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arXiv 0811.3957hep-ph
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LHC上的三重标量和暗物质

Triplet Scalars and Dark Matter at the LHC

Pavel Fileviez Perez, Hiren H. Patel, Michael. J. Ramsey-Musolf, Kai Wang

摘要:

我们调查的预测的一个简单的扩展的标准模型中的希格斯部门是由一个$SU(2)_L$的双重和一个真正的三重态。我们讨论了该模型的一般特征,包括它的真空结构,理论和唯象的限制,希格斯对撞机的研究和期望。该模型预测存在一对轻带电标量,并为消失的三重态真空期望值,包含一个冷的暗物质候选人。当后一种可能性发生时,带电标量是长寿命的,导致预测在LHC中有独特的单带电轨道与缺失的横向能量或双带电轨道事件。该模型预测一个显着过量的双光子事件相比,SM的预期,由于存在一个轻的带电标量。

英文摘要:

We investigate the predictions of a simple extension of the Standard Model where the Higgs sector is composed of one $SU(2)_L$ doublet and one real triplet. We discuss the general features of the model, including its vacuum structure, theoretical and phenomenological constraints, and expectations for Higgs collider studies. The model predicts the existence of a pair of light charged scalars and, for vanishing triplet vacuum expectation value, contains a cold dark matter candidate. When the latter possibility occurs, the charged scalars are long-lived, leading to a prediction of distinctive single charged track with missing transverse energy or double charged track events at the LHC. The model predicts a significant excess of two-photon events compared to SM expectations due to the presence of a light charged scalar.

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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