Top SU(5) models: Baryon and lepton number violating resonances at the LHC
文献类型：期刊论文
| 作者 | Li, TJ
|
| 刊名 | PHYSICAL REVIEW D
 |
| 出版日期 | 2013 |
| 卷号 | 87期号:9页码:96002 |
| 关键词 | GAUGE SYMMETRIES 3RD FAMILY QUARK FORCES COLOR UNITY |
| ISSN号 | 1550-7998 |
| 通讯作者 | Chakdar, S (reprint author), Oklahoma State Univ, Dept Phys, Stillwater, OK 74078 USA. |
| 英文摘要 | We propose minimal and renormalizable nonsupersymmetric top SU(5) models where the SU(5)(C) X SU(3)'(C) X SU(2)'(L) X U(1)'(Y) gauge symmetry is broken down to the Standard Model gauge symmetry at the TeV scale. The first two families of the Standard Model fermions are charged under SU(3)'C X SU(2)'(L) X U(1)'(Y), while the third family is charged under SU(5). In the minimal top SU(5) model, we show that the quark Cabibbo-Kobayashi-Maskawa mixing matrix can be generated via dimension-five operators, and the proton decay problem can be solved by fine-tuning the coefficients of the higher-dimensional operators at the order of 10(-4). In the renormalizable top SU(5) model, we can explain the quark Cabibbo-Kobayashi-Maskawa mixing matrix by introducing vectorlike particles, and we do not have the proton decay problem. The models give rise to leptoquark and diquark gauge bosons which violate both lepton and baryon numbers involving the third-family quarks and leptons. The current experimental limits for these particles is well below the TeV scale. We also discuss the productions and decays of these new gauge bosons, and their ensuing signals, as well as their reach at the LHC. |
| 学科主题 | Physics |
| 收录类别 | SCI |
| 资助信息 | Natural Science Foundation of China [10821504, 11075194, 11135003]; United States Department of Energy [DE-FG03-95-Er-40917, DE-FG02-04ER41306]; Department of Atomic Energy, Government of India |
| 原文出处 | http://dx.doi.org/10.1103/PhysRevD.87.096002 |
| 语种 | 英语 |
| WOS记录号 | WOS:000318474300004 |
| 公开日期 | 2014-04-25 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/15368]  |
| 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 | Li, TJ. Top SU(5) models: Baryon and lepton number violating resonances at the LHC[J]. PHYSICAL REVIEW D,2013,87(9):96002. |
| APA | Li, TJ.(2013).Top SU(5) models: Baryon and lepton number violating resonances at the LHC.PHYSICAL REVIEW D,87(9),96002. |
| MLA | Li, TJ."Top SU(5) models: Baryon and lepton number violating resonances at the LHC".PHYSICAL REVIEW D 87.9(2013):96002. |
入库方式： OAI收割
来源：理论物理研究所
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