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
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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):-. |
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