Direct neutrino-mass measurement with sub-electronvolt sensitivity

Aker, M.; Beglarian, A.; Behrens, J.; Berlev, A.; Besserer, U.; Bieringer, B.; Block, F.; Bobien, S.; Boettcher, M.; Bornschein, B.; Bornschein, L.; Brunst, T.; Caldwell, T. S.; Carney, R. M. D.; La Cascio, L.; Chilingaryan, S.; Choi, W.; Debowski, K.; Deffert, M.; Descher, M.; Barrero, D. Diaz; Doe, P. J.; Dragoun, O.; Drexlin, G.; Eitel, K.; Ellinger, E.; Engel, R.; Enomoto, S.; Felden, A.; Formaggio, J. A.; Fraenkle, F. M.; Franklin, G. B.; Friedel, F.; Fulst, A.; Gauda, K.; Gil, W.; Glueck, F.; Groessle, R.; Gumbsheimer, R.; Gupta, V; Hoehn, T.; Hannen, V; Haussmann, N.; Helbing, K.; Hickford, S.; Hiller, R.; Hillesheimer, D.; Hinz, D.; Houdy, T.; Huber, A.; Jansen, A.; Karl, C.; Kellerer, F.; Kellerer, J.; Kleifges, M.; Klein, M.; Koehler, C.; Koellenberger, L.; Kopmann, A.; Korzeczek, M.; Kovalik, A.; Krasch, B.; Krause, H.; Kunka, N.; Lasserre, T.; Le, T. L.; Lebeda, O.; Lehnert, B.; Lokhov, A.; Machatschek, M.; Malcherek, E.; Mark, M.; Marsteller, A.; Martin, E. L.; Melzer, C.; Menshikov, A.; Mertens, S.; Mostafa, J.; Mueller, K.; Neumann, H.; Niemes, S.; Oelpmann, P.; Parno, D. S.; Poon, A. W. P.; Poyato, J. M. L.; Priester, F.; Ramachandran, S.; Robertson, R. G. H.; Rodejohann, W.; Roellig, M.; Roettele, C.; Rodenbeck, C.; Rysavy, M.; Sack, R.; Saenz, A.; Schaefer, P.; Pollithy, A. Schaller Nee; Schimpf, L.; Schloesser, K.; Schloesser, M.; Schlueter, L.; Schneidewind, S.; Schrank, M.; Schulz, B.; Schwemmer, A.; Sibille, V; Siegmann, D.; Slezak, M.; Spanier, F.; Steidl, M.; Sturm, M.; Sun, M.; Tcherniakhovski, D.; Telle, H. H.; Thorne, L. A.; Thuemmler, T.; Titov, N.; Tkachev, I; Urban, K.; Valerius, K.; Venos, D.; Hernandez, A. P. Vizcaya; Weinheimer, C.; Welte, S.; Wendel, J.; Wilkerson, J. F.; Wolf, J.; Wuestling, S.; Wydra, J.; Xu, W.; Yen, Y-R; Zadoroghny, S.; Zeller, G.

doi:10.1038/s41567-021-01463-1

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Direct neutrino-mass measurement with sub-electronvolt sensitivity

Aker, M., Beglarian, A., Behrens, J., Berlev, A., Besserer, U., Bieringer, B., et al. (2022). Direct neutrino-mass measurement with sub-electronvolt sensitivity. Nature Physics, 18(2), 160-166. doi:10.1038/s41567-021-01463-1.

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Item Permalink: https://hdl.handle.net/21.11116/0000-000A-DC05-9 Version Permalink: https://hdl.handle.net/21.11116/0000-000A-DC06-8

