Anomaly-induced gauge unification and brane/bulk couplings in gravity-localized theories

被引:23
作者
Dienes, KR [1 ]
Dudas, E
Gherghetta, T
机构
[1] CERN, Div Theory, CH-1211 Geneva 23, Switzerland
[2] Univ Arizona, Dept Phys, Tucson, AZ 85721 USA
[3] Univ Paris Sud, LPTHE, F-91405 Orsay, France
关键词
D O I
10.1016/S0550-3213(99)00682-3
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 has recently been proposed that gravity-localized compactifications can generate the required gauge hierarchy without the need for hierarchically large extra space-time dimensions. In this paper, we show that gauge coupling unification arises naturally in such scenarios as a result of the anomaly induced by the rescaling of the wavefunctions of the brane fields. Thus, "anomaly-induced" gauge coupling unification can easily explain the apparent low-energy gauge couplings in gravity-localized compactifications. However, we also point out a number of phenomenological difficulties with such compactifications, including an inability to accommodate the GUT scale and the electroweak scale simultaneously. We also show that brane/bulk couplings in this scenario are generically too small to be phenomenologically relevant. Finally, we speculate on possible resolutions to these puzzles. (C) 2000 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:111 / 132
页数:22
相关论文
共 34 条
[1]   New dimensions at a millimeter to a fermi and superstrings at a TeV [J].
Antoniadis, I ;
Arkani-Hamed, N ;
Dimopoulos, S ;
Dvali, G .
PHYSICS LETTERS B, 1998, 436 (3-4) :257-263
[2]  
ANTONIADIS I, HEPTH9906039
[3]   Phenomenology, astrophysics, and cosmology of theories with submillimeter dimensions and TeV scale quantum gravity [J].
Arkani-Hamed, N ;
Dimopoulos, S ;
Dvali, G .
PHYSICAL REVIEW D, 1999, 59 (08)
[4]   The hierarchy problem and new dimensions at a millimeter [J].
Arkani-Hamed, N ;
Dimopoulos, S ;
Dvali, G .
PHYSICS LETTERS B, 1998, 429 (3-4) :263-272
[5]  
ARKANIHAMED A, HEPTH9908146
[6]  
ARKANIHAMED N, HEPOPH9811448
[7]  
Bachas CP, 1998, J HIGH ENERGY PHYS
[8]  
BRANDHUBER A, HEPTH9908116
[9]  
CLINE JM, HEPPH9906523
[10]   RADIATIVE-CORRECTIONS AS ORIGIN OF SPONTANEOUS SYMMETRY BREAKING [J].
COLEMAN, S ;
WEINBERG, E .
PHYSICAL REVIEW D, 1973, 7 (06) :1888-1910