Intersecting Orbifold Planes and Local Anomaly Cancellation in M-Theory
نویسندگان
چکیده
A systematic program is developed for analyzing and cancelling local anomalies on networks of intersecting orbifold planes in the context of M -theory. Through a delicate balance of factors, it is discovered that local anomaly matching on the lowerdimensional intersection of two orbifold planes may require twisted matter on those planes which do not conventionally support an anomaly (such as odd-dimensional planes). In this way, gravitational anomalies can, in principle, tell us about (twisted) gauge groups on subspaces which are not necessarily ten-, sixor two-dimensional. An example is worked out for the case of an S/Z2 × T /Z2 orbifold and possible implications for four-dimensional physics are speculated on.
منابع مشابه
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