We study the Kahler potential of charged matter fields, whose profiles have a peak on their matter curve - on an "intersection" of 7-branes, in an F-theory compactification. It is shown that the Kahler potential is exactly given by the integral over the matter curve, but not by the integral over the whole GUT surface of 7-branes. (C) 2012 Published by Elsevier B.V.
机构:
Univ Tokyo, Kavli Inst Phys & Math Universe, Kashiwa No Ha 5-1-5, Tokyo 2778583, JapanUniv Tokyo, Kavli Inst Phys & Math Universe, Kashiwa No Ha 5-1-5, Tokyo 2778583, Japan