Fixing a nontrivial automorphism of a number field K, we associate to ideals
in K an invariant (with values in {0,1,-1}) that we call the "spin" and for
which the associated L-function does not possess Euler products. We are
nevertheless able, using the techniques of bilinear forms, to handle spin value
distribution over primes, obtaining stronger results than the analogous ones
which follow from the technology of L-functions in its current state. The
initial application of our theorem is to the arithmetic statistics of Selmer
groups of elliptic curves.