What is recorded here?
Abel and colleagues searched for a permanent neutron electric dipole moment using ultracold neutrons and magnetic-field monitoring at the Paul Scherrer Institute. Two blinded analysis teams reported a result consistent with zero, dₙ = (0.0 ± 1.1 statistical ± 0.2 systematic) × 10⁻²⁶ e cm, corresponding to an upper limit of 1.8 × 10⁻²⁶ e cm at 90% confidence.
Source-linked catalogue note. A detailed explanatory guide has not yet been prepared for this entry.
Scientific scope
The measurement is a finite-sensitivity null result, not a detection of a neutron electric dipole moment or a demonstration that it is exactly zero. The 2015–2016 data were analyzed with a mercury co-magnetometer and cesium magnetometer array; the reported value depends on magnetic-gradient corrections and estimated systematic errors. Two teams analyzed differently blinded versions of the same underlying data, not two independent experiments. Their midpoint forms the reported central value. The cited author manuscript lists 84 contributors. The raw data and separate calibration analyses require independent evaluation, and the final journal text may differ.
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People and systems
C. Abel; S. Afach; N. J. Ayres; C. A. Baker; G. Ban; G. Bison; K. Bodek; V. Bondar; M. Burghoff; E. Chanel; Z. Chowdhuri; P.-J. Chiu; B. Clement; C. B. Crawford; M. Daum; S. Emmenegger; L. Ferraris-Bouchez; M. Fertl; P. Flaux; B. Franke; A. Fratangelo; P. Geltenbort; K. Green; W. C. Griffith; M. van der Grinten; Z. D. Grujić; P. G. Harris; L. Hayen; W. Heil; R. Henneck; V. Hélaine; N. Hild; Z. Hodge; M. Horras; P. Iaydjiev; S. N. Ivanov; M. Kasprzak; Y. Kermaidic; K. Kirch; A. Knecht; P. Knowles; H.-C. Koch; P. A. Koss; S. Komposch; A. Kozela; A. Kraft; J. Krempel; M. Kuźniak; B. Lauss; T. Lefort; Y. Lemière; A. Leredde; P. Mohanmurthy; A. Mtchedlishvili; M. Musgrave; O. Naviliat-Cuncic; D. Pais; F. M. Piegsa; E. Pierre; G. Pignol; C. Plonka-Spehr; P. N. Prashanth; G. Quéméner; M. Rawlik; D. Rebreyend; I. Rienäcker; D. Ries; S. Roccia; G. Rogel; D. Rozpedzik; A. Schnabel; P. Schmidt-Wellenburg; N. Severijns; D. Shiers; R. Tavakoli Dinani; J. A. Thorne; R. Virot; J. Voigt; A. Weis; E. Wursten; G. Wyszynski; J. Zejma; J. Zenner; G. Zsigmond
These are the listed authors of the cited contribution sources. Paper authorship does not quantify individual effort. An incomplete list is explicitly marked; same names are not automatically merged.
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English catalogue narrative
Search for a permanent neutron electric dipole moment at PSI
Abel and colleagues searched for a permanent neutron electric dipole moment using ultracold neutrons and magnetic-field monitoring at the Paul Scherrer Institute. Two blinded analysis teams reported a result consistent with zero, dₙ = (0.0 ± 1.1 statistical ± 0.2 systematic) × 10⁻²⁶ e cm, corresponding to an upper limit of 1.8 × 10⁻²⁶ e cm at 90% confidence.
Scientific scope
The measurement is a finite-sensitivity null result, not a detection of a neutron electric dipole moment or a demonstration that it is exactly zero. The 2015–2016 data were analyzed with a mercury co-magnetometer and cesium magnetometer array; the reported value depends on magnetic-gradient corrections and estimated systematic errors. Two teams analyzed differently blinded versions of the same underlying data, not two independent experiments. Their midpoint forms the reported central value. The cited author manuscript lists 84 contributors. The raw data and separate calibration analyses require independent evaluation, and the final journal text may differ.
Reading status
This is a source-linked WRS catalogue note. A full explanatory guide and independent scientific reconstruction have not been completed for this entry. Read the identified original work for its complete narrative and arguments.
People and systems
C. Abel; S. Afach; N. J. Ayres; C. A. Baker; G. Ban; G. Bison; K. Bodek; V. Bondar; M. Burghoff; E. Chanel; Z. Chowdhuri; P.-J. Chiu; B. Clement; C. B. Crawford; M. Daum; S. Emmenegger; L. Ferraris-Bouchez; M. Fertl; P. Flaux; B. Franke; A. Fratangelo; P. Geltenbort; K. Green; W. C. Griffith; M. van der Grinten; Z. D. Grujić; P. G. Harris; L. Hayen; W. Heil; R. Henneck; V. Hélaine; N. Hild; Z. Hodge; M. Horras; P. Iaydjiev; S. N. Ivanov; M. Kasprzak; Y. Kermaidic; K. Kirch; A. Knecht; P. Knowles; H.-C. Koch; P. A. Koss; S. Komposch; A. Kozela; A. Kraft; J. Krempel; M. Kuźniak; B. Lauss; T. Lefort; Y. Lemière; A. Leredde; P. Mohanmurthy; A. Mtchedlishvili; M. Musgrave; O. Naviliat-Cuncic; D. Pais; F. M. Piegsa; E. Pierre; G. Pignol; C. Plonka-Spehr; P. N. Prashanth; G. Quéméner; M. Rawlik; D. Rebreyend; I. Rienäcker; D. Ries; S. Roccia; G. Rogel; D. Rozpedzik; A. Schnabel; P. Schmidt-Wellenburg; N. Severijns; D. Shiers; R. Tavakoli Dinani; J. A. Thorne; R. Virot; J. Voigt; A. Weis; E. Wursten; G. Wyszynski; J. Zejma; J. Zenner; G. Zsigmond
These are the listed authors of the cited contribution sources. Paper authorship does not quantify individual effort. An incomplete list is explicitly marked; same names are not automatically merged.