Charged rho meson production in neutrino-induced reactions at E_nu = 10 GeV

Abstract

The neutrinoproduction of charged $\rho$ mesons on nuclei and nucleons is investigated for the first time at moderate energies ($<E_{\nu }>\approx$ 10 GeV), using the date obtained with SKAT bubble chamber. No strong nuclear effects are observed in ${\rho }^{+}$ and ${\rho }^{-}$ production. The fractions of charged and neutral pions originating from $\rho$ decays are obtained and compared with higher energy data. From analysis of the obtained and available data on ${\rho }^{+}$ and $K^{\ast +}$(892) neutrinoproduction, the strangeness suppression factor in the quark string fragmentation is extracted: ${\lambda }_s=0.18\pm 0.03$. Estimations are obtained for cross sections of quasiexclusive single ${\rho }^{+}$ and coherent ${\rho }^{+}$ neutrinoproduction on nuclei. The estimated coherent cross section ${\sigma }_{{\rho }^{+}}^{coh}$ = (0.29$\pm 0.16)\cdot 10^{-38}$ cm${}^2$ is compatible with theoretical predictions.

arXiv comment7 pages, 6 figures

Cited by in corpus (1)

• Hadronization Model Tuning in GENIE v3