论文标题
Xenon掺杂的液体氩TPCS作为中性s的双β衰减平台
Xenon-Doped Liquid Argon TPCs as a Neutrinoless Double Beta Decay Platform
论文作者
论文摘要
搜索中准双β衰变继续扩展我们对Lepton部门的理解，现在实验追求对$ M_ {ββ} $敏感的吨位目标质量，涵盖了倒置的中性中微子质量顺序的允许参数空间。继续搜索这种罕见的衰减将需要可扩展的检测器技术，以使目标质量的显着增加，以探测正常的顺序区域。这项工作探讨了在10 kton量表液体氩时间投影室（LARTPC）中寻找中性s的双β衰变的概念，该量子量高地下，并用百分之级的Xenon掺杂。我们讨论设计要求，后台缓解和检测器研发需求，以及在修改后的Dune远处检测器模块中进行部署的考虑。我们发现，如果可以实现重大的背景减少，则这种检测器可以在2-4 MEV范围内达到2-4 MEV范围的$ M_ {ββ} $敏感性，而Xenon掺杂量为2％。
Searches for neutrinoless double-beta decay continue to expand our understanding of the lepton sector, with experiments now pursuing ton-scale target masses with sensitivity to $m_{ββ}$ covering the allowed parameter space for the inverted neutrino mass ordering. Continued searches for this rare decay will require scalable detector technologies to achieve significant increases in the target mass beyond the ton scale, in order to probe the normal ordering region. This work explores the concept of searching for neutrinoless double-beta decay in a 10 kton scale liquid argon time projection chamber (LArTPC) located deep underground and doped with percent-level quantities of xenon. We discuss the design requirements, background mitigation and detector R&D needs, and considerations for deployment in a modified DUNE far detector module. We find that such a detector could reach $m_{ββ}$ sensitivity at the 2-4 meV range with xenon doping at 2% if significant background reductions can be achieved.
