Searching for the $X(3872)$ and $Z_c^{+}(3900)$ on HISQ lattices

Song-haeng Lee, Carleton DeTar, Daniel Mohler +1

We present preliminary simulation results for the I = 0 charmonium state $X(3872)(1^{++})$ and the I = 1 charmonium state $Z_c^{+}(3900)(1^{+-})$. The study is performed on gauge fie…