Bounds on Masses of Bulk Fields in String Compactifications

Kachru, Shamit ; McGreevy, John ; Svrcek, Peter ; /Stanford U., Phys. Dept. /SLAC

Stanford Linear Accelerator Center

关键词: String Models;    Supersymmetry Theory-Hep,Hepph, Hepth;    Stabilization;    Compactification;    Theory-Hep,Hepph, Hepth;   

DOI  :  10.2172/876451
RP-ID  :  SLAC-PUB-11618
RP-ID  :  AC02-76SF00515
RP-ID  :  876451

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来源: UNT Digital Library

【 摘 要 】

In string compactification on a manifold X, in addition to the string scale and the normal scales of low-energy particle physics, there is a Kaluza-Klein scale 1/R associated with the size of X. We present an argument that generic string models with low-energy supersymmetry have, after moduli stabilization, bulk fields with masses which are parametrically lighter than 1/R. We discuss the implications of these light states for anomaly mediation and gaugino mediation scenarios.