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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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2.
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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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3.
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Data blinding for the nEDM experiment at PSI
/ Ayres, N.J. (Zurich, ETH ; Sussex U.) ; Ban, G. (Caen U.) ; Bison, G. (PSI, Villigen) ; Bodek, K. (Jagiellonian U.) ; Bondar, V. (Zurich, ETH ; PSI, Villigen ; Leuven U.) ; Chanel, E. (U. Bern, AEC) ; Chiu, P.J. (PSI, Villigen ; Zurich, ETH) ; Crawford, C.B. (Kentucky U.) ; Daum, M. (PSI, Villigen) ; Emmenegger, S. (Zurich, ETH) et al.
Psychological bias towards, or away from, a prior measurement or a theory prediction is an intrinsic threat to any data analysis. While various methods can be used to avoid the bias, e.g. [...]
arXiv:1912.09244.-
2021-04-28 - 13 p.
- Published in : Eur. Phys. J. A
Fulltext: PDF; Fulltext from Publisher: PDF;
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5.
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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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6.
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The $\beta-\gamma$ decay of $^{21}$Na
/ Achouri, N.L. (Caen U.) ; Angelique, J.C. (Caen U.) ; Ban, G. (Caen U.) ; Bastin, B. (Caen U.) ; Blank, B. (CENBG, Gradignan) ; Dean, S. (Groningen U.) ; Dendooven, P. (Groningen U.) ; Giovinazzo, J. (CENBG, Gradignan) ; Grevy, S. (GANIL) ; Jungmann, K. (Groningen U.) et al.
A new and independent determination of the Gamow-Teller branching ratio in the beta-decay of 21Na is reported. The value obtained of 5.13 +- 0.43 % is in agreement with the currently adopted value and the most recent measurement. [...]
arXiv:0906.5571.-
2009 - 13 p.
- Published in : J. Phys. G 37 (2010) 045103
Fulltext: PDF; External link: Preprint
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Measurement of the beta-nu Correlation in 6He Using a Transparent Paul Trap
/ Liénard, E ; Ban, G ; Darius, G ; Durand, D ; Fléchard, X ; Herbane, M ; Labalme, M ; Mauger, F ; Mery, A ; Naviliat-Cuncic, O et al.
2006
- Published in : AIP Conf. Proc.: 831 (2006) , pp. 44-48
External link: Published version from AIP
In : International Conference on Frontiers in Nuclear Structures, Astrophysics and Reactions, Kos, Greece, 12 - 17 Sep 2005, pp.44-48
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9.
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Transport and cooling of singly-charged noble gas ion beams
/ Ban, G (Caen U.) ; Darius, G. (Caen U.) ; Durand, D. (Caen U.) ; Flechard, X. (Caen U.) ; Herbane, M. (Caen U.) ; Labalme, M. (Caen U.) ; Lienard, E. (Caen U.) ; Mauger, F. (Caen U.) ; Naviliat-Cuncic, O. (Caen U.) ; Guenaut, C. (CSNSM, Orsay) et al.
The transport and cooling of noble gas singly-charged ion beams by means of a Radio Frequency Quadrupole Cooler Buncher (RFQCB) have been studied at the LIMBE low energy beam line of the GANIL facility. Ions as light as $^{4}He^+$ have been cooled and stored before their extraction in bunches using $H_2$ as buffer gas. [...]
nucl-ex/0309020.-
2004 - 15 p.
- Published in : Nucl. Instrum. Methods Phys. Res., A 518 (2004) 712-720
Fulltext: PDF; External link: nucl-ex/0309020 PDF
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