A search for neutron to mirror-neutron oscillations using the nEDM apparatus at PSI
| Autor: | Georg Bison, T. Lefort, I. Rienäcker, J. Thorne, Zoran D. Grujić, Prajwal Mohanmurthy, J. Krempel, A. Kozela, Philipp Schmidt-Wellenburg, Nathal Severijns, Florian M. Piegsa, Klaus Kirch, Jacek Zejma, D. Ries, C. Abel, Bernhard Lauss, M. Daum, W. C. Griffith, Nora Hild, Oscar Naviliat-Cuncic, P.-J. Chiu, P. A. Koss, V. Bondar, P. Flaux, L. Ferraris-Bouchez, D. Rozpedzik, Geza Zsigmond, A. Leredde, N. J. Ayres, S. Roccia, M. Rawlik, Christopher Crawford, Kazimierz Bodek, E. Chanel, Reza Tavakoli Dinani, H. C. Koch, Antoine Weis, G. Ban, Guillaume Pignol, D. Rebreyend, E. Wursten, D. Pais, S. Emmenegger |
|---|---|
| Přispěvatelé: | Laboratoire de physique corpusculaire de Caen (LPCC), Université de Caen Normandie (UNICAEN), Normandie Université (NU)-Normandie Université (NU)-École Nationale Supérieure d'Ingénieurs de Caen (ENSICAEN), Normandie Université (NU)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA), Institut Laue-Langevin (ILL), ILL, nEDM |
| Rok vydání: | 2021 |
| Předmět: |
Nuclear and High Energy Physics
Neutron electric dipole moment media_common.quotation_subject magnetic field Weak interaction [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex] Astronomy & Astrophysics 01 natural sciences 7. Clean energy Asymmetry rotation Physics Particles & Fields ELECTRIC-DIPOLE MOMENT weak interaction 0103 physical sciences Dark matter DARK-MATTER Neutron 010306 general physics numerical calculations mirror Nuclear matter media_common oscillation: time Physics n: electric moment Properties of neutrons Ultracold neutrons Nuclear matter Mirror matter Dark matter Particle symmetries Science & Technology Properties of neutrons Particle symmetries 010308 nuclear & particles physics parity: symmetry [PHYS.PHYS.PHYS-GEN-PH]Physics [physics]/Physics [physics]/General Physics [physics.gen-ph] lcsh:QC1-999 Mirror matter Magnetic field MODEL Physics Nuclear [PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph] Physical Sciences Ultracold neutrons Atomic physics asymmetry lcsh:Physics |
| Zdroj: | Physics Letters B Physics Letters B, Vol 812, Iss, Pp 135993-(2021) 'Physics Letters B ', vol: 812, pages: 135993-1-135993-7 (2021) Physics Letters Phys.Lett.B Phys.Lett.B, 2021, 812, pp.135993. ⟨10.1016/j.physletb.2020.135993⟩ |
| ISSN: | 0370-2693 |
| DOI: | 10.1016/j.physletb.2020.135993 |
| Popis: | It has been proposed that there could be a mirror copy of the standard model particles, restoring the parity symmetry in the weak interaction on the global level. Oscillations between a neutral standard model particle, such as the neutron, and its mirror counterpart could potentially answer various standing issues in physics today. Astrophysical studies and terrestrial experiments led by ultracold neutron storage measurements have investigated neutron to mirror-neutron oscillations and imposed constraints on the theoretical parameters. Recently, further analysis of these ultracold neutron storage experiments has yielded statistically significant anomalous signals that may be interpreted as neutron to mirror-neutron oscillations, assuming nonzero mirror magnetic fields. The neutron electric dipole moment collaboration performed a dedicated search at the Paul Scherrer Institute and found no evidence of neutron to mirror-neutron oscillations. Thereby, the following new lower limits on the oscillation time were obtained: τnn′>352 s at B′=0 (95% C.L.), τnn′>6s for 0.4μT |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect