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题名: Flavor symmetry based MSSM: Theoretical models and phenomenological analysis
作者: Babu, KS ;  Gogoladze, I ;  Raza, S ;  Shafi, Q
刊名: PHYSICAL REVIEW D
出版日期: 2014
卷号: 90, 期号:5, 页码:56001
关键词: NONUNIVERSAL HIGGS MASSES ;  DISCRETE FAMILY SYMMETRY ;  ELECTRIC-DIPOLE MOMENTS ;  GRAND UNIFIED THEORIES ;  SUPERSYMMETRIC THEORIES ;  CP-VIOLATION ;  QUARK MASSES ;  STANDARD MODEL ;  FERMION MASSES ;  MIXING ANGLES
学科分类: Physics
DOI: 10.1103/PhysRevD.90.056001
通讯作者: Babu, KS (reprint author), Oklahoma State Univ, Dept Phys, Stillwater, OK 74078 USA.
部门归属: [Babu, K. S.] Oklahoma State Univ, Dept Phys, Stillwater, OK 74078 USA ;  [Gogoladze, Ilia ;  Shafi, Qaisar] Univ Delaware, Bartol Res Inst, Dept Phys & Astron, Newark, DE 19716 USA ;  [Raza, Shabbar] Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China ;  [Raza, Shabbar] Chinese Acad Sci, Inst Theoret Phys, KITPC, Beijing 100190, Peoples R China
英文摘要: We present a class of supersymmetric models in which symmetry considerations alone dictate the form of the soft SUSY breaking Lagrangian. We develop a class of minimal models, denoted as sMSSM-for flavor symmetry-based minimal supersymmetric standard model-that respect a grand unified symmetry such as SO(10) and a non-Abelian flavor symmetry H which suppresses SUSY-induced flavor violation. Explicit examples are constructed with the flavor symmetry being gauged SU(2)(H) and SO(3)(H) with the three families transforming as 2 + 1 and 3 representations, respectively. A simple solution is found in the case of SU(2)(H) for suppressing the flavor violating D-terms based on an exchange symmetry. Explicit models based on SO(3)(H) without the D-term problem are developed. In addition, models based on discrete non-Abelian flavor groups are presented which are automatically free from D-term issues. The permutation group S-3 with a 2 + 1 family assignment, as well as the tetrahedral group A(4) with a 3 assignment are studied. In all cases, a simple solution to the SUSY CP problem is found, based on spontaneous CP violation leading to a complex quark mixing matrix. We develop the phenomenology of the resulting sMSSM, which is controlled by seven soft SUSY breaking parameters for both the 2 + 1 assignment and the 3 assignment of fermion families. These models are special cases of the phenomenological MSSM (pMSSM), but with symmetry restrictions. We discuss the parameter space of sMSSM compatible with LHC searches, B-physics constraints and dark matter relic abundance. Fine-tuning in these models is relatively mild, since all SUSY particles can have masses below about 3 TeV.
资助者: DOE [de-sc0010108, DE-FG02-12ER41808]; National Science Foundation [OCI-1053575]; Rustaveli National Science Foundation [31/98]; US Department of Energy [de-sc0010137]; US National Science Foundation [PHY-1342611]
收录类别: SCI
原文出处: 查看原文
语种: 英语
WOS记录号: WOS:000341268800009
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/15661
Appears in Collections:理论物理所2014年知识产出 _期刊论文

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Recommended Citation:
Babu, KS,Gogoladze, I,Raza, S,et al. Flavor symmetry based MSSM: Theoretical models and phenomenological analysis[J]. PHYSICAL REVIEW D,2014,90(5):56001.
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