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Title: Improved Upper Limit on the Neutrino Mass from a Direct Kinematic Method by KATRIN

Abstract

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.

Authors:
; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; more »; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ORCiD logo; ; ; ; ; ; ; ; ; ; ; ; ; « less
Publication Date:
Research Org.:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States); Carnegie Mellon Univ., Pittsburgh, PA (United States); University of North Carolina, Chapel Hill, NC (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Nuclear Physics (NP); Helmholtz Association; Helmholtz Alliance for Astroparticle Physics (HAP); Helmholtz Young Investigator Group; German Research Foundation (DFG); Czech Ministry of Education, Youth and Sport; USDOE Office of Science (SC), High Energy Physics (HEP)
Contributing Org.:
KATRIN Collaboration
OSTI Identifier:
1575798
Alternate Identifier(s):
OSTI ID: 1582624; OSTI ID: 1617833; OSTI ID: 1658874; OSTI ID: 1658946; OSTI ID: 1755497
Grant/Contract Number:  
AC02-05CH11231; 5A17PDA; 5A17PM3; 05A17PX3; 05A17VK2; 05A17WO3; VH-NG-1055; GRK 1694; GRK 2149; GSC105-KSETA; CANAM-LM2011019; LTT19005; FG02-97ER41020; FG02-94ER40818; SC0004036; FG02-97ER41033; FG02-97ER41041; SC0011091; SC0019304; SC0010118
Resource Type:
Published Article
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Name: Physical Review Letters Journal Volume: 123 Journal Issue: 22; Journal ID: ISSN 0031-9007
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; neutrinos; neutrino; neutrino mass; tritium; 73 NUCLEAR PHYSICS AND RADIATION PHYSICS

