6533b7d9fe1ef96bd126ce6a
RESEARCH PRODUCT
Measurement of the permanent electric dipole moment of the neutron
I. RienäckerV. HélaineM. DaumPrajwal MohanmurthyJ. A. ThorneJ. KrempelJ. ZennerS. RocciaJacek ZejmaMartin BurghoffE. WurstenN. J. AyresG. WyszynskiW. C. GriffithG. BanM. G. D. Van Der GrintenR. VirotC. AbelBernhard LaussFlorian M. PiegsaP. N. PrashanthP. J. ChiuChristopher CrawfordNathal SeverijnsOscar Naviliat-cuncicAntoine WeisS. AfachGuillaume PignolM. KuźniakJens-uwe VoigtR. Tavakoli DinaniA. KnechtC. Plonka-spehrGeza ZsigmondD. RozpedzikZ. HodgeA. KraftMartin FertlP. FlauxReinhold HenneckP. A. KossM. HorrasG. RogelY. KermaidicE. PierrePaul E. KnowlesS. KomposchA. KozelaGeorg BisonM. RawlikD. RebreyendE. ChanelL. Ferraris-bouchezZ. ChowdhuriD. RiesP. GeltenbortKlaus KirchL. HayenZoran D. GrujićK. GreenY. LemièreWerner HeilG. QuéménerP. Schmidt-wellenburgS. N. IvanovC.a. BakerH. C. KochP. IaydjievV. BondarT. LefortB. ClementMalgorzata KasprzakA. MtchedlishviliPhilip HarrisAllard SchnabelM. MusgraveS. EmmeneggerD. ShiersD. PaisN. HildA. FratangeloKazimierz BodekB. FrankeA. Lereddesubject
Physics - Instrumentation and DetectorsMagnetometerFOS: Physical sciencesGeneral Physics and Astronomy01 natural sciencesMeasure (mathematics)S017EDMlaw.inventionHigh Energy Physics - ExperimentHigh Energy Physics - Experiment (hep-ex)statistical analysislawcesium0103 physical sciences[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]time reversal: invarianceStatistical analysisNeutronNuclear Physics - ExperimentPhysics::Atomic Physics[PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det]Nuclear Experiment (nucl-ex)Detectors and Experimental Techniques010306 general physicsNuclear ExperimentNuclear ExperimentPhysicsn: electric momentInstrumentation and Detectors (physics.ins-det)Cesium vaporMagnetic fieldElectric dipole moment* Automatic Keywords *Ultracold neutronsElementary Particles and FieldshistoryAtomic physicstime reversal: violationmagnetic field: oscillationParticle Physics - Experimentdescription
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. Our measurement stands in the long history of EDM experiments probing physics violating time-reversal invariance. The salient features of this experiment were the use of a 199Hg comagnetometer and an array of optically pumped cesium vapor magnetometers to cancel and correct for magnetic-field changes. The statistical analysis was performed on blinded datasets by two separate groups, while the estimation of systematic effects profited from an unprecedented knowledge of the magnetic field. The measured value of the neutron EDM is dn=(0.0±1.1stat±0.2sys)×10−26 e.cm.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2020-02-28 |