The electron capture 163Ho experiment ECHo
The determination of the absolute scale of the neutrino masses is one of the most challenging present questions in particle physics. The most stringent limit, $$m(\bar{\nu }_{\mathrm {e}})< 2$$m(ν¯e)<2 eV, was achieved for the electron anti-neutrino mass. Different approaches are followed to r...
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| Hauptverfasser: | , , , , , , , , , , , , , , , , , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
3 May 2014
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| In: |
Journal of low temperature physics
Year: 2014, Jahrgang: 176, Heft: 5, Pages: 876-884 |
| ISSN: | 1573-7357 |
| DOI: | 10.1007/s10909-014-1187-4 |
| Online-Zugang: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1007/s10909-014-1187-4 Verlag, lizenzpflichtig, Volltext: https://link.springer.com/article/10.1007%2Fs10909-014-1187-4 
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| Verfasserangaben: | L. Gastaldo · K. Blaum · A. Doerr · Ch.E. Düllmann · K. Eberhardt · S. Eliseev · C. Enss · Amand Faessler · A. Fleischmann · S. Kempf · M. Krivoruchenko · S. Lahiri · M. Maiti · Yu.N. Novikov · P.C.-O. Ranitzsch · F. Simkovic · Z. Szusc · M. Wegner |
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| 245 | 1 | 4 | |a The electron capture 163Ho experiment ECHo |c L. Gastaldo · K. Blaum · A. Doerr · Ch.E. Düllmann · K. Eberhardt · S. Eliseev · C. Enss · Amand Faessler · A. Fleischmann · S. Kempf · M. Krivoruchenko · S. Lahiri · M. Maiti · Yu.N. Novikov · P.C.-O. Ranitzsch · F. Simkovic · Z. Szusc · M. Wegner |
| 246 | 3 | 3 | |a The electron capture one hundred sixty-three Ho experiment ECHo |
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| 520 | |a The determination of the absolute scale of the neutrino masses is one of the most challenging present questions in particle physics. The most stringent limit, $$m(\bar{\nu }_{\mathrm {e}})< 2$$m(ν¯e)<2 eV, was achieved for the electron anti-neutrino mass. Different approaches are followed to reach a sensitivity on neutrino masses in the sub-eV range. Among them, experiments exploring the beta decay or electron capture of suitable nuclides can provide information on the electron neutrino mass value. We present the electron capture $$^{163}$$163Ho experiment ECHo, which aims to investigate the electron neutrino mass in the sub-eV range by means of the analysis of the calorimetrically measured energy spectrum following electron capture in $$^{163}$$163Ho. A high precision and high statistics spectrum will be measured with arrays of metallic magnetic calorimeters. We discuss some of the essential aspects of ECHo to reach the proposed sensitivity: detector optimization and performance, multiplexed readout, $$^{163}$$163Ho source production and purification, as well as a precise theoretical and experimental parameterization of the calorimetric EC spectrum including in particular the value of $$Q_{\mathrm {EC}}$$QEC. We present preliminary results obtained with a first prototype of single channel detectors as well as a first 64-pixel chip with integrated micro-wave SQUID multiplexer, which will already allow to investigate $$m(\nu _{\mathrm {e}})$$m(νe)in the eV range. | ||
| 700 | 1 | |a Blaum, K. |e VerfasserIn |4 aut | |
| 700 | 1 | |a Doerr, A. |e VerfasserIn |4 aut | |
| 700 | 1 | |a Düllmann, Ch. E. |e VerfasserIn |4 aut | |
| 700 | 1 | |a Eberhardt, K. |e VerfasserIn |4 aut | |
| 700 | 1 | |a Eliseev, S. |e VerfasserIn |4 aut | |
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| 700 | 1 | |a Lahiri, S. |e VerfasserIn |4 aut | |
| 700 | 1 | |a Maiti, M. |e VerfasserIn |4 aut | |
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| 700 | 1 | |a Wegner, Mathias |d 1986- |e VerfasserIn |0 (DE-588)1176685597 |0 (DE-627)1047656418 |0 (DE-576)516756893 |4 aut | |
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