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

N. M. Agababyan·V. V. Ammosov·M. Atayan·N. Grigoryan·H. Gulkanyan·A. A. Ivanilov·Zh. Karamyan·V. A. Korotkov
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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 $E_ν$ = 3-30 GeV) at Serpukhov accelerator. Dependences of $ $ 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 $ $ 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 $< ν< 9$ GeV). At higher $W$ or $ν$, no influence of nuclear effects on $ $ 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.

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N. M. Agababyan, V. V. Ammosov, M. Atayan, N. Grigoryan, H. Gulkanyan, A. A. Ivanilov, Zh. Karamyan, V. A. Korotkov. 2003-10-06. A study of the nuclear medium influence on transverse momentum of hadrons produced in deep inelastic neutrino scattering. https://doi.org/10.1134/1.1992571

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