Pair correlation statistics for Sato-Tate sequences

We investigate the pair correlation statistics for sequences arising from Hecke eigenvalues with respect to spaces of primitive modular cusp forms. We derive the average pair correlation function of Hecke angles lying in small subintervals of $[0,1]$. The averaging is done over non-CM newforms of weight $k$ with respect to ${\mathrm{\Gamma }}_0(N)\mathrm{.}$ We also derive similar statistics for Hilbert modular forms and modular forms on hyperbolic 3-spaces.