Search for doubly-charged Higgs boson production at HERA
Search for doubly-charged Higgs boson production at HERA
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在 HERA 寻找双电荷希格斯玻色子的产生
DOI：
10.1016/j.physletb.2006.05.061
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发表时间：
2006
影响因子：
4.4
通讯作者：
Harp Collaboration
中科院分区：
文献类型：
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作者：
Harp Collaboration
提出了在 ep 碰撞中双电荷希格斯玻色子 H±± 的单一产生的搜索。通过希格斯粒子衰变成一对高质量的相同电荷轻子（其中一个是电子）来搜索信号。该分析使用了 HERA H1 实验收集的多达 118 pb−1of ep 数据。没有观察到双电荷希格斯粒子产生的证据，并且质量依赖的上限是根据希格斯玻色子与电子-轻子对的汤川耦合得出的。假设双电荷希格斯粒子仅通过电磁强度heμ=4παem≃0.3的耦合衰变成电子和μ子，则在95%置信水平下获得H±±质量的下限141 GeV。对于仅衰变为电子和 tau 的双电荷希格斯粒子以及耦合 heτ≃0.3，低于 112 GeV 的质量被排除。
A search for the single production of doubly-charged Higgs bosons H±±in ep collisions is presented. The signal is searched for via the Higgs decays into a high mass pair of same charge leptons, one of them being an electron. The analysis uses up to 118 pb−1of ep data collected by the H1 experiment at HERA. No evidence for doubly-charged Higgs production is observed and mass dependent upper limits are derived on the Yukawa couplings helof the Higgs boson to an electron–lepton pair. Assuming that the doubly-charged Higgs only decays into an electron and a muon via a coupling of electromagnetic strength heμ=4παem≃0.3, a lower limit of 141 GeV on the H±±mass is obtained at the 95% confidence level. For a doubly-charged Higgs decaying only into an electron and a tau and a coupling heτ≃0.3, masses below 112 GeV are ruled out.