Flavor symmetry based MSSM: Theoretical models and phenomenological analysis

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	Flavor symmetry based MSSM: Theoretical models and phenomenological analysis
	Babu, KS ; Gogoladze, I ; Raza, S ; Shafi, Q
刊名	PHYSICAL REVIEW D
	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
ISSN号	1550-7998
通讯作者	Babu, KS (reprint author), Oklahoma State Univ, Dept Phys, Stillwater, OK 74078 USA.
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.
学科主题	Physics
收录类别	SCI
资助信息	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]
原文出处	http://dx.doi.org/10.1103/PhysRevD.90.056001
语种	英语
WOS记录号	WOS:000341268800009
公开日期	2015-06-03
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/15661]
专题	理论物理研究所_理论物理所1978-2010年知识产出
推荐引用方式 GB/T 7714	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.
APA	Babu, KS,Gogoladze, I,Raza, S,&Shafi, Q.(2014).Flavor symmetry based MSSM: Theoretical models and phenomenological analysis.PHYSICAL REVIEW D,90(5),56001.
MLA	Babu, KS,et al."Flavor symmetry based MSSM: Theoretical models and phenomenological analysis".PHYSICAL REVIEW D 90.5(2014):56001.