Citation Formats

Aker, M., Altenmüller, K., Arenz, M., Babutzka, M., Barrett, J., Bauer, S., Beck, M., Beglarian, A., Behrens, J., Bergmann, T., Besserer, U., Blaum, K., Block, F., Bobien, S., Bokeloh, K., Bonn, J., Bornschein, B., Bornschein, L., Bouquet, H., Brunst, T., Caldwell, T. S., La Cascio, L., Chilingaryan, S., Choi, W., Corona, T. J., Debowski, K., Deffert, M., Descher, M., Doe, P. J., Dragoun, O., Drexlin, G., Dunmore, J. A., Dyba, S., Edzards, F., Eisenblätter, L., Eitel, K., Ellinger, E., Engel, R., Enomoto, S., Erhard, M., Eversheim, D., Fedkevych, M., Felden, A., Fischer, S., Flatt, B., Formaggio, J. A., Fränkle, F. M., Franklin, G. B., Frankrone, H., Friedel, F., Fuchs, D., Fulst, A., Furse, D., Gauda, K., Gemmeke, H., Gil, W., Glück, F., Görhardt, S., Groh, S., Grohmann, S., Grössle, R., Gumbsheimer, R., Ha Minh, M., Hackenjos, M., Hannen, V., Harms, F., Hartmann, J., Haußmann, N., Heizmann, F., Helbing, K., Hickford, S., Hilk, D., Hillen, B., Hillesheimer, D., Hinz, D., Höhn, T., Holzapfel, B., Holzmann, S., Houdy, T., Howe, M. A., Huber, A., James, T. M., Jansen, A., Kaboth, A., Karl, C., Kazachenko, O., Kellerer, J., Kernert, N., Kippenbrock, L., Kleesiek, M., Klein, M., Köhler, C., Köllenberger, L., Kopmann, A., Korzeczek, M., Kosmider, A., Kovalík, A., Krasch, B., Kraus, M., Krause, H., Kuckert, L., Kuffner, B., Kunka, N., Lasserre, T., Le, T. L., Lebeda, O., Leber, M., Lehnert, B., Letnev, J., Leven, F., Lichter, S., Lobashev, V. M., Lokhov, A., Machatschek, M., Malcherek, E., Müller, K., Mark, M., Marsteller, A., Martin, E. L., Melzer, C., Menshikov, A., Mertens, S., Minter, L. I., Mirz, S., Monreal, B., Morales Guzmán, P. I., Müller, K., Naumann, U., Ndeke, W., Neumann, H., Niemes, S., Noe, M., Oblath, N. S., Ortjohann, H. -W., Osipowicz, A., Ostrick, B., Otten, E., Parno, D. S., Phillips, D. G., Plischke, P., Pollithy, A., Poon, A. W. P., Pouryamout, J., Prall, M., Priester, F., Röllig, M., Röttele, C., Ranitzsch, P. C. -O., Rest, O., Rinderspacher, R., Robertson, R. G. H., Rodenbeck, C., Rohr, P., Roll, Ch., Rupp, S., Ryšavý, M., Sack, R., Saenz, A., Schäfer, P., Schimpf, L., Schlösser, K., Schlösser, M., Schlüter, L., Schön, H., Schönung, K., Schrank, M., Schulz, B., Schwarz, J., Seitz-Moskaliuk, H., Seller, W., Sibille, V., Siegmann, D., Skasyrskaya, A., Slezák, M., Špalek, A., Spanier, F., Steidl, M., Steinbrink, N., Sturm, M., Suesser, M., Sun, M., Tcherniakhovski, D., Telle, H. H., Thümmler, T., Thorne, L. A., Titov, N., Tkachev, I., Trost, N., Urban, K., Vénos, D., Valerius, K., VanDevender, B. A., Vianden, R., Vizcaya Hernández, A. P., Wall, B. L., Wüstling, S., Weber, M., Weinheimer, C., Weiss, C., Welte, S., Wendel, J., Wierman, K. J., Wilkerson, J. F., Wolf, J., Xu, W., Yen, Y. -R., Zacher, M., Zadorozhny, S., Zbořil, M., Zeller, G., and KATRIN Collaboration. Improved Upper Limit on the Neutrino Mass from a Direct Kinematic Method by KATRIN. United States: N. p., 2019. Web. doi:10.1103/PhysRevLett.123.221802.
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Aker, M., Altenmüller, K., Arenz, M., Babutzka, M., Barrett, J., Bauer, S., Beck, M., Beglarian, A., Behrens, J., Bergmann, T., Besserer, U., Blaum, K., Block, F., Bobien, S., Bokeloh, K., Bonn, J., Bornschein, B., Bornschein, L., Bouquet, H., Brunst, T., Caldwell, T. S., La Cascio, L., Chilingaryan, S., Choi, W., Corona, T. J., Debowski, K., Deffert, M., Descher, M., Doe, P. J., Dragoun, O., Drexlin, G., Dunmore, J. A., Dyba, S., Edzards, F., Eisenblätter, L., Eitel, K., Ellinger, E., Engel, R., Enomoto, S., Erhard, M., Eversheim, D., Fedkevych, M., Felden, A., Fischer, S., Flatt, B., Formaggio, J. A., Fränkle, F. M., Franklin, G. B., Frankrone, H., Friedel, F., Fuchs, D., Fulst, A., Furse, D., Gauda, K., Gemmeke, H., Gil, W., Glück, F., Görhardt, S., Groh, S., Grohmann, S., Grössle, R., Gumbsheimer, R., Ha Minh, M., Hackenjos, M., Hannen, V., Harms, F., Hartmann, J., Haußmann, N., Heizmann, F., Helbing, K., Hickford, S., Hilk, D., Hillen, B., Hillesheimer, D., Hinz, D., Höhn, T., Holzapfel, B., Holzmann, S., Houdy, T., Howe, M. A., Huber, A., James, T. M., Jansen, A., Kaboth, A., Karl, C., Kazachenko, O., Kellerer, J., Kernert, N., Kippenbrock, L., Kleesiek, M., Klein, M., Köhler, C., Köllenberger, L., Kopmann, A., Korzeczek, M., Kosmider, A., Kovalík, A., Krasch, B., Kraus, M., Krause, H., Kuckert, L., Kuffner, B., Kunka, N., Lasserre, T., Le, T. L., Lebeda, O., Leber, M., Lehnert, B., Letnev, J., Leven, F., Lichter, S., Lobashev, V. M., Lokhov, A., Machatschek, M., Malcherek, E., Müller, K., Mark, M., Marsteller, A., Martin, E. L., Melzer, C., Menshikov, A., Mertens, S., Minter, L. I., Mirz, S., Monreal, B., Morales