XLZD稀有事件探测器中中性子无双贝塔衰变灵敏度研究
仪器与探测器
2025-05-01 v2 高能物理 - 实验
核实验
摘要
XLZD合作组正在开发一个具有活跃质量为60至80吨的两相-xenon时间投影鼓腔，能够将剩余的WIMP-核子相互作用参数空间探测到所谓的‘中子雾’区域。本文展示了基于当前使用相同技术的运行中探测器性能以及探测器材料中实际降低辐射活性，的确切实验还能够使用天然丰度的xenon目标，对 Xe 中的中性子无双贝塔衰变进行具有竞争力的搜索。XLZD通过10年数据采集，能够实现5.7×10^{27}年（对应90%置信区间排除1.3×10^{28}年）的3σ发现潜力，对应Majorana质量范围为7.3-31.3 meV（4.8-20.5 meV）。因此，XLZD将排除反窝向质量空间，并开始探测大多数社区常考虑的核矩阵元的正常窝向区域。
引用
@article{arxiv.2410.19016,
title = {Neutrinoless Double Beta Decay Sensitivity of the XLZD Rare Event Observatory},
author = {XLZD Collaboration and J. Aalbers and K. Abe and M. Adrover and S. Ahmed Maouloud and D. S. Akerib and A. K. Al Musalhi and F. Alder and L. Althueser and D. W. P. Amaral and C. S. Amarasinghe and A. Ames and B. Andrieu and N. Angelides and E. Angelino and B. Antunovic and E. Aprile and H. M. Araújo and J. E. Armstrong and M. Arthurs and M. Babicz and D. Bajpai and A. Baker and M. Balzer and J. Bang and E. Barberio and J. W. Bargemann and E. Barillier and A. Basharina-Freshville and L. Baudis and D. Bauer and M. Bazyk and K. Beattie and N. Beaupere and N. F. Bell and L. Bellagamba and T. Benson and A. Bhatti and T. P. Biesiadzinski and R. Biondi and Y. Biondi and H. J. Birch and E. Bishop and A. Bismark and C. Boehm and K. Boese and A. Bolotnikov and P. Brás and R. Braun and A. Breskin and C. A. J. Brew and S. Brommer and A. Brown and G. Bruni and R. Budnik and S. Burdin and C. Cai and C. Capelli and G. Carini and M. C. Carmona-Benitez and M. Carter and A. Chauvin and A. 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journal= {arXiv preprint arXiv:2410.19016},
year = {2025}
}
备注
29 pages, 7 figures