A study of the nuclear medium influence on transverse momentum of hadrons produced in deep inelastic neutrino scattering

Abstract

The influence of nuclear effects on the transverse momentum $(p_T)$ distributions of neutrinoproduced hadrons is investigated using the data obtained with SKAT propane-freon bubble chamber irradiated in the neutrino beam (with $E_{\nu }$ = 3-30 GeV) at Serpukhov accelerator. Dependences of $<p_T^2>$ on the kinematical variables of inclusive deep-inelastic scattering and of the produced hadrons are measured. It has been observed, that the nuclear effects cause an enhancement of $<p_T^2>$ of hadrons (more pronounced for the positively charged ones) produced in the target fragmentation region at low invariant mass of the hadronic system (2 $<W<$ 4 GeV) or at low energies transferred to the current quark (2 $<\nu <9$ GeV). At higher $W$ or $\nu$, no influence of nuclear effects on $<p_T^2>$ is observed. Measurement results are compared with predictions of a simple model, incorporating secondary intranuclear interactions of hadrons (with a formation length extracted from the Lund fragmentation model), which qualitatively reproduces the main features of the data.

23 pages, 7 figures

References in corpus (2)

• Hadron Formation in Deep-Inelastic Positron Scattering in a Nuclear Environment
• Quark fragmentation to ${\pi }^{\pm }$, ${\pi }^0$, $K^{\pm }$, $p$ and $\bar{p}$ in the nuclear environment