6533b855fe1ef96bd12aff98

RESEARCH PRODUCT

Comparison of ultracold neutron sources for fundamental physics measurements

D. RiesP. GeltenbortMarcus BeckGeza ZsigmondS. KarpukP. Schmidt-wellenburgT. BrennerK. U. RossT. JenkeO. ZimmerNorbert TrautmannKlaus EberhardtM. DaumGeorg BisonKlaus KirchChristopher GeppertJ. KahlenbergBernhard LaussWerner HeilTobias ReichJ. KarchY. SobolevC. Siemensen

subject

Physics - Instrumentation and DetectorsPhysics beyond the Standard ModelFOS: Physical sciences[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]7. Clean energy01 natural sciencesNuclear physics25.40Fq0103 physical sciencesCP: violationNeutron[PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det][ PHYS.NEXP ] Physics [physics]/Nuclear Experiment [nucl-ex]Nuclear Experiment (nucl-ex)010306 general physicsNuclear Experiment[ PHYS.PHYS.PHYS-INS-DET ] Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det]Nuclear ExperimentPhysicsn: densityn: electric moment010308 nuclear & particles physics29.25.Dzn: particle sourceInstrumentation and Detectors (physics.ins-det)31.30.jn28.20.Pr3. Good healthFundamental physicsMoment (physics)14.20.DhUltracold neutronsNeutron sourceBeam (structure)

description

Ultracold neutrons (UCNs) are key for precision studies of fundamental parameters of the neutron and in searches for new CP violating processes or exotic interactions beyond the Standard Model of particle physics. The most prominent example is the search for a permanent electric dipole moment of the neutron (nEDM). We have performed an experimental comparison of the leading UCN sources currently operating. We have used a 'standard' UCN storage bottle with a volume of 32 liters, comparable in size to nEDM experiments, which allows us to compare the UCN density available at a given beam port.

10.1103/physrevc.95.045503https://hal.archives-ouvertes.fr/hal-01554584