Phenomenology of a 5D orbifoldSU(3)Wunification model

Phenomenology of a 5D orbifoldSU(3)Wunification model
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5D orbifoldSU(3)Wunification 模型的现象学

DOI:
10.1103/physrevd.69.056005
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发表时间:
2003
期刊:
影响因子:
5
通讯作者:
J. Ng
J. Ng
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
We;J. Ng

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我们研究了一个5D ${\ mathm {SU}(3)}_{W}$模型在${S}_{1}{/(Z}_{2}\ifmmode\times\else\texttimes\fi{}{Z}_{2}^{\ensuremath{'}})$轨道上的现象学,其中最小标量扇区在没有右旋单重态的情况下,在辐射产生中微子马约拉纳质量中起着重要作用。我们仔细研究了奇异标量如何影响规范耦合和5D ${\ mathm {SU}(3)}_{W}$统一的重整化群方程。我们发现额外维度的紧化尺度在$1/R\ensuremath{\sim}1.5\char21{}5\ mathm {TeV}的范围内。相对低质量卡鲁扎-克莱因激发存在的可能性使得现象学的近期研究引起了人们的兴趣。一些可能的双光子特征可以在未来的对撞机和强中微子束的中微子散射实验中寻找。讨论了介子物理的低能约束和双轻子引起的轻子数违反衰变过程。这些约束可以提供有关汤川耦合结构的新信息,这可能对未来的模型构建有用。
We study the phenomenology of a 5D ${\mathrm{SU}(3)}_{W}$ model on an ${S}_{1}{/(Z}_{2}\ifmmode\times\else\texttimes\fi{}{Z}_{2}^{\ensuremath{'}})$ orbifold in which the minimal scalar sector plays the essential role of radiatively generating neutrino Majorana masses without the benefit of right-handed singlets. We carefully examine how the exotic scalars affect the renormalization group equations for the gauge couplings and the 5D ${\mathrm{SU}(3)}_{W}$ unification. We find that the compactification scale of the extra dimension is in the range of $1/R\ensuremath{\sim}1.5\char21{}5\mathrm{TeV}.$ The possibility of the existence of relatively low mass Kaluza-Klein excitations makes the phenomenology of the near term of interest. Some possible bilepton signatures can be searched for in future colliders and in neutrino scattering experiments with intense neutrino beams. The low energy constraints from muon physics and the lepton number violating decay process induced by the bilepton are also discussed. These constraints can provide new information about the structure of Yukawa couplings which might be useful for future model building.
DOI: 10.1086/377253
发表时间: 2003-09-01
影响因子: 8.7
作者:
Bennett, CL;Halpern, M;Weiland, JL
通讯作者: Weiland, JL