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arXiv 0811.2969hep-phastro-ph
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引力子暗物质与R-破坏算符的味结构

Gravitino Dark Matter and the Flavour Structure of R-violating Operators

N. -E. Bomark, S. Lola, P. Osland, A. R. Raklev

摘要:

我们研究引力子暗物质和慢引力子衰变的框架内的R-违反超对称性,特别强调的味道依赖的分支比和允许的R-违反耦合。主导衰变模式和最终状态的产品原来是非常敏感的R-违反层次。混合效应在正确地导出各种贡献的相对幅度中可能是至关重要的,特别是对于具有相空间抑制的重口味。对引力子不同衰变率强度的研究也与对撞机签名相关,这些签名预计来自次锂超对称粒子(NLSP)的衰变和单个超粒子的产生。

英文摘要:

We study gravitino dark matter and slow gravitino decays within the framework of R-violating supersymmetry, with particular emphasis on the flavour dependence of the branching ratios and the allowed R-violating couplings. The dominant decay modes and final state products turn out to be very sensitive to the R-violating hierarchies. Mixing effects can be crucial in correctly deriving the relative magnitude of the various contributions, particularly for heavy flavours with phase space suppression. The study of the strength of different decay rates for the gravitino is also correlated to collider signatures expected from decays of the Next-to-Lightest Supersymmetric Particle (NLSP) and to single superparticle production.

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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