SU(5) and SO(10) models from F-theory with natural Yukawa couplings

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	SU(5) and SO(10) models from F-theory with natural Yukawa couplings
	Li, TJ , Chinese Acad Sci, Inst Theoret Phys, Key Lab Frontiers Theoret Phys, Beijing 100190, Peoples R China; Li, Tianjun
刊名	PHYSICAL REVIEW D
	2010
卷号	81 期号:6 页码:-
关键词	Neutrino-mass
ISSN号	1550-7998
英文摘要	We construct the SU(5) and SO(10) models from F-theory. Turning on the U(1) fluxes, we can break the SU(5) gauge symmetry down to the standard model (SM) gauge symmetry, and break the SO(10) gauge symmetry down to the SU(3)(C) x SU(2)(L) x SU(2)(R) x U(1)(B-L) gauge symmetry. In particular, all the SM fermion Yukawa couplings preserve the enhanced U(1)(a) x U(1)(b) gauge or global symmetries at the triple intersections of the SM fermion and Higgs curves. And the SM fermion masses and mixings can be generated in the presence of background fluxes. In our models, the doublet-triplet splitting problem can be solved naturally. The additional vectorlike particles can obtain heavy masses via the instanton effects or Higgs mechanism and then decouple at the high scale. The SM gauge couplings at the string scale, which are split due to the U(1) flux effects, can be explained by considering heavy threshold corrections from the extra vectorlike particles. Moreover, in the SU(5) model, we have the Yukawa coupling unification for the bottom quark and tau lepton. In the SO(10) models, we have the Yukawa coupling unification for the top and bottom quarks, and the Yukawa coupling unification for the tau lepton and tau neutrino.
学科主题	Physics
URL标识	查看原文
WOS记录号	WOS:000276195700101
公开日期	2012-08-02
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/5149]
专题	理论物理研究所_理论物理所1978-2010年知识产出
通讯作者	Li, TJ , Chinese Acad Sci, Inst Theoret Phys, Key Lab Frontiers Theoret Phys, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Li, TJ , Chinese Acad Sci, Inst Theoret Phys, Key Lab Frontiers Theoret Phys, Beijing 100190, Peoples R China,Li, Tianjun. SU(5) and SO(10) models from F-theory with natural Yukawa couplings[J]. PHYSICAL REVIEW D,2010,81(6):-.
APA	Li, TJ , Chinese Acad Sci, Inst Theoret Phys, Key Lab Frontiers Theoret Phys, Beijing 100190, Peoples R China,&Li, Tianjun.(2010).SU(5) and SO(10) models from F-theory with natural Yukawa couplings.PHYSICAL REVIEW D,81(6),-.
MLA	Li, TJ , Chinese Acad Sci, Inst Theoret Phys, Key Lab Frontiers Theoret Phys, Beijing 100190, Peoples R China,et al."SU(5) and SO(10) models from F-theory with natural Yukawa couplings".PHYSICAL REVIEW D 81.6(2010):-.