# Charged kaon femtoscopic correlations in pp collisions at $\sqrt{s}=7$ TeV

Correlations of two charged identical kaons (K$^{\rm ch}$K$^{\rm ch}$) are measured in pp collisions at $\sqrt{s}=7$ TeV by the ALICE experiment at the Large Hadron Collider (LHC). One-dimensional K$^{\rm ch}$K$^{\rm ch}$ correlation functions are constructed in three multiplicity and four transverse momentum ranges. The K$^{\rm ch}$K$^{\rm ch}$ femtoscopic source parameters $R$ and $\lambda$ are extracted. The K$^{\rm ch}$K$^{\rm ch}$ correlations show a slight increase of femtoscopic radii with increasing multiplicity and a slight decrease of radii with increasing transverse momentum. These trends are similar to the ones observed for $\pi \pi$ and K$_{\rm s}^{\rm 0}$K$_{\rm s}^{\rm 0}$correlations in pp and heavy-ion collisions. However, the observed one dimensional correlation radii for charged kaons are larger at high multiplicities than those for pions in contrast to what was observed in heavy-ion collisions at RHIC.