Constraints of unparticle physics parameters from $K^0-{\bar{K}}^0$ mixing

Abstract

The neutral kaon meson mixing plays an important role in test of the Standard Model (SM) and new physics beyond it. Scale invariant unparticle physics induces a flavor changing neutral current (FCNC) transition of $K^0-{\bar{K}}^0$ oscillation at the tree level. In this study, we investigate the scale invariant unparticle physics effects on the $K^0-{\bar{K}}^0$ mixing. Based on the current experimental data, we give constraints of $K^0-{\bar{K}}^0$ mixing on the unparticle parameters.

Comments: 13 pages, 5 figures, one author is added, the paper will appear in Chinese Physics C