Guzmán, P. I., Müller, K., Naumann, U., Ndeke, W., Neumann, H., Niemes, S., Noe, M., Oblath, N. S., Ortjohann, H. -W., Osipowicz, A., Ostrick, B., Otten, E., Parno, D. S., Phillips, D. G., Plischke, P., Pollithy, A., Poon, A. W. P., Pouryamout, J., Prall, M., Priester, F., Röllig, M., Röttele, C., Ranitzsch, P. C. -O., Rest, O., Rinderspacher, R., Robertson, R. G. H., Rodenbeck, C., Rohr, P., Roll, Ch., Rupp, S., Ryšavý, M., Sack, R., Saenz, A., Schäfer, P., Schimpf, L., Schlösser, K., Schlösser, M., Schlüter, L., Schön, H., Schönung, K., Schrank, M., Schulz, B., Schwarz, J., Seitz-Moskaliuk, H., Seller, W., Sibille, V., Siegmann, D., Skasyrskaya, A., Slezák, M., Špalek, A., Spanier, F., Steidl, M., Steinbrink, N., Sturm, M., Suesser, M., Sun, M., Tcherniakhovski, D., Telle, H. H., Thümmler, T., Thorne, L. A., Titov, N., Tkachev, I., Trost, N., Urban, K., Vénos, D., Valerius, K., VanDevender, B. A., Vianden, R., Vizcaya Hernández, A. P., Wall, B. L., Wüstling, S., Weber, M., Weinheimer, C., Weiss, C., Welte, S., Wendel, J., Wierman, K. J., Wilkerson, J. F., Wolf, J., Xu, W., Yen, Y. -R., Zacher, M., Zadorozhny, S., Zbořil, M., Zeller, G., & KATRIN Collaboration. Improved Upper Limit on the Neutrino Mass from a Direct Kinematic Method by KATRIN. United States. https://doi.org/10.1103/PhysRevLett.123.221802
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Aker, M., Altenmüller, K., Arenz, M., Babutzka, M., Barrett, J., Bauer, S., Beck, M., Beglarian, A., Behrens, J., Bergmann, T., Besserer, U., Blaum, K., Block, F., Bobien, S., Bokeloh, K., Bonn, J., Bornschein, B., Bornschein, L., Bouquet, H., Brunst, T., Caldwell, T. S., La Cascio, L., Chilingaryan, S., Choi, W., Corona, T. J., Debowski, K., Deffert, M., Descher, M., Doe, P. J., Dragoun, O., Drexlin, G., Dunmore, J. A., Dyba, S., Edzards, F., Eisenblätter, L., Eitel, K., Ellinger, E., Engel, R., Enomoto, S., Erhard, M., Eversheim, D., Fedkevych, M., Felden, A., Fischer, S., Flatt, B., Formaggio, J. A., Fränkle, F. M., Franklin, G. B., Frankrone, H., Friedel, F., Fuchs, D., Fulst, A., Furse, D., Gauda, K., Gemmeke, H., Gil, W., Glück, F., Görhardt, S., Groh, S., Grohmann, S., Grössle, R., Gumbsheimer, R., Ha Minh, M., Hackenjos, M., Hannen, V., Harms, F., Hartmann, J., Haußmann, N., Heizmann, F., Helbing, K., Hickford, S., Hilk, D., Hillen, B., Hillesheimer, D., Hinz, D., Höhn, T., Holzapfel, B., Holzmann, S., Houdy, T., Howe, M. A., Huber, A., James, T. M., Jansen, A., Kaboth, A., Karl, C., Kazachenko, O., Kellerer, J., Kernert, N., Kippenbrock, L., Kleesiek, M., Klein, M., Köhler, C., Köllenberger, L., Kopmann, A., Korzeczek, M., Kosmider, A., Kovalík, A., Krasch, B., Kraus, M., Krause, H., Kuckert, L., Kuffner, B., Kunka, N., Lasserre, T., Le, T. L., Lebeda, O., Leber, M., Lehnert, B., Letnev, J., Leven, F., Lichter, S., Lobashev, V. M., Lokhov, A., Machatschek, M., Malcherek, E., Müller, K., Mark, M., Marsteller, A., Martin, E. L., Melzer, C., Menshikov, A., Mertens, S., Minter, L. I., Mirz, S., Monreal, B., Morales Guzmán, P. I., Müller, K., Naumann, U., Ndeke, W., Neumann, H., Niemes, S., Noe, M., Oblath, N. S., Ortjohann, H. -W., Osipowicz, A., Ostrick, B., Otten, E., Parno, D. S., Phillips, D. G., Plischke, P., Pollithy, A., Poon, A. W. P., Pouryamout, J., Prall, M., Priester, F., Röllig, M., Röttele, C., Ranitzsch, P. C. -O., Rest, O., Rinderspacher, R., Robertson, R. G. H., Rodenbeck, C., Rohr, P., Roll, Ch., Rupp, S., Ryšavý, M., Sack, R., Saenz, A., Schäfer, P., Schimpf, L., Schlösser, K., Schlösser, M., Schlüter, L., Schön, H., Schönung, K., Schrank, M., Schulz, B., Schwarz, J., Seitz-Moskaliuk, H., Seller, W., Sibille, V., Siegmann, D., Skasyrskaya, A., Slezák, M., Špalek, A., Spanier, F., Steidl, M., Steinbrink, N., Sturm, M., Suesser, M., Sun, M., Tcherniakhovski, D., Telle, H. H., Thümmler, T., Thorne, L. A., Titov, N., Tkachev, I., Trost, N., Urban, K., Vénos, D., Valerius, K., VanDevender, B. A., Vianden, R., Vizcaya Hernández, A. P., Wall, B. L., Wüstling, S., Weber, M., Weinheimer, C., Weiss, C., Welte, S., Wendel, J., Wierman, K. J., Wilkerson, J. F., Wolf, J., Xu, W., Yen, Y. -R., Zacher, M., Zadorozhny, S., Zbořil, M., Zeller, G., and KATRIN Collaboration. Mon . "Improved Upper Limit on the Neutrino Mass from a Direct Kinematic Method by KATRIN". United States. https://doi.org/10.1103/PhysRevLett.123.221802.