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Aker, M.¹, Author
Beglarian, A.¹, Author
Behrens, J.¹, Author
Berlev, A.¹, Author
Besserer, U.¹, Author
Bieringer, B.¹, Author
Block, F.¹, Author
Bobien, S.¹, Author
Boettcher, M.¹, Author
Bornschein, B.¹, Author
Bornschein, L.¹, Author
Brunst, T.¹, Author
Caldwell, T. S.¹, Author
Carney, R. M. D.¹, Author
La Cascio, L.¹, Author
Chilingaryan, S.¹, Author
Choi, W.¹, Author
Debowski, K.¹, Author
Deffert, M.¹, Author
Descher, M.¹, Author
Barrero, D. Diaz¹, AuthorDoe, P. J.¹, AuthorDragoun, O.¹, AuthorDrexlin, G.¹, AuthorEitel, K.¹, AuthorEllinger, E.¹, AuthorEngel, R.¹, AuthorEnomoto, S.¹, AuthorFelden, A.¹, AuthorFormaggio, J. A.¹, AuthorFraenkle, F. M.¹, AuthorFranklin, G. B.¹, AuthorFriedel, F.¹, AuthorFulst, A.¹, AuthorGauda, K.¹, AuthorGil, W.¹, AuthorGlueck, F.¹, AuthorGroessle, R.¹, AuthorGumbsheimer, R.¹, AuthorGupta, V¹, AuthorHoehn, T.¹, AuthorHannen, V¹, AuthorHaussmann, N.¹, AuthorHelbing, K.¹, AuthorHickford, S.¹, AuthorHiller, R.¹, AuthorHillesheimer, D.¹, AuthorHinz, D.¹, AuthorHoudy, T.¹, AuthorHuber, A.¹, AuthorJansen, A.¹, AuthorKarl, C.¹, AuthorKellerer, F.¹, AuthorKellerer, J.¹, AuthorKleifges, M.¹, AuthorKlein, M.¹, AuthorKoehler, C.¹, AuthorKoellenberger, L.¹, AuthorKopmann, A.¹, AuthorKorzeczek, M.¹, AuthorKovalik, A.¹, AuthorKrasch, B.¹, AuthorKrause, H.¹, AuthorKunka, N.¹, AuthorLasserre, T.¹, AuthorLe, T. L.¹, AuthorLebeda, O.¹, AuthorLehnert, B.¹, AuthorLokhov, A.¹, AuthorMachatschek, M.¹, AuthorMalcherek, E.¹, AuthorMark, M.¹, AuthorMarsteller, A.¹, AuthorMartin, E. L.¹, AuthorMelzer, C.¹, AuthorMenshikov, A.¹, AuthorMertens, S.¹, AuthorMostafa, J.¹, AuthorMueller, K.¹, AuthorNeumann, H.¹, AuthorNiemes, S.¹, AuthorOelpmann, P.¹, AuthorParno, D. S.¹, AuthorPoon, A. W. P.¹, AuthorPoyato, J. M. L.¹, AuthorPriester, F.¹, AuthorRamachandran, S.¹, AuthorRobertson, R. G. H.¹, AuthorRodejohann, W.², Author Roellig, M.¹, AuthorRoettele, C.¹, AuthorRodenbeck, C.¹, AuthorRysavy, M.¹, AuthorSack, R.¹, AuthorSaenz, A.¹, AuthorSchaefer, P.¹, AuthorPollithy, A. Schaller Nee¹, AuthorSchimpf, L.¹, AuthorSchloesser, K.¹, AuthorSchloesser, M.¹, AuthorSchlueter, L.¹, AuthorSchneidewind, S.¹, AuthorSchrank, M.¹, AuthorSchulz, B.¹, AuthorSchwemmer, A.¹, AuthorSibille, V¹, AuthorSiegmann, D.¹, AuthorSlezak, M.¹, AuthorSpanier, F.¹, AuthorSteidl, M.¹, AuthorSturm, M.¹, AuthorSun, M.¹, AuthorTcherniakhovski, D.¹, AuthorTelle, H. H.¹, AuthorThorne, L. A.¹, AuthorThuemmler, T.¹, AuthorTitov, N.¹, AuthorTkachev, I¹, AuthorUrban, K.¹, AuthorValerius, K.¹, AuthorVenos, D.¹, AuthorHernandez, A. P. Vizcaya¹, AuthorWeinheimer, C.¹, AuthorWelte, S.¹, AuthorWendel, J.¹, AuthorWilkerson, J. F.¹, AuthorWolf, J.¹, AuthorWuestling, S.¹, AuthorWydra, J.¹, AuthorXu, W.¹, AuthorYen, Y-R¹, AuthorZadoroghny, S.¹, AuthorZeller, G.¹, Author more..

Affiliations:
1external, ou_persistent22
2Werner Rodejohann - ERC Starting Grant, Junior Research Groups, MPI for Nuclear Physics, Max Planck Society, ou_907556

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Abstract: Since the discovery of neutrino oscillations, we know that neutrinos have non-zero mass. However, the absolute neutrino-mass scale remains unknown. Here we report the upper limits on effective electron anti-neutrino mass, m(nu), from the second physics run of the Karlsruhe Tritium Neutrino experiment. In this experiment, m(nu) is probed via a high-precision measurement of the tritium beta-decay spectrum close to its endpoint. This method is independent of any cosmological model and does not rely on assumptions whether the neutrino is a Dirac or Majorana particle. By increasing the source activity and reducing the background with respect to the first physics campaign, we reached a sensitivity on m(nu) of 0.7 eV c(-2) at a 90% confidence level (CL). The best fit to the spectral data yields m(nu)(2) = (0.26 +/- 0.34) eV(2) c(-4), resulting in an upper limit of m(nu) < 0.9 eV c(-2) at 90% CL. By combining this result with the first neutrino-mass campaign, we find an upper limit of m(nu) < 0.8 eV c(-2) at 90% CL.

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Dates: Date issued: 2022-02-14

Publication Status: Issued

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Identifiers: DOI: 10.1038/s41567-021-01463-1

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Title: Nature Physics

Other : Nat. Phys.

Source Genre: Journal

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Publ. Info: London : Nature Pub. Group

Pages: - Volume / Issue: 18 (2) Sequence Number: - Start / End Page: 160 - 166 Identifier: ISSN: 1745-2473
CoNE: https://pure.mpg.de/cone/journals/resource/1000000000025850