Extra dimensions and Seesaw Neutrinos at the International Linear Collider
Extra dimensions and Seesaw Neutrinos at the International Linear Collider
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国际直线对撞机上的额外维度和跷跷板中微子
DOI：
10.1103/physrevd.82.093004
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发表时间：
2010
期刊：
影响因子：
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通讯作者：
Y. Takubo and H. Yamamoto et al
中科院分区：
文献类型：
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作者：
T. Saito;M. Asano;K. Fujii;N. Haba;S. Matsumoto;T. Nabeshima;Y. Takubo and H. Yamamoto et al
我们研究了国际直线对撞机通过跷跷板机制探测额外维度的能力。在我们研究的场景中，重的Kaluza-Klein中微子产生微小的中微子和质量，同时与标准模型粒子有相当大的耦合。因此，可以在国际直线对撞机上通过以下过程产生和研究重中微子的卡鲁扎-克莱因塔：随后进行衰变。结果表明，这一信号过程中能量损失较大的单轻子加双喷注末态将为测量三能级以下的Kaluza-Klein中微子的质量和截面提供了一个很好的机会。此外，中微子振荡参数可以从最低模信号的味道相关性中提取出来，这为我们提供了关于低能中微子质量起源的信息。
We study the capability of the International Linear Collider to probe extra dimensions via the seesaw mechanism. In the scenario we study, heavy Kaluza-Klein neutrinos generate tiny neutrino <?format ?>masses and, at the same time, have sizable couplings to the standard-model particles. Consequently, a Kaluza-Klein tower of heavy neutrinos () can be produced and studied at the International Linear Collider through the process:followed bydecay. We show that the single lepton plus two-jets final states with large missing energy from this signal process will provide a good opportunity to measure the masses and cross sections of Kaluza-Klein neutrinos up to the third level. Furthermore, the neutrino oscillation parameters can be extracted from the flavor dependence of the lowest-mode signals, which give us information about the origin of low-energy neutrino masses.