The effects of a family non-universal image boson in the image, image, ρK decays and image–image mixing Original Research Article

We revisit image, image and ρK decays within QCDF formalism and examine the possible effects of a family non-universal image boson in these decays. In our evaluations, the strong constraints from image–image mixing on the strength of the left-handed flavor-changing d–b–image coupling image (image) is also included. Numerically, we find that a new weak phase image involved in image, the negative combination of the u–u–image and d–d–image couplings image and/or image with larger absolute value are crucial to improve the agreement of image between the SM prediction and the experimental measurement. Generally, image could be reduced by about 18% at most by image contributions. Moreover, combining with the recent updated measurement on image by CDF and D0 Collaborations, we also find that image effects in image decays are very important for examining whether the CKM-like hierarchy persists in a family non-universal image coupling matrix.