String scale gauge coupling unification with vector-like exotics and noncanonical U(1)(Y) normalization

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	Barger, V.; Jiang, Jing; Langacker, Paul; Li, Tianjun; Barger, V , Univ Wisconsin, Dept Phys, 1150 Univ Ave, Madison, WI 53706 USA
	String scale gauge coupling unification with vector-like exotics and noncanonical U(1)(Y) normalization
发表期刊	INTERNATIONAL JOURNAL OF MODERN PHYSICS A
关键词	Strong Cp Problem Standard Model Supersymmetry Breaking Particle Physics Constant Unification Moduli Dependence Grand Unification Gut Breaking Condensation Conservation
摘要	We use a new approach to study string scale gauge coupling unification systematically, allowing both the possibility of noncanonical U(1)(Y) normalization and the existence of vector-like particles whose quantum numbers are the same as those of the Standard Model (SM) fermions and their Hermitian conjugates and the SM adjoint particles. We first give all the independent sets (Yi) of particles that can be employed to achieve SU(3)(C) and SU(2)(L) string scale gauge coupling unification and calculate their masses. Second, for a noncanonical U(1)(Y) normalization, we obtain string scale SU(3)(C) x SU(2)(L) x U(1)(Y) gauge coupling unification by choosing suitable U(1)(Y) normalizations for each of the Yi sets. Alternatively, for the canonical U(1)(Y) normalization, we achieve string scale gauge coupling unification by considering suitable combinations of the Yi sets or by introducing additional independent sets (Zi), that do not affect the SU(3)(C) x SU(2)(L) unification at tree level, and then choosing suitable combinations, one from the Yi sets and one from the Zi sets. We also briefly discuss string scale gauge coupling unification in models with higher Kac-Moody levels for SU(2)(L) or SU(3)(C).
	2007
ISSN	0217-751X
卷号	22 期号:32 页码:6203-6218
学科领域	Physics
收录类别	SCI
引用统计	被引频次：17[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.itp.ac.cn/handle/311006/5615
专题	理论物理所科研产出_SCI论文
通讯作者	Barger, V , Univ Wisconsin, Dept Phys, 1150 Univ Ave, Madison, WI 53706 USA
推荐引用方式 GB/T 7714	Barger, V.,Jiang, Jing,Langacker, Paul,et al. String scale gauge coupling unification with vector-like exotics and noncanonical U(1)(Y) normalization[J]. INTERNATIONAL JOURNAL OF MODERN PHYSICS A,2007,22(32):6203-6218.
APA	Barger, V.,Jiang, Jing,Langacker, Paul,Li, Tianjun,&Barger, V , Univ Wisconsin, Dept Phys, 1150 Univ Ave, Madison, WI 53706 USA.(2007).String scale gauge coupling unification with vector-like exotics and noncanonical U(1)(Y) normalization.INTERNATIONAL JOURNAL OF MODERN PHYSICS A,22(32),6203-6218.
MLA	Barger, V.,et al."String scale gauge coupling unification with vector-like exotics and noncanonical U(1)(Y) normalization".INTERNATIONAL JOURNAL OF MODERN PHYSICS A 22.32(2007):6203-6218.

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