{"paper":{"title":"Observation of gravitationally induced vertical striation of polarized ultracold neutrons by spin-echo spectroscopy","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["nucl-ex"],"primary_cat":"physics.ins-det","authors_text":"A. Kozela, A. Mtchedlishvili, A. Weis, B. Franke, B. Lauss, C. Plonka-Spehr, D. Rebreyend, D. Ries, D. Rozpedzik, E. Wursten, F.M. Piegsa, G. Ban, G. Bison, G. Pignol, G. Qu\\'em\\'ener, G. Wyszynski, G. Zsigmond, H.-C. Koch, J.A. Thorne, J. Krempel, J.M. Pendlebury, J. Zejma, J. Zenner, K. Bodek, K. Kirch, M. Daum, M. Fertl, M. Kasprzak, M. Musgrave, M. Rawlik, N.J. Ayres, N. Severijns, O. Naviliat-Cuncic, P.G. Harris, P. Knowles, P.N. Prashanth, P. Schmidt-Wellenburg, S. Afach, S. Komposch, S. Roccia, T. Lefort, V. H\\'elaine, W.C. Griffith, W. Heil, Y. Kermaidic, Y. Lemi\\`ere, Z. Chowdhuri, Z.D. Gruji\\'c","submitted_at":"2015-06-01T11:17:05Z","abstract_excerpt":"We describe a spin-echo method for ultracold neutrons (UCNs) confined in a precession chamber and exposed to a $|B_0|=1~\\text{\\mu T}$ magnetic field. We have demonstrated that the analysis of UCN spin-echo resonance signals in combination with knowledge of the ambient magnetic field provides an excellent method by which to reconstruct the energy spectrum of a confined ensemble of neutrons. The method takes advantage of the relative dephasing of spins arising from a gravitationally induced striation of stored UCN of different energies, and also permits an improved determination of the vertical "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1506.00446","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}