{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,23]],"date-time":"2026-06-23T10:33:58Z","timestamp":1782210838838,"version":"3.54.5"},"reference-count":63,"publisher":"MDPI AG","issue":"2","license":[{"start":{"date-parts":[[2022,1,25]],"date-time":"2022-01-25T00:00:00Z","timestamp":1643068800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Symmetry"],"abstract":"<jats:p>The possibility that a neutron can be transformed to a hidden sector particle remains intriguingly open. Proposed theoretical models conjecture that the hidden sector can be represented by a mirror sector, and the neutron n can oscillate into its sterile mirror twin n\u2032, exactly or nearly degenerate in mass with n. Oscillations n\u2212n\u2032 can take place in vacuum or in an environment containing regular matter and a magnetic field, in which only the neutron will be subject to interactions with the environment. We describe the propagation of the oscillating n\u2212n\u2032 system in a cold neutron beam passing through dense absorbing materials in connection to the possible regeneration type of experiments, where the effect of n\u2192n\u2032\u2192n transformation can be observed.<\/jats:p>","DOI":"10.3390\/sym14020230","type":"journal-article","created":{"date-parts":[[2022,1,25]],"date-time":"2022-01-25T21:07:11Z","timestamp":1643144831000},"page":"230","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":12,"title":["Neutron-Mirror Neutron Oscillations in Absorbing Matter"],"prefix":"10.3390","volume":"14","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-3789-7152","authenticated-orcid":false,"given":"Yuri","family":"Kamyshkov","sequence":"first","affiliation":[{"name":"Department of Physics and Astronomy, The University of Tennessee, Knoxville, TN 37996, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2643-411X","authenticated-orcid":false,"given":"James","family":"Ternullo","sequence":"additional","affiliation":[{"name":"Department of Physics and Astronomy, The University of Tennessee, Knoxville, TN 37996, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5961-0688","authenticated-orcid":false,"given":"Louis","family":"Varriano","sequence":"additional","affiliation":[{"name":"Department of Physics, University of Chicago, Chicago, IL 60637, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4156-1686","authenticated-orcid":false,"given":"Zurab","family":"Berezhiani","sequence":"additional","affiliation":[{"name":"Dipartimento di Fisica e Chimica, Universit\u00e1 di L\u2019Aquila, 67100 L\u2019Aquila, Italy"},{"name":"Laboratori Nazionali del Gran Sasso, INFN, 67100 L\u2019Aquila, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2022,1,25]]},"reference":[{"key":"ref_1","first-page":"837","article-title":"On the possibility of experimental observation of mirror particles","volume":"3","author":"Kobzarev","year":"1966","journal-title":"Sov. 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