“…Upon splitting T 6 = T 4 × T 2 , we evaluate F analy 1 explicitly in the large volume limit of T 4 using the method of orbits [10,3] (or in mathematical parlance, the Rankin-Selberg method), for any choice of the unbroken gauge group h ⊂ e 8 ⊕ e 8 . In particular, we allow for h to be semisimple, thus extending previous results in the literature where always one e 8 -factor remained unbroken [3,11,12,13,14,15]. Equivalently, we allow for Wilson lines to be embedded in any of the factors in the sum e 8 ⊕e 8 .…”