E-viri
Recenzirano
Odprti dostop
-
Sachdeva, N.; Fan, I.; Babcock, E.; Burghoff, M.; Chupp, T. E.; Degenkolb, S.; Fierlinger, P.; Haude, S.; Kraegeloh, E.; Kilian, W.; Knappe-Grüneberg, S.; Kuchler, F.; Liu, T.; Marino, M.; Meinel, J.; Rolfs, K.; Salhi, Z.; Schnabel, A.; Singh, J. T.; Stuiber, S.; Terrano, W. A.; Trahms, L.; Voigt, J.
Physical review letters, 10/2019, Letnik: 123, Številka: 14Journal Article
We report results of a new technique to measure the electric dipole moment of 129Xe with 3He comagnetometry. In this work, both species are polarized using spin-exchange optical pumping, transferred to a measurement cell, and transported into a magnetically shielded room, where SQUID magnetometers detect free precession in applied electric and magnetic fields. The result from a one week measurement campaign in 2017 and a 2.5 week campaign in 2018, combined with detailed study of systematic effects, is dA(129Xe) = 1.4 ± 6.6stat ± 2.0syst) × 10–28 e cm. This corresponds to an upper limit of |dA(129Xe)| < 1.4 × 10–27 e cm (95% C.L.), a factor of 5 more sensitive than the limit set in 2001.
