Do the elementary particles known as neutrinos have mass? Yes, according to recent experiments. But how much? A surprising — and controversial — result suggests that the answer is not what we thought.
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References
Klapdor-Kleingrothaus, H. V., Dietz, A., Harney, H. L. & Krivosheina, I. V. Mod. Phys. Lett. A 16, 2409–2420 (2001).
Pati, J. & Salam, A. Phys. Rev. D 10, 275–289 (1974).
Georgi, H. & Glashow, S. Phys. Rev. Lett. 32, 438–441 (1974).
Yanagida, T. in Proc. Workshop on Unified Theory and Baryon Number in the Universe (eds Sawada, O. & Sugamoto, A.) 95–98 (KEK, Tsukuba, 1979).
Gell-Mann, M. et al. in Supergravity (eds van Nieuwenhuysen, P. & Freedman, D. Z.) 315–321 (North-Holland, Amsterdam, 1979).
Weinberg, S. in First Workshop on Grand Unification (eds Frampton, P., Glashow, S. L. & Yildiz, A.) 347–362 (Math. Sci. Press, Brookline, MA, 1980).
Bonn, J. et al. (MAINZ collaboration) Nucl. Phys. Proc. Suppl. 91, 273–279 (2001).
Fukuda, S. et al. (SuperKamiokande collaboration) Phys. Rev. Lett. 85, 3999–4003 (2000).
Giacomelli, G. & Giorgini, M. (MACRO collaboration) Preprint hep-ex/0110021 (2001); http://xxx.lanl.gov
Bahcall, J. N. & Davis, R. Jr in Essays in Nuclear Astrophysics (eds Barnes, C. A., Clayton, D. D. & Schramm, D. N.) 243–285 (Cambridge Univ. Press, 1982).
Ferruglio, F., Strumia, A. & Vissani, F. Preprint hep-ph/0201291 (2002); http://xxx.lanl.gov
Aalseth, C. E. et al. Preprint hep-ex/0202018 (2002); http://xxx.lanl.gov
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Witten, E. The mass question. Nature 415, 969–971 (2002). https://doi.org/10.1038/415969a
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DOI: https://doi.org/10.1038/415969a