The A - dependence of $K^{0}$ and $Λ$ neutrinoproduction on nuclei

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dc.creatorAgababyan, N. M.
dc.creatorAmmosov, V. V.
dc.creatorAtayan, M.
dc.creatorGrigoryan, N.
dc.creatorGulkanyan, H.
dc.creatorIvanilov, A. A.
dc.creatorKaramyan, Zh.
dc.creatorKorotkov, V. A.
dc.date2005-04-14
dc.date.accessioned2026-07-07T11:04:33Z
dc.date.available2026-07-07T11:04:33Z
dc.descriptionFor the first time, the A- dependence of the production of $K^0$, $Λ$ and, for comparison, $π^-$ mesons is investigated in neutrinonuclear reactions, using the data obtained with SKAT bubble chamber. An exponential parametrization ($\sim A^β$) of the particle yields results in $β_{V^0} = 0.20 \pm 0.05$ for $V^0$ particles (combined $K^0$ and $Λ$), while for $π^-$ mesons the A- dependence is much weaker, $β_{π^-} = 0.068 \pm 0.007$. A nuclear enhancement of the ratio $K^0/π^-$ is found; this ratio increases from $0.055 \pm 0.013$ for $νN$- interactions up to $0.070 \pm 0.011$ at $A \approx 21$ and $0.099 \pm 0.011$ at $A \approx 45$. It is observed, that the multiplicity rise of $V^0$'s occures predominantely in the backward hemisphere of the hadronic c.m.s. It is shown, that the A- dependence of the nuclear enhancement of the $Λ^0$ and $π^-$ yields can be reproduced in the framework of a model, incorporating the secondary intranuclear interactions of pions originating from the primary $νN$- interactions, while only (29$\pm$9)% of that for $K^0$ at $A \approx 45$ can be attributed to intranuclear interactions.
dc.description18 pages, 8 figures
dc.identifierhttps://arxiv.org/abs/hep-ex/0504024
dc.identifierhttp://arxiv.org/abs/hep-ex/0504024
dc.identifierPhys.Atom.Nucl.70:1731-1738,2007
dc.identifierdoi:10.1134/S1063778807100080
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/188929
dc.subjectHigh Energy Physics - Experiment
dc.titleThe A - dependence of $K^{0}$ and $Λ$ neutrinoproduction on nuclei
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