arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 0909.5336hep-ph
收藏

约束例外超对称标准模型的唯象结果

Phenomenological Consequences of the Constrained Exceptional Supersymmetric Standard Model

P. Athron, S. F. King, D. J. Miller, S. Moretti, R. Nevzorov

摘要:

特殊超对称标准模型(E $_6$ SSM)提供了一个低能量的替代MSSM,具有额外的规范U(1)$_N$对称性,解决了MSSM的$μ$ -问题。受可能嵌入E $_6$大统一体的启发,物质内容填充了三代E $_6$多重态,从而预测了令人兴奋的奇异物质,如双夸克或轻夸克。我们提出了一个约束版本的模型(CE $_6$ SSM)的预测,具有通用标量质量$m_0$,三线性质量$A$和高根质量$M_{1/2}$。我们揭示了大量的cE $_6$ SSM参数空间中的正确的击穿的规范对称性实现和所有的实验约束满足。我们预测一个分层粒子光谱与重标量和轻gauginos,而新的外来物质可以轻或重取决于参数。我们提出了具有代表性的cE $_6$ SSM方案,表明可能存在轻的奇异粒子,如leptoquark和U(1)$_N$ Z'玻色子,在大型强子对撞机上具有壮观的信号。

英文摘要:

The Exceptional Supersymmetric Standard Model (E$_6$SSM) provides a low energy alternative to the MSSM, with an extra gauged U(1)$_N$ symmetry, solving the $μ$-problem of the MSSM. Inspired by the possible embedding into an E$_6$ GUT, the matter content fills three generations of E$_6$ multiplets, thus predicting exciting exotic matter such as diquarks or leptoquarks. We present predictions from a constrained version of the model (cE$_6$SSM), with a universal scalar mass $m_0$, trilinear mass $A$ and gaugino mass $M_{1/2}$. We reveal a large volume of the cE$_6$SSM parameter space where the correct breakdown of the gauge symmetry is achieved and all experimental constraints satisfied. We predict a hierarchical particle spectrum with heavy scalars and light gauginos, while the new exotic matter can be light or heavy depending on parameters. We present representative cE$_6$SSM scenarios, demonstrating that there could be light exotic particles, like leptoquarks and a U(1)$_N$ Z' boson, with spectacular signals at the LHC.

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。

↑