Nuclear structure of 82Kr and 82Se relevant for neutrinoless double-beta decay
Nuclear Resonance Fluorescence (NRF) experiments on the nuclei 82Kr and 82Se were performed, that are a candidates for a mother-daughter pair for the hypothetical neutrinoless double-beta (0νββ) decay. The experiment aimed at providing high-precision data to benchmark theoretical calculations of the...
| Main Authors: | , , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
EDP Sciences
2018-01-01
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| Series: | EPJ Web of Conferences |
| Online Access: | https://doi.org/10.1051/epjconf/201819402004 |
| _version_ | 1818590069657698304 |
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| author | Gayer Udo Werner Volker Beck Tobias Finch Sean Kleemann Jörn Krishichayan Löher Bastian Papst Oliver Pietralla Norbert Ries Philipp Christian Savran Deniz Weinert Michael Tornow Werner |
| author_facet | Gayer Udo Werner Volker Beck Tobias Finch Sean Kleemann Jörn Krishichayan Löher Bastian Papst Oliver Pietralla Norbert Ries Philipp Christian Savran Deniz Weinert Michael Tornow Werner |
| author_sort | Gayer Udo |
| collection | DOAJ |
| description | Nuclear Resonance Fluorescence (NRF) experiments on the nuclei 82Kr and 82Se were performed, that are a candidates for a mother-daughter pair for the hypothetical neutrinoless double-beta (0νββ) decay. The experiment aimed at providing high-precision data to benchmark theoretical calculations of the nuclear matrix elements involved in this exotic decay mode. We have investigated the excitation energy range from 2.3MeV to 4.2MeV, where the nuclear scissors mode is expected to be located in nuclei of this mass region. Our experiment was able to constrain decay branches of the scissors mode down to a level of a few percents, comparable to previous experiments on heavy deformed 0νββ decay candidates. Reduced transition strengths of the magnetic dipole-excited states have been determined by a method that exploits the non-resonant background in the NRF spectra. They are compared to a calculation within the nuclear shell model for 82Se, which reveals their mixed orbital and spin character, hinting at a more complex microscopic structure of low-lying 1+ states. |
| first_indexed | 2024-12-16T09:50:41Z |
| format | Article |
| id | doaj.art-9c28d33ebf09406e9b2537cedbc9ffdc |
| institution | Directory Open Access Journal |
| issn | 2100-014X |
| language | English |
| last_indexed | 2024-12-16T09:50:41Z |
| publishDate | 2018-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | EPJ Web of Conferences |
| spelling | doaj.art-9c28d33ebf09406e9b2537cedbc9ffdc2022-12-21T22:36:04ZengEDP SciencesEPJ Web of Conferences2100-014X2018-01-011940200410.1051/epjconf/201819402004epjconf_nsrt2018_02004Nuclear structure of 82Kr and 82Se relevant for neutrinoless double-beta decayGayer UdoWerner VolkerBeck TobiasFinch SeanKleemann JörnKrishichayanLöher BastianPapst OliverPietralla NorbertRies Philipp ChristianSavran DenizWeinert MichaelTornow WernerNuclear Resonance Fluorescence (NRF) experiments on the nuclei 82Kr and 82Se were performed, that are a candidates for a mother-daughter pair for the hypothetical neutrinoless double-beta (0νββ) decay. The experiment aimed at providing high-precision data to benchmark theoretical calculations of the nuclear matrix elements involved in this exotic decay mode. We have investigated the excitation energy range from 2.3MeV to 4.2MeV, where the nuclear scissors mode is expected to be located in nuclei of this mass region. Our experiment was able to constrain decay branches of the scissors mode down to a level of a few percents, comparable to previous experiments on heavy deformed 0νββ decay candidates. Reduced transition strengths of the magnetic dipole-excited states have been determined by a method that exploits the non-resonant background in the NRF spectra. They are compared to a calculation within the nuclear shell model for 82Se, which reveals their mixed orbital and spin character, hinting at a more complex microscopic structure of low-lying 1+ states.https://doi.org/10.1051/epjconf/201819402004 |
| spellingShingle | Gayer Udo Werner Volker Beck Tobias Finch Sean Kleemann Jörn Krishichayan Löher Bastian Papst Oliver Pietralla Norbert Ries Philipp Christian Savran Deniz Weinert Michael Tornow Werner Nuclear structure of 82Kr and 82Se relevant for neutrinoless double-beta decay EPJ Web of Conferences |
| title | Nuclear structure of 82Kr and 82Se relevant for neutrinoless double-beta decay |
| title_full | Nuclear structure of 82Kr and 82Se relevant for neutrinoless double-beta decay |
| title_fullStr | Nuclear structure of 82Kr and 82Se relevant for neutrinoless double-beta decay |
| title_full_unstemmed | Nuclear structure of 82Kr and 82Se relevant for neutrinoless double-beta decay |
| title_short | Nuclear structure of 82Kr and 82Se relevant for neutrinoless double-beta decay |
| title_sort | nuclear structure of 82kr and 82se relevant for neutrinoless double beta decay |
| url | https://doi.org/10.1051/epjconf/201819402004 |
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