An improved upper limit on the neutrino mass from a direct kinematic method by KATRIN
Creators: name: Aker, M.
name: Altenmüller, K.
name: Arenz, M.
name: Babutzka, M.
name: Barrett, J.
name: Bauer, S.
name: Beck, M.
name: Beglarian, A.
name: Behrens, J.
name: Bergmann, T.
name: Besserer, U.
name: Blaum, K.
name: Block, F.
name: Bobien, S.
name: Bokeloh, K.
name: Bonn, J.
name: Bornschein, B.
name: Bornschein, L.
name: Bouquet, H.
name: Brunst, T.
name: Caldwell, T. S.
name: La Cascio, L.
name: Chilingaryan, S.
name: Choi, W.
name: Corona, T. J.
name: Debowski, K.
name: Deffert, M.
name: Descher, M.
name: Doe, P. J.
name: Dragoun, O.
name: Drexlin, G.
name: Dunmore, J. A.
name: Dyba, S.
name: Edzards, F.
name: Eisenblätter, L.
name: Eitel, K.
name: Ellinger, E.
name: Engel, R.
name: Enomoto, S.
name: Erhard, M.
name: Eversheim, D.
name: Fedkevych, M.
name: Felden, A.
name: Fischer, S.
name: Flatt, B.
name: Formaggio, J. A.
name: Fränkle, F. M.
name: Franklin, G. B.
name: Frankrone, H.
name: Friedel, F.
name: Fuchs, D.
name: Fulst, A.
name: Furse, D.
name: Gauda, K.
name: Gemmeke, H.
name: Gil, W.
name: Glück, F.
name: Görhardt, S.
name: Groh, S.
name: Grohmann, S.
name: Grössle, R.
name: Gumbsheimer, R.
name: Minh, M. Ha
name: Hackenjos, M.
name: Hannen, V.
name: Harms, F.
name: Hartmann, J.
name: Haußmann, N.
name: Heizmann, F.
name: Helbing, K.
name: Hickford, S.
name: Hilk, D.
name: Hillen, B.
name: Hillesheimer, D.
name: Hinz, D.
name: Höhn, T.
name: Holzapfel, B.
name: Holzmann, S.
name: Houdy, T.
name: Howe, M. A.
name: Huber, A.
name: Jansen, A.
name: Kaboth, A.
name: Karl, C.
name: Kazachenko, O.
name: Kellerer, J.
name: Kernert, N.
name: Kippenbrock, L.
name: Kleesiek, M.
name: Klein, M.
name: Köhler, C.
name: Köllenberger, L.
name: Kopmann, A.
name: Korzeczek, M.
name: Kosmider, A.
name: Kovalí, A.
name: Krasch, B.
name: Kraus, M.
name: Krause, H.
name: Kuckert, L.
name: Kuffner, B.
name: Kunka, N.
name: Lasserre, T.
name: Le, T. L.
name: Lebeda, O.
name: Leber, M.
name: Lehnert, B.
name: Letnev, J.
name: Leven, F.
name: Lichter, S.
name: Lobashev, V. M.
name: Lokhov, A.
name: Machatschek, M.
name: Malcherek, E.
name: Müller, K.
name: Mark, M.
name: Marsteller, A.
name: Martin, E. L.
name: Melzer, C.
name: Menshikov, A.
name: Mertens, S.
name: Minter, L. I.
name: Mirz, S.
name: Monreal, B.
name: Guzman, P. I. Morales
name: Müller, K.
name: Naumann, U.
name: Ndeke, W.
name: Neumann, H.
name: Niemes, S.
name: Noe, M.
name: Oblath, N. S.
name: Ortjohann, H. -W.
name: Osipowicz, A.
name: Ostrick, B.
name: Otten, E.
name: Parno, D. S.
name: Phillips, D. G.
name: Plischke, P.
name: Pollithy, A.
name: Poon, A. W. P.
name: Pouryamout, J.
name: Prall, M.
name: Priester, F.
name: Röllig, M.
name: Röttele, C.
name: Ranitzsch, P. C. -O.
name: Rest, O.
name: Rinderspacher, R.
name: Robertson, R. G. H.
name: Rodenbeck, C.
name: Rohr, P.
name: Roll, Ch.
name: Rupp, S.
name: Rysavy, M.
name: Sack, R.
name: Saenz, A.
name: Schäfer, P.
name: Schimpf, L.
name: Schlösser, K.
name: Schlösser, M.
name: Schlüter, L.
name: Schön, H.
name: Schönung, K.
name: Schrank, M.
name: Schulz, B.
name: Schwarz, J.
name: Seitz-Moskaliuk, H.
name: Seller, W.
name: Sibille, V.
name: Siegmann, D.
name: Skasyrskaya, A.
name: Slezak, M.
name: Spalek, A.
name: Spanier, F.
name: Steidl, M.
name: Steinbrink, N.
name: Sturm, M.
name: Suesser, M.
name: Sun, M.
name: Tcherniakhovski, D.
name: Telle, H. H.
name: Thümmler, T.
name: Thorne, L. A.
name: Titov, N.
name: Tkachev, I.
name: Trost, N.
name: Urban, K.
name: Venos, D.
name: Valerius, K.
name: VanDevender, B. A.
name: Vianden, R.
name: Hernandez, A. P. Vizcaya
name: Wall, B. L.
name: Wüstling, S.
name: Weber, M.
name: Weinheimer, C.
name: Weiss, C.
name: Welte, S.
name: Wendel, J.
name: Wierman, K. J.
name: Wilkerson, J. F.
name: Wolf, J.
name: Xu, W.
name: Yen, Y. -R.
name: Zacher, M.
name: Zadorozhny, S.
name: Zboril, M.
name: Zeller, G.
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Nuclear Experiment (nucl-ex)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences
subject: FOS: Physical sciences

description: We report on the neutrino mass measurement result from the first four-week science run of the Karlsruhe Tritium Neutrino experiment KATRIN in spring 2019. Beta-decay electrons from a high-purity gaseous molecular tritium source are energy analyzed by a high-resolution MAC-E filter. A fit of the integrated electron spectrum over a narrow interval around the kinematic endpoint at 18.57 keV gives an effective neutrino mass square value of $(-1.0^{+0.9}_{-1.1})$ eV$^2$. From this we derive an upper limit of 1.1 eV (90$\%$ confidence level) on the absolute mass scale of neutrinos. This value coincides with the KATRIN sensitivity. It improves upon previous mass limits from kinematic measurements by almost a factor of two and provides model-independent input to cosmological studies of structure formation.