Brane-antibrane kinetic mixing, millicharged particles and SUSY breaking

被引：139
作者：
Abel, SA [1 ]
Schofield, BW
机构：
[1] Univ Durham, Inst Part Phys Phenomenol, Durham DH1 3LE, England
[2] Univ Durham, Dept Math Sci, Durham DH1 3LE, England
来源：
NUCLEAR PHYSICS B | 2004年 / 685卷
关键词：
D O I：
10.1016/j.nuclphysb.2004.02.037
中图分类号：
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号：
摘要：
It is known that hidden U(1) gauge factors can couple to visible U(1)s through kinetic mixing. This phenomenon is shown to occur in non-supersymmetric string set-ups, between D-branes and (D) over bar -branes. Kinetic mixing, if present, acts either to give millicharges (of, e.g., hypercharge) to would-be hidden sector fermions, or to generate an enhanced communication of supersymmetry breaking that dominates over the usual gravitational suppression. In either case, the conclusion is that the string scale in non-supersymmetric brane configurations has a generic upper bound of M-s less than or similar to 10(8) GeV. (C) 2004 Elsevier B.V. All rights reserved.
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页码：150 / 170
页数：21
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