.06 (stat.) ± 0.03 (syst.) and 0.28±0.07 (stat.) ±0.03 (syst.) for K*(892) + and K*(892) - produced in ν μ CC interactions, are compared to theoretical predictions tuned on LEP measurements in e + e - annihilation at the Z 0 pole. For K*(892) + mesons produced in νNC interactions the measured ρ 00 parameter is 0.66±0.10 (stat.) ±0.05 (syst.).
ASJC Scopus subject areas
- Engineering (miscellaneous)
- Physics and Astronomy (miscellaneous)