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@article{osti_1575798,
title = {Improved Upper Limit on the Neutrino Mass from a Direct Kinematic Method by KATRIN},
author = {Aker, M. and Altenmüller, K. and Arenz, M. and Babutzka, M. and Barrett, J. and Bauer, S. and Beck, M. and Beglarian, A. and Behrens, J. and Bergmann, T. and Besserer, U. and Blaum, K. and Block, F. and Bobien, S. and Bokeloh, K. and Bonn, J. and Bornschein, B. and Bornschein, L. and Bouquet, H. and Brunst, T. and Caldwell, T. S. and La Cascio, L. and Chilingaryan, S. and Choi, W. and Corona, T. J. and Debowski, K. and Deffert, M. and Descher, M. and Doe, P. J. and Dragoun, O. and Drexlin, G. and Dunmore, J. A. and Dyba, S. and Edzards, F. and Eisenblätter, L. and Eitel, K. and Ellinger, E. and Engel, R. and Enomoto, S. and Erhard, M. and Eversheim, D. and Fedkevych, M. and Felden, A. and Fischer, S. and Flatt, B. and Formaggio, J. A. and Fränkle, F. M. and Franklin, G. B. and Frankrone, H. and Friedel, F. and Fuchs, D. and Fulst, A. and Furse, D. and Gauda, K. and Gemmeke, H. and Gil, W. and Glück, F. and Görhardt, S. and Groh, S. and Grohmann, S. and Grössle, R. and Gumbsheimer, R. and Ha Minh, M. and Hackenjos, M. and Hannen, V. and Harms, F. and Hartmann, J. and Haußmann, N. and Heizmann, F. and Helbing, K. and Hickford, S. and Hilk, D. and Hillen, B. and Hillesheimer, D. and Hinz, D. and Höhn, T. and Holzapfel, B. and Holzmann, S. and Houdy, T. and Howe, M. A. and Huber, A. and James, T. M. and Jansen, A. and Kaboth, A. and Karl, C. and Kazachenko, O. and Kellerer, J. and Kernert, N. and Kippenbrock, L. and Kleesiek, M. and Klein, M. and Köhler, C. and Köllenberger, L. and Kopmann, A. and Korzeczek, M. and Kosmider, A. and Kovalík, A. and Krasch, B. and Kraus, M. and Krause, H. and Kuckert, L. and Kuffner, B. and Kunka, N. and Lasserre, T. and Le, T. L. and Lebeda, O. and Leber, M. and Lehnert, B. and Letnev, J. and Leven, F. and Lichter, S. and Lobashev, V. M. and Lokhov, A. and Machatschek, M. and Malcherek, E. and Müller, K. and Mark, M. and Marsteller, A. and Martin, E. L. and Melzer, C. and Menshikov, A. and Mertens, S. and Minter, L. I. and Mirz, S. and Monreal, B. and Morales Guzmán, P. I. and Müller, K. and Naumann, U. and Ndeke, W. and Neumann, H. and Niemes, S. and Noe, M. and Oblath, N. S. and Ortjohann, H. -W. and Osipowicz, A. and Ostrick, B. and Otten, E. and Parno, D. S. and Phillips, D. G. and Plischke, P. and Pollithy, A. and Poon, A. W. P. and Pouryamout, J. and Prall, M. and Priester, F. and Röllig, M. and Röttele, C. and Ranitzsch, P. C. -O. and Rest, O. and Rinderspacher, R. and Robertson, R. G. H. and Rodenbeck, C. and Rohr, P. and Roll, Ch. and Rupp, S. and Ryšavý, M. and Sack, R. and Saenz, A. and Schäfer, P. and Schimpf, L. and Schlösser, K. and Schlösser, M. and Schlüter, L. and Schön, H. and Schönung, K. and Schrank, M. and Schulz, B. and Schwarz, J. and Seitz-Moskaliuk, H. and Seller, W. and Sibille, V. and Siegmann, D. and Skasyrskaya, A. and Slezák, M. and Špalek, A. and Spanier, F. and Steidl, M. and Steinbrink, N. and Sturm, M. and Suesser, M. and Sun, M. and Tcherniakhovski, D. and Telle, H. H. and Thümmler, T. and Thorne, L. A. and Titov, N. and Tkachev, I. and Trost, N. and Urban, K. and Vénos, D. and Valerius, K. and VanDevender, B. A. and Vianden, R. and Vizcaya Hernández, A. P. and Wall, B. L. and Wüstling, S. and Weber, M. and Weinheimer, C. and Weiss, C. and Welte, S. and Wendel, J. and Wierman, K. J. and Wilkerson, J. F. and Wolf, J. and Xu, W. and Yen, Y. -R. and Zacher, M. and Zadorozhny, S. and Zbořil, M. and Zeller, G. and KATRIN Collaboration},
abstractNote = {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.},
doi = {10.1103/PhysRevLett.123.221802},
journal = {Physical Review Letters},
number = 22,
volume = 123,
place = {United States},
year = {Mon Nov 25 00:00:00 EST 2019},
month = {Mon Nov 25 00:00:00 EST 2019}
}
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  • Esfahani, Ali Ashtari; Asner, David M.; Böser, Sebastian
  • Journal of Physics G: Nuclear and Particle Physics, Vol. 44, Issue 5
  • DOI: 10.1088/1361-6471/aa5b4f

