Search for the doubly Cabibbo-suppressed decays $D^0\to K^+π^-η^\prime$ and $D^+\to K^+π^0η^\prime$

We present the first search for the doubly Cabibbo-suppressed decays $D^0\to K^+π^-η^\prime$ and $D^+\to K^+π^0η^\prime$ using an $e^+e^-$ collision data sample corresponding to an integrated luminosity of 20.3 fb$^{-1}$, collected at a center-of-mass energy of 3.773 GeV with the Beijing Spectromete