杰斐逊实验室束流倾倒实验(BDX)中的暗物质搜索
仪器与探测器
2014-06-13 v1 天体物理仪器与方法
高能物理 - 实验
高能物理 - 唯象学
核实验
摘要
MeV-GeV暗物质(DM)在理论上动机充分但尚未被充分探索。这份意向书展示了在一个1 m的分段塑料闪烁体探测器中的MeV-GeV DM发现潜力，该探测器放置在杰斐逊实验室(JLab)高强束流实验厅之一的束流倾倒下游，一年内可接收高达10个靶上电子(EOT)。该实验(束流倾倒实验，BDX)对DM-核子弹性散射的灵敏度达到每年数千计数水平，具有非常低的阈值反冲能量(~1 MeV)，仅受可减少的宇宙成因本底限制。在要求探测器内所有电磁簇射超过几百MeV后，对DM-电子弹性散射和/或非弹性DM的灵敏度将低于每年10个计数，这大大减少或完全消除了所有本底。详细的蒙特卡罗模拟正在进行中，以最终确定探测器设计和实验设置。一个基于相同技术的现有0.036 m原型将用于通过本底率估计验证模拟，推动必要的研发以实现优化的探测器。最终的探测器设计和实验设置将在提交给下一届JLab PAC的完整提案中呈现。一个完全实现的实验将对DM参数空间的大片区域敏感，在MeV-GeV DM质量范围内，其发现潜力超过现有和计划中的实验两个数量级。
引用
@article{arxiv.1406.3028,
title = {Dark matter search in a Beam-Dump eXperiment (BDX) at Jefferson Lab},
author = {BDX Collaboration and M. Battaglieri and A. Celentano and R. De Vita and E. Izaguirre and G. Krnjaic and E. Smith and S. Stepanyan and A. Bersani and E. Fanchini and S. Fegan and P. Musico and M. Osipenko and M. Ripani and E. Santopinto and M. Taiuti and P. Schuster and N. Toro and M. Dalton and A. Freyberger and F. -X. Girod and V. Kubarovsky and M. Ungaro and G. De Cataldo and R. De Leo and D. Di Bari and L. Lagamba and E. Nappi and R. Perrino and M. Carpinelli and V. Sipala and S. Aiello and V. Bellini and M. De Napoli and A. Giusa and F. Mammoliti and E. Leonora and F. Noto and N. Randazzo and G. Russo and M. Sperduto and C. Sutera and C. Ventura and L. Barion and G. Ciullo and M. Contalbrigo and P. Lenisa and A. Movsisyan and F. Spizzo and M. Turisini and F. De Persio and E. Cisbani and C. Fanelli and F. Garibaldi and F. Meddi and G. M. Urciuoli and S. Anefalos Pereira and E. De Sanctis and D. Hasch and V. Lucherini and M. Mirazita and R. Montgomery and S. Pisano and G. Simi and A. D'Angelo and L. Colaneri L. Lanza and A. Rizzo and C. Schaerf and I. Zonta and D. Calvo and A. Filippi and M. Holtrop and R. Peremuzyan and D. Glazier and D. Ireland and B. McKinnon and D. Sokhan A. Afanasev and B. Briscoe and N. Kalantarians and L. El Fassi and L. Weinstein and P. Beltrame and A. Murphy and D. Watts and L. Zana and K. Hicks},
journal= {arXiv preprint arXiv:1406.3028},
year = {2014}
}
备注
28 pages, 17 figures, submitted to JLab PAC 42