Anomalous U(1)s masses in non-supersymmetric open string vacua
  Anomalous U(1)s are omnipresent in realizations of the Standard Model using D-branes. Such models are typically non-supersymmetric, and the anomalous U(1) masses are potentially relevant for experiment. In this paper, the string calculation of anomalous U(1) masses (hep-th/0204153) is extended to non-supersymmetric orientifolds. 
P. Anastasopoulos (Crete U, Ecole Polytechnique)