English  |  正體中文  |  简体中文  |  全文笔数/总笔数 : 62796/95837 (66%)
造访人次 : 3639415      在线人数 : 376
RC Version 7.0 © Powered By DSPACE, MIT. Enhanced by NTU Library & TKU Library IR team.
搜寻范围 查询小技巧:
  • 您可在西文检索词汇前后加上"双引号",以获取较精准的检索结果
  • 若欲以作者姓名搜寻,建议至进阶搜寻限定作者字段,可获得较完整数据
  • 进阶搜寻


    jsp.display-item.identifier=請使用永久網址來引用或連結此文件: https://tkuir.lib.tku.edu.tw/dspace/handle/987654321/108242


    题名: Vacuum stability, neutrinos, and dark matter
    作者: Chen, Chian-Shu;Tang, Yong
    关键词: Higgs Physics;Beyond Standard Model;Renormalization Group;Neutrino Physics
    日期: 2012-04-17
    上传时间: 2016-11-12 02:10:56 (UTC+8)
    摘要: Motivated by the discovery hint of the Standard Model (SM) Higgs mass around 125 GeV at the LHC, we study the vacuum stability and perturbativity bounds on Higgs scalar of the SM extensions including neutrinos and dark matter (DM). Guided by the SM gauge symmetry and the minimal changes in the SM Higgs potential we consider two extensions of neutrino sector (Type-I and Type-III seesaw mechanisms) and DM sector (a real scalar singlet (darkon) and minimal dark matter (MDM)) respectively. The darkon contributes positively to the β function of the Higgs quartic coupling λ and can stabilize the SM vacuum up to high scale. Similar to the top quark in the SM we find the cause of instability is sensitive to the size of new Yukawa couplings between heavy neutrinos and Higgs boson, namely, the scale of seesaw mechanism. MDM and Type-III seesaw fermion triplet, two nontrivial representations of SU(2)L group, will bring the additional positive contributions to the gauge coupling g2 renormalization group (RG) evolution and would also help to stabilize the electroweak vacuum up to high scale.
    關聯: Journal of High Energy Physics 1204:019
    DOI: 10.1007/JHEP04(2012)019
    显示于类别:[物理學系暨研究所] 期刊論文

    文件中的档案:

    档案 描述 大小格式浏览次数
    index.html0KbHTML243检视/开启
    index.html0KbHTML98检视/开启

    在機構典藏中所有的数据项都受到原著作权保护.

    TAIR相关文章

    DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library & TKU Library IR teams. Copyright ©   - 回馈