Hadronic production of light color-triplet Higgs bosons: An alternative signature for grand unified theories
Hadronic production of light color-triplet Higgs bosons: An alternative signature for grand unified theories
复制标题
浅色三重态希格斯玻色子的强子产生：大统一理论的替代签名
DOI：
10.1103/physrevd.67.075003
复制
发表时间：
2002
影响因子：
5
通讯作者：
G. Cho
中科院分区：
文献类型：
--
作者：
K. Cheung;G. Cho
大统一理论（GUT）的传统标志是质子衰变。近年来，一些在额外维度或具有特定离散对称性的模型，通过抑制三重态与物质费米子的Yukawa耦合，允许在TeV质量区存在色三重态，从而解决了双三重态问题。我们研究强子生产和检测这些TeV色希格斯玻色子作为一种替代签名的大统一体，这将表现得像大规模的稳定带电粒子在粒子探测器中产生一个引人注目的签名的带电轨道在中央跟踪系统和被电离的外μ子室。我们发现LHC对高达约1.5 TeV的有色希格斯玻色子敏感。如果三重色在宇宙学时间尺度上是稳定的，它们可能构成暗物质的一个有趣的部分。
The conventional signature for grand unified theories (GUT) is the proton decay. Recently, some models in extra dimensions or with specific discrete symmetries, which aim at solving the doublet-triplet problem, allow the color-triplet in the TeV mass region by suppressing the Yukawa couplings of the triplets to matter fermions. We study the hadronic production and detection of these TeV colored Higgs bosons as an alternative signature for GUT, which would behave like massive stable charged particles in particle detectors producing a striking signature of a charged track in the central tracking system and being ionized in the outer muon chamber. We found that the LHC is sensitive to a colored Higgs boson up to about 1.5 TeV. If the color-triplets are stable in cosmological time scale, they may constitute an interesting fraction of the dark matter.