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arXiv 1105.4022hep-ph
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LHC上R破坏中子衰变的味结构

Flavour Structure of R-violating Neutralino Decays at the LHC

Nils-Erik Bomark, Debajyoti Choudhury, Smaragda Lola, Per Osland

摘要:

我们研究的签名的R-宇称违反在LHC的超对称粒子的生产,以及随后的衰变的最轻的中性伴子的超对称级联衰变的最终产品。在这样做时,我们特别注意可能的风味结构的运营商,以及如何可以区分不同的可能性。一个中性伴子LSP将耦合到所有的夸克和轻子,它的衰变的比较研究提供了一个最佳的渠道,同时研究所有45个R-破坏运营商。通过研究所有这些运营商的预期信号,我们证明了理解是否有一个以上的耦合占主导地位,并映射到操作员层次结构,然后可以对口味的理论模型进行比较的实验签名的能力。使用PYTHIA事件模拟器与背景进行了详细的比较,包括来自MSSM级联衰变的背景。

英文摘要:

We study signatures of R-parity violation in the production of supersymmetric particles at the LHC, and the subsequent decay of the lightest neutralino being the end product of a supersymmetric cascade decay. In doing so, we pay particular attention to the possible flavour structure of the operators, and how one may discriminate between different possibilities. A neutralino LSP would couple to all quarks and leptons and a comparative study of its decays provides an optimal channel for the simultaneous study of all 45 R-violating operators. By studying the expected signals from all these operators, we demonstrate the ability to understand whether more than one coupling dominates, and to map the experimental signatures to operator hierarchies that can then be compared against theoretical models of flavour. Detailed comparisons with backgrounds, including those from MSSM cascade decays are made, using the PYTHIA event simulator.

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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