Afach, S. - Resultados da pesquisa - CERN Document Server

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Measurement of the Permanent Electric Dipole Moment of the Neutron / Abel, C. (Sussex U.) ; Afach, S. (PSI, Villigen ; Zurich, ETH) ; Ayres, N.J. (Sussex U. ; Zurich, ETH) ; Baker, C.A. (Rutherford) ; Ban, G. (Caen U.) ; Bison, G. (PSI, Villigen) ; Bodek, K. (Jagiellonian U.) ; Bondar, V. (PSI, Villigen ; Zurich, ETH ; Leuven U.) ; Burghoff, M. (Berlin, Phys. Tech. Bund.) ; Chanel, E. (U. Bern, AEC) et al.
We present the result of an experiment to measure the electric dipole moment (EDM) of the neutron at the Paul Scherrer Institute using Ramsey's method of separated oscillating magnetic fields with ultracold neutrons (UCN). Our measurement stands in the long history of EDM experiments probing physics violating time reversal invariance. [...]
arXiv:2001.11966.- 2020-02-29 - 7 p. - Published in : Phys. Rev. Lett. 124 (2020) 081803 Article from SCOAP3: PDF; Fulltext: PDF;

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Optically pumped Cs magnetometers enabling a high-sensitivity search for the neutron electric dipole moment / Abel, C. (Sussex U.) ; Afach, S. (PSI, Villigen ; Zurich, ETH) ; Ayres, N.J. (Sussex U. ; Zurich, ETH) ; Ban, G. (Caen U.) ; Bison, G. (PSI, Villigen) ; Bodek, K. (Jagiellonian U.) ; Bondar, V. (PSI, Villigen ; Zurich, ETH ; Leuven U.) ; Chanel, E. (U. Bern, AEC) ; Chiu, P.-J (PSI, Villigen ; Zurich, ETH) ; Crawford, C.B. (Kentucky U.) et al.
An array of sixteen laser-pumped scalar Cs magnetometers was part of the neutron electric dipole moment (nEDM) experiment taking data at the Paul Scherrer Institute in 2015 and 2016. It was deployed to measure the gradients of the experiment's magnetic field and to monitor their temporal evolution. [...]
arXiv:1912.04631.- 2020-05-12 - 17 p. - Published in : Phys. Rev. A 101 (2020) 053419 Fulltext: PDF;

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A Revised Experimental Upper Limit on the Electric Dipole Moment of the Neutron / Pendlebury, J M (Sussex U.) ; Afach, S (PSI, Villigen ; Zurich, ETH) ; Ayres, N J (Sussex U.) ; Baker, C A (Rutherford) ; Ban, G (Caen U.) ; Bison, G (PSI, Villigen) ; Bodek, K (Jagiellonian U) ; Burghoff, M (Berlin, Phys. Tech. Bund.) ; Geltenbort, P (Laue-Langevin Inst.) ; Green, K (Guelph U. ; Rutherford) et al.
We present for the first time a detailed and comprehensive analysis of the experimental results that set the current world sensitivity limit on the magnitude of the electric dipole moment (EDM) of the neutron. We have extended and enhanced our earlier analysis to include recent developments in the understanding of the effects of gravity in depolarizing ultracold neutrons (UCN); an improved calculation of the spectrum of the neutrons; and conservative estimates of other possible systematic errors, which are also shown to be consistent with more recent measurements undertaken with the apparatus. [...]
arXiv:1509.04411.- 2015 - 23 p. - Published in : Phys. Rev. D 92 (2015) 092003 APS Open Access article: PDF; External link: Preprint

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Gravitational Depolarization of Ultracold Neutrons: Comparison with Data / Afach, S (Zurich, ETH) ; Ayres, N J ; Baker, C A (Rutherford) ; Ban, G (Caen U.) ; Bison, G (PSI, Villigen) ; Bodek, K (Jagiellonian U.) ; Fertl, M (PSI, Villigen ; Zurich, ETH) ; Franke, B (PSI, Villigen ; Zurich, ETH) ; Geltenbort, P (Laue-Langevin Inst.) ; Green, K (Guelph U. ; Rutherford) et al.
We compare the expected effects of so-called gravitationally enhanced depolarization of ultracold neutrons to measurements carried out in a spin-precession chamber exposed to a variety of vertical magnetic-field gradients. In particular, we have investigated the dependence upon these field gradients of spin depolarization rates and also of shifts in the measured neutron Larmor precession frequency. [...]
arXiv:1506.06563.- 2015 - 10 p. - Published in : Phys. Rev. D 92 (2015) 052008 APS Open Access article: PDF; External link: Preprint

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Veja também: nomes de autores similares
10	Afach, S
1	Afach, Samer

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