The yields of light meson resonances in neutrinonuclear interactions at <E_nu> = 10 GeV

TL;DR

This paper estimates the production rates of light meson resonances in neutrino-nuclear interactions at 10 GeV, analyzing their yields and decay contributions using bubble chamber data, and compares these with higher-energy results.

Contribution

It provides the first detailed estimates of light meson resonance yields in neutrino interactions at this energy, including hemisphere-specific yields and decay contributions.

Findings

Resonance yields increase nearly linearly with the mean mass of the hadronic system.

Yields of light meson resonances are quantified at 10 GeV neutrino energy.

Fraction of pions from resonance decays is estimated.

Abstract

The total yields of the all well-established light mesonic resonances (up to the $\phi$(1020) meson) are estimated in neutrinonuclear interactions at < E_nu > = 10 GeV, using the data obtained with SKAT bubble chamber. For some resonances, the yields in the forward and backward hemispheres in the hadronic c.m.s. are also extracted. From the comparison of the obtained and available higher-energy data, an indication is obtained that the resonance yields rise almost linearly as a function of the mean mass < W > of the neutrinoproduced hadronic system. The fractions of pions originating from the light resonance decays are inferred.