Single spin asymmetries in charged kaon production from semi-inclusive deep inelastic scattering on a transversely polarized<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mmultiscripts><mml:mi mathvariant="normal">He</mml:mi><mml:mprescripts/><mml:none/><mml:mn>3</mml:mn></mml:mmultiscripts></mml:math>target

We report the first measurement of target single spin asymmetries of charged kaons produced in semi-inclusive deep inelastic scattering of electrons off a transversely polarized $^{3}\mathrm{He}$ target. Both the Collins and Sivers moments, which are related to the nucleon transversity and Sivers distributions, respectively, are extracted over the kinematic range of $0.1&lt;{x}_{bj}&lt;0.4$ for ${K}^{+}$ and ${K}^{\ensuremath{-}}$ production. While the Collins and Sivers moments for ${K}^{+}$ are consistent with zero within the experimental uncertainties, both moments for ${K}^{\ensuremath{-}}$ favor negative values. The Sivers moments are compared to the theoretical prediction from a phenomenological fit to the world data. While the ${K}^{+}$ Sivers moments are consistent with the prediction, the ${K}^{\ensuremath{-}}$ results differ from the prediction at the 2-sigma level.