Articles syndiqués
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[hal-01645919] Search for Axionlike Dark Matter through Nuclear Spin Precession in Electric and Magnetic Fields
24 novembre 2017, par C. Abel, N.J. Ayres, G. Ban, G. Bison, K. BodekWe report on a search for ultra-low-mass axion-like dark matter by analysing the ratio of the spin-precession frequencies of stored ultracold neutrons and $^199$Hg atoms for an axion-induced oscillating electric dipole moment of the neutron and an axion-wind spin-precession effect. No signal (...) -
[hal-01642614] Search for Axionlike Dark Matter through Nuclear Spin Precession in Electric and Magnetic Fields
22 novembre 2017, par C. Abel, N.J. Ayres, G. Ban, G. Bison, K. BodekWe report on a search for ultra-low-mass axion-like dark matter by analysing the ratio of the spin-precession frequencies of stored ultracold neutrons and $^199$Hg atoms for an axion-induced oscillating electric dipole moment of the neutron and an axion-wind spin-precession effect. No signal (...) -
[hal-01642862] Highly stable atomic vector magnetometer based on free spin precession
22 novembre 2017, par S. Afach, G. Ban, G. Bison, K. Bodek, Z. ChowdhuriWe present a magnetometer based on optically pumped Cs atoms that measures the magnitude and direction of a 1 $\mu$T magnetic field. Multiple circularly polarized laser beams were used to probe the free spin precession of the Cs atoms. The design was optimized for long-time stability and (...) -
[hal-01642856] Neutron production in neutron-induced reactions at 96 MeV on $^{56}Fe$ and $^{208}Pb$
22 novembre 2017, par I.C. Sagrado Garcia, J.F. Lecolley, F.R. Lecolley, V. Blideanu, G. BanDouble-differential cross sections for neutron production were measured in 96-MeV neutron-induced reactions at The Svedberg Laboratory in Uppsala, Sweden. Measurements for Fe and Pb targets were performed using two independent setups: DECOI-DEMON, time-of-flight telescope dedicated to the (...) -
[hal-01642943] An endoscopic detector for ultracold neutrons
22 novembre 2017, par Z. Chowdhuri, M. Fertl, F. Gray, R. Henneck, K. KirchA new versatile detector for ultracold neutrons (UCN) has been built and operated which combines multi-pixel photon counters and GS10 lithium-doped scintillators. Such detectors can be very small and can be used to monitor UCN inside storage vessels or guides with negligible influence (of order (...)
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