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arXiv 1306.2066hep-phhep-ex
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大型强子对撞机上双电荷标量和费米子的新信号

New Signals for Doubly-Charged Scalars and Fermions at the Large Hadron Collider

K. S. Babu, Ayon Patra, Santosh Kumar Rai

摘要:

标准模型的几个扩展在它们的粒子光谱中有轻的双电荷希格斯玻色子。这些模型的超对称版本引入了这些带双电荷的希格斯玻色子玻色子的费米子超伴子,希格斯玻色子,它们也保持轻。在这项工作中,我们分析了一个新的对撞机信号所产生的对生产和衰变的轻双电荷希格斯诺一个更轻的双电荷希格斯玻色子。我们主要研究具有自动R-宇称守恒的最小左右超对称模型,该模型预言了这样一个轻的双电荷希格斯玻色子及其在TeV尺度下的Higgsino伙伴,它们是SU(2)_L的单线态.我们调查了这些粒子的独特签名与四轻子和失踪的横向能量在最终状态的大型强子对撞机,并表明,发现达到这两种粒子可以增加在这个通道。

英文摘要:

Several extensions of the Standard Model have light doubly-charged Higgs bosons in their particle spectrum. The supersymmetric versions of these models introduce fermionic superpartners of these doubly-charged Higgs bosons, the Higgsinos, which also remain light. In this work we analyze a new collider signal resulting from the pair production and decay of a light doubly-charged Higgsino to an even lighter doubly-charged Higgs boson. We focus on the minimal left-right supersymmetric model with automatic R-parity conservation, which predicts such a light doubly-charged Higgs boson and its Higgsino partner at the TeV scale, which are singlets of SU(2)_L. We investigate the distinctive signatures of these particles with four leptons and missing transverse energy in the final state at the Large Hadron Collider and show that the discovery reach for both particles can be increased in this channel.

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