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arXiv 1306.6631hep-phhep-ex
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非简并夸克的Flaintel规范介导

Non-Degenerate Squarks from Flavored Gauge Mediation

Iftah Galon, Gilad Perez, Yael Shadmi

摘要:

我们研究了Flavonge规范中介模型的夸克谱,在该模型中信使物质超势耦合产生了新的,与世代相关的夸克质量贡献。新的耦合是由相同的味道对称性,解释了费米子质量,导致夸克和夸克质量矩阵的良好对齐控制。这允许与所有风味边界一致的大squark质量分裂。特别是,第二代squarks通常比第一代squarks轻得多。由于大型强子对撞机的夸克产生主要是由上夸克和下夸克所控制,而夸克搜索的效率随着它们的质量而增加,因此魅力和/或奇异夸克的质量可能远低于目前的大型强子对撞机的界限。与此同时,即使只有一组信使,模型也可以产生大的停止混合,从而导致对希格斯质量的大循环贡献。

英文摘要:

We study the squark spectra of Flavored Gauge Mediation Models, in which messenger-matter superpotential couplings generate new, generation-dependent contributions to the squark masses. The new couplings are controlled by the same flavor symmetry that explains the fermion masses, leading to excellent alignment of the quark and squark mass matrices. This allows for large squark mass splittings consistent with all flavor bounds. In particular, second-generation squarks are often significantly lighter than the first-generation squarks. As squark production at the LHC is dominated by the up- and down-squarks and the efficiencies for squark searches increase with their masses, the charm and/or strange squark masses can be well below the current LHC bounds. At the same time, even with a single set of messengers, the models can generate large stop mixings which result in large loop contributions to the Higgs mass.

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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