N =1 supergravitational heterotic galileons
N =1 supergravitational heterotic galileons
A bstract Heterotic M -theory consists of a five-dimensional manifold of the form S 1 / Z 2 Ć M 4 . It has been shown that one of the two orbifold planes, the āobservableā sector, can have a low energy particle spectrum which is precisely the N = 1 ā¦