Anomalous U(1) gauge symmetry and lepton flavor violation

被引:4
作者
Kurosawa, K [1 ]
Maekawa, N
机构
[1] Kyoto Univ, Yukawa Inst Theoret Phys, Kyoto 6068502, Japan
[2] Univ Tokyo, Dept Phys, Tokyo 1130033, Japan
[3] Kyoto Univ, Dept Phys, Kyoto 6068502, Japan
[4] Tech Univ Munich, Dept Phys, D-85748 Garching, Germany
来源
PROGRESS OF THEORETICAL PHYSICS | 1999年 / 102卷 / 01期
关键词
D O I
10.1143/PTP.102.121
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
In recent years, many people have studied the possibility that the anomalous U(1) gauge symmetry is a trigger of SUSY breaking and/or an origin of the fermion mass hierarchy. Though it is interesting that the anomalous U(1) symmetry mag; explain these two phenomena simultaneously, it causes a negative stop mass squared or a severe fine-tuning in order to avoid the FCNC problem. Recently, it was pointed out that the F-term contribution of the dilaton field can dominate the flavor-dependent contribution from the anomalous U(1) D-term, so that the FCNC problem may be naturally avoided. In this paper, we study the case in which the dilaton is stabilized by the deformation of the Kahler potential for the dilaton and find that the order of the ratio of the F-term to the D-term contributions is generally determined. This implies that the branching ratio of mu --> e gamma can be found around the present experimental bound.
引用
收藏
页码:121 / 140
页数:20
相关论文
共 54 条
[1]   DYNAMICAL SUPERSYMMETRY BREAKING IN 4 DIMENSIONS AND ITS PHENOMENOLOGICAL IMPLICATIONS [J].
AFFLECK, I ;
DINE, M ;
SEIBERG, N .
NUCLEAR PHYSICS B, 1985, 256 (04) :557-599
[2]   Supersymmetry breaking and the supersymmetric flavor problem: An analysis of decoupling the first two generation scalars [J].
Agashe, K ;
Graesser, M .
PHYSICAL REVIEW D, 1999, 59 (01)
[3]   Dynamical supersymmetry breaking in models with a Green-Schwarz mechanism [J].
Arkani-Hamed, N ;
Dine, M ;
Martin, SP .
PHYSICS LETTERS B, 1998, 431 (3-4) :329-338
[4]   Can the supersymmetric flavor problem be solved by decoupling? [J].
ArkaniHamed, N ;
Murayama, H .
PHYSICAL REVIEW D, 1997, 56 (11) :R6733-R6737
[5]   STRING CALCULATION OF FAYET-ILIOPOULOS D-TERMS IN ARBITRARY SUPERSYMMETRIC COMPACTIFICATIONS [J].
ATICK, JJ ;
DIXON, LJ ;
SEN, A .
NUCLEAR PHYSICS B, 1987, 292 (01) :109-149
[6]   Constraints on the minimal supergravity model from nonstandard vacua [J].
Baer, H ;
Brhlik, M ;
Castano, D .
PHYSICAL REVIEW D, 1996, 54 (11) :6944-6956
[7]   QCD corrections to flavor-changing neutral currents in the supersymmetric standard model [J].
Bagger, JA ;
Matchev, KT ;
Zhang, RJ .
PHYSICS LETTERS B, 1997, 412 (1-2) :77-85
[8]   SIGNALS FOR SUPERSYMMETRIC UNIFICATION [J].
BARBIERI, R ;
HALL, LJ .
PHYSICS LETTERS B, 1994, 338 (2-3) :212-218
[9]   Anomalous U(1), gaugino condensation and supergravity [J].
Barreiro, T ;
de Carlos, B ;
Casas, JA ;
Moreno, JM .
PHYSICS LETTERS B, 1998, 445 (1-2) :82-93
[10]  
BILENKY SM, HEPPH9812360