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arXiv 0901.0233hep-ph
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具有SO(3)族对称性的新的扩展左右对称大统一模型

The New Extended Left-Right Symmetric Grand Unified Model with SO(3) Family Symmetry

Wei-Min Yang, Hong-Huan Liu

摘要:

通过扩展Pati-Salam群,使之包含一个同位旋SU(2)和一个味SO(3)子群,并引入超重费米子作为低能标准模型费米子的镜像,提出了一个新的左右对称大统一模型.该模型通过指定的希格斯多重态经过三个步骤打破SM。该模型的几个参数可以很好地容纳所有粒子在电弱标度下的整个质量谱,特别是在夸克和轻子扇区的两种不同的味道混合与现有的实验数据非常一致。很好地解释了强CP破坏。宇宙中的物质-反物质不对称性是通过超重规范玻色子的B-L破坏衰变成功实现的。该模型还预测,最轻的右手Majorana中微子,其质量约为几百GeV,能量约为$10^{16}$ GeV,可能是暗物质的候选者。

英文摘要:

We suggest a new left-right symmetric grand unified model by extending Pati-Salam group to contain an isospin SU(2) and a flavor SO(3) subgroup, where the superheavy fermions are introduced as a mirror to the low-energy standard model fermions. The model undergoes three steps to break to the SM by means of the specified Higgs multiplets. The model few parameters can elegantly accommodate whole mass spectra for all the particles at the electroweak scale, especially, two different flavor mixing for the quark and lepton sectors are reproduced in agreement with the current experimental data very well. The strong CP violation is excellently explained. The matter-antimatter asymmetry in the universe is successfully implemented through the B-L violating decays of the superheavy gauge bosons. The model also predicts that the lightest right-handed Majorana neutrino, whose mass is about several hundred GeVs and energy is about $10^{16}$ GeV, is possibly a candidate for the dark matter.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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