A natural scenario for heavy colored and light uncolored superpartners
A natural scenario for heavy colored and light uncolored superpartners
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DOI：
10.1016/j.physletb.2013.07.040
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发表时间：
2013-04
影响因子：
4.4
通讯作者：
G. Bhattacharyya;B. Bhattacherjee;T. Yanagida;N. Yokozaki
中科院分区：
文献类型：
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作者：
G. Bhattacharyya;B. Bhattacherjee;T. Yanagida;N. Yokozaki
受当前实验数据趋势的影响，特别是来自LHC的数据，我们构建了一个超对称的场景，其中自然动力学使方子和胶子超重（10 TeV量级），而保持slepton和弱gauginos轻（100-500 GeV）。动力学依赖于两个基本思想的融合：（i）规范介导的超对称破缺与两个信使多重态，一个转化为弱SU（2）的三重态，另一个转化为色SU（3）的八重态;（ii）微扰规范耦合统一在弦尺度上，即使这些不完整的SU（5）多重态。有趣的是，三重态和八重态信使尺度的相对大小确保了规范在双环水平上的统一，这也有助于自然地保持无色的超伴体轻，同时使有色的超伴体重。
Influenced by the current trend of experimental data, especially from the LHC, we construct a supersymmetric scenario where a natural dynamics makes the squarks and gluino super-heavy (order 10 TeV) while keeping the sleptons and the weak gauginos light (100–500 GeV). The dynamics relies on the interfusion of two underlying ideas: (i) gauge mediation of supersymmetry breaking with two messenger multiplets, one transforming as a triplet of weak SU(2) and the other as an octet of color SU(3); (ii) perturbative gauge coupling unification at the string scale even with these incomplete SU(5) multiplets. Interestingly, the relative magnitude of the triplet and octet messenger scales that ensures gauge unification at the two-loop level also helps to naturally keep the uncolored superpartners light while making the colored ones heavy.