Global analysis of three-flavour neutrino oscillations: synergies and tensions in the determination of θ23, δCP, and the mass ordering
journal, January 2019

  • Esteban, Ivan; Gonzalez-Garcia, M. C.; Hernandez-Cabezudo, Alvaro
  • Journal of High Energy Physics, Vol. 2019, Issue 1
  • DOI: 10.1007/JHEP01(2019)106

Radon induced background processes in the KATRIN pre-spectrometer
journal, October 2011

First transmission of electrons and ions through the KATRIN beamline
journal, April 2018

Monitoring of the operating parameters of the KATRIN Windowless Gaseous Tritium Source
journal, October 2012

On a Monte Carlo method for measurement uncertainty evaluation and its implementation
journal, July 2014

Primordial Neutrinos
journal, November 2006

A pulsed, mono-energetic and angular-selective UV photo-electron source for the commissioning of the KATRIN experiment
journal, June 2017

Erratum to: Asymptotic formulae for likelihood-based tests of new physics
journal, July 2013

Asymptotic formulae for likelihood-based tests of new physics
journal, February 2011

Impact of a cryogenic baffle system on the suppression of radon-induced background in the KATRIN Pre-Spectrometer
journal, October 2018

Effects of Plasma Phenomena on Neutrino Mass Measurements Process Using a Gaseous Tritium β-Source
journal, August 2005

  • Nastoyashchii, Anatoly F.; Titov, Nikita A.; Morozov, Igor N.
  • Fusion Science and Technology, Vol. 48, Issue 1
  • DOI: 10.13182/FST05-A1028

Kassiopeia: a modern, extensible C++ particle tracking package
journal, May 2017

On the use of the covariance matrix to fit correlated data
journal, July 1994

  • D'Agostini, G.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 346, Issue 1-2
  • DOI: 10.1016/0168-9002(94)90719-6

Confidence intervals with a priori parameter bounds
journal, May 2015

Direct Evidence for Neutrino Flavor Transformation from Neutral-Current Interactions in the Sudbury Neutrino Observatory
journal, June 2002

Properties of 83 m Kr conversion electrons and their use in the KATRIN experiment
journal, February 2018

Unified approach to the classical statistical analysis of small signals
journal, April 1998

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