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题名: Low-scale SU(4)(W) unification
作者: Balazs, Csaba ;  Li, Tianjun ;  Wang, Fei ;  Yang, Jin Min
刊名: JOURNAL OF HIGH ENERGY PHYSICS
出版日期: 2009
期号: 9, 页码:-
关键词: WEAK MIXING ANGLE ;  EXTRA DIMENSIONS ;  GUT BREAKING ;  GRAND UNIFICATION ;  PROTON STABILITY ;  GAUGE-SYMMETRY ;  TEV ;  MODEL ;  ANOMALIES ;  SU(3)
学科分类: Physics
通讯作者: Balazs, C , Monash Univ, Sch Phys, Melbourne, Vic 3800, Australia
部门归属: [Balazs, C; Wang, F] Monash Univ, Sch Phys, Melbourne, Vic 3800, Australia; [Li, TJ; Yang, JM] Chinese Acad Sci, Inst Theoret Phys, Key Lab Frontiers Theoret Phys, Beijing 100190, Peoples R China; [Li, TJ] Texas A&M Univ, George P & Cynthia W Mitchell Inst Fundamental Ph, College Stn, TX 77843 USA
英文摘要: We embed the minimal left-right model SU(2) L x SU(2) R x U(1)B-L into an SU(4) W gauge group, and break the unified group via five-dimensional S(1)/(Z(2) x Z2) orbifolding. Leptons are fitted into SU(4)(W) multiplets and located on a symmetry preserving O brane, while quarks are placed onto an O' brane where the symmetry is broken. This approach predicts sin(2) theta(W) = 0.25 for the weak mixing angle at tree level and leads to a rather low weakly ( strongly) coupled unification scale of order 3 x 10(2) TeV (several TeV) with supersymmetry, or as low as several TeV in the non-supersymmetric case. Another symmetry breaking chain with the low-energy gauge group SU(2)(L) x U(1)(3R) x U(1)(B-L) can also give rise to a weak mixing angle sin 2. W = 0.25 at tree level after gauge symmetry breaking by orbifolding. Such theories with low-scale unification have interesting phenomenological consequences.
资助者: Australian Research Council[DP0877916]; National Natural Science Foundation of China[10821504, 10725526, 10635030]; Cambridge-Mitchell Collaboration in Theoretical Cosmology
收录类别: SCI
原文出处: 查看原文
WOS记录号: WOS:000270667600015
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/5253
Appears in Collections:理论物理所1978-2010年知识产出_期刊论文

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Recommended Citation:
Balazs, Csaba,Li, Tianjun,Wang, Fei,et al. Low-scale SU(4)(W) unification[J]. JOURNAL OF HIGH ENERGY PHYSICS,2009(9):-.
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