N. J. Ayres, G. Ban, L. Bienstman, G. Bison, K. Bodek, V. Bondar, T. Bouillaud, E. Chanel, J. Chen, P. -J. Chiu, B. Clément, C. Crawford, M. Daum, B. Dechenaux,… 展开作者
N. J. Ayres, G. Ban, L. Bienstman, G. Bison, K. Bodek, V. Bondar, T. Bouillaud, E. Chanel, J. Chen, P. -J. Chiu, B. Clément, C. Crawford, M. Daum, B. Dechenaux, C. B. Doorenbos, S. Emmenegger, L. Ferraris-Bouchez, M. Fertl, A. Fratangelo, P. Flaux, D. Goupillière, W. C. Griffith, Z. D. Grujic, P. G. Harris, K. Kirch, P. A. Koss, J. Krempel, B. Lauss, T. Lefort, Y. Lemière, A. Leredde, M. Meier, J. Menu, D. A. Mullins, O. Naviliat-Cuncic, D. Pais, F. M. Piegsa, G. Pignol, G. Quéméner, M. Rawlik, D. Rebreyend, I. Rienäcker, D. Ries, S. Roccia, K. U. Ross, D. Rozpedzik, W. Saenz, P. Schmidt-Wellenburg, A. Schnabel, N. Severijns, B. Shen, T. Stapf, K. Svirina, R. Tavakoli Dinani, S. Touati, J. Thorne, R. Virot, J. Voigt, N. Yazdandoost, J. Zejma, G. Zsigmond
We present the design of a next-generation experiment, n2EDM, currently under construction at the ultracold neutron source at the Paul Scherrer Institute (PSI) with the aim of carrying out a high-precision search for an electric dipole moment of the neutron. The project builds on experience gained with the previous apparatus operated at PSI until 2017, and is expected to deliver an order of magnitude better sensitivity with provision for further substantial improvements. An overview is given of the experimental method and setup, the sensitivity requirements for the apparatus are derived, and its technical design is described.
Improved search for neutron to mirror-neutron oscillations in the presence of mirror magnetic fields with a dedicated apparatus at the PSI UCN source
虽然Paul Scherrer研究所（PSI）的国际nEDM合作在2017年获得的数据覆盖了假设中子（$n$）到镜像中子（$n'$）跃迁的声称潜在信号的相当大一部分参数空间，但它无法在各种镜像磁场下测试所有声称的信号区域。因此，PSI正在进行一项使用储存超冷中子（UCN）的$n-n'$振荡的新研究，大大扩展了镜像磁场（$B'$）和振荡时间常数（$τ_{nn'}$）参数空间的范围。新装置的设计是为了测试储存的超冷中子作为施加磁场的函数的异常损失。该实验与以前的实验不同之处在于它有一个非常大的储存容器（1.47 m $^3$），提高了它的统计灵敏度。在2020年的测试实验中，我们展示了我们设备的能力。然而，对我们最近数据的全面分析仍有待进行。基于已经证明的性能，我们将达到对振荡时间$τ_{nn'}/\sqrt{\cos(β)}$的灵敏度远高于100秒，其中$β$是$B'$和所施加的磁场$B$之间的角度。$B$的扫描将允许发现或全面排除在以前的实验分析中报告的潜在信号，并建议与中子到镜像中子振荡一致。
ITACA revisited: Ion Tracking Apparatus with CMOS ASICs
Donostia International Physics Center（多诺西亚国际物理中心）；Ben-Gurion University of the Negev（内盖夫本-古里安大学）；Instituto de Física Corpuscular (IFIC, CSIC-UV)（粒子物理研究所（IFIC，CSIC-UV））
