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Lepton

About: Lepton is a research topic. Over the lifetime, 16990 publications have been published within this topic receiving 404759 citations.


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5,265 citations

Journal ArticleDOI
TL;DR: In this paper, the weak and electromagnetic interactions of leptons are examined under the hypothesis that the weak interactions are mediated by vector bosons, and it is shown that the simplest partially-symmetric model reproducing the observed electromagnetic and weak interactions requires the existence of at least four vector-boson fields (including the photon).

4,387 citations

Journal ArticleDOI
Nicola Cabibbo1
TL;DR: In this article, an analysis of leptonic decays based on unitary symmetry for strong interactions and the V-A theory for weak interactions is presented, and an explanation for the observed predominance of the LAMBDA yields + e/sup -/ + nu decay over the lamBDA /sup −/ yields n + e /sup + n decay.
Abstract: An analysis of leptonic decays based on unitary symmetry for strong interactions (eightfold way) and the V-A theory for weak interactions is presented. An explanation for the observed predominance of the LAMBDA yields + e/sup -/ + nu decay over the LAMBDA /sup -/ yields n + e/sup -/ + nu decay is obtained. Branching ratios predicted for electron modes with DELTA S, 1 are presented; the ratios for the above decays agree well with experimental results. (D.C.W.)

3,957 citations

Journal ArticleDOI
TL;DR: In this article, a particle mixture theory of neutrino is proposed assuming the existence of two kinds neutrinos, and a possible unified model of elementary particles is constructed by generalizing the Sakata-Nagoya model, which gives a natural explanation of smallness of leptonic decay rate of hyperons as well as subtle difference of G_ν's between µ-e and β-decay.
Abstract: A particle mixture theory of neutrino is proposed assuming the existence of two kinds of neutrinos. Based on the neutrino-mixture theory, a possible unified model of elementary particles is constructed by generalizing the Sakata-Nagoya model. Our scheme gives a natural explanation of smallness of leptonic decay rate of hyperons as well as the subtle difference of G_ν's between µ-e and β-decay.

2,968 citations

Journal ArticleDOI
K. Eguchi1, Sanshiro Enomoto1, K. Furuno1, J. Goldman1, H. Hanada1, H. Ikeda, Kiyohiro Ikeda1, Kunio Inoue, K. Ishihara1, W. Itoh1, T. Iwamoto1, Tomoya Kawaguchi1, T. Kawashima1, H. Kinoshita1, Yasuhiro Kishimoto, M. Koga, Y. Koseki1, T. Maeda1, T. Mitsui, M. Motoki, K. Nakajima1, M. Nakajima1, T. Nakajima1, Hiroshi Ogawa1, K. Owada1, T. Sakabe1, I. Shimizu, J. Shirai1, F. Suekane, A. Suzuki1, K. Tada1, Osamu Tajima1, T. Takayama1, K. Tamae1, Hideki Watanabe, J. Busenitz2, Z. Djurcic2, K. McKinny2, Dongming Mei2, A. Piepke2, E. Yakushev2, B. E. Berger3, Y. D. Chan3, M. P. Decowski3, D. A. Dwyer3, Stuart J. Freedman3, Y. Fu3, B. K. Fujikawa3, K. M. Heeger3, K. T. Lesko3, K. B. Luk3, Hitoshi Murayama3, D. R. Nygren3, C. E. Okada3, A. W. P. Poon3, H. M. Steiner3, Lindley Winslow3, G. A. Horton-Smith4, R. D. McKeown4, J. Ritter4, B. Tipton4, Petr Vogel4, C. E. Lane5, T. Miletic5, Peter Gorham, G. Guillian, John G. Learned, J. Maricic, S. Matsuno, Sandip Pakvasa, S. Dazeley6, S. Hatakeyama6, M. Murakami6, R. Svoboda6, B. D. Dieterle7, M. DiMauro7, J. A. Detwiler8, Giorgio Gratta8, K. Ishii8, N. Tolich8, Y. Uchida8, M. Batygov9, W. M. Bugg9, H. O. Cohn9, Yuri Efremenko9, Yuri Kamyshkov9, A. Kozlov9, Y. Nakamura9, L. De Braeckeleer10, L. De Braeckeleer11, C. R. Gould11, C. R. Gould10, Hugon J Karwowski11, Hugon J Karwowski10, D. M. Markoff11, D. M. Markoff10, J. A. Messimore11, J. A. Messimore10, Koji Nakamura11, Koji Nakamura10, Ryan Rohm11, Ryan Rohm10, Werner Tornow10, Werner Tornow11, Albert Young11, Albert Young10, Y. F. Wang 
TL;DR: In the context of two-flavor neutrino oscillations with CPT invariance, all solutions to the solar neutrinos problem except for the "large mixing angle" region are excluded.
Abstract: KamLAND has measured the flux of ν _e’s from distant nuclear reactors. We find fewer ν _e events than expected from standard assumptions about ν _e propagation at the 99.95% C.L. In a 162 ton·yr exposure the ratio of the observed inverse β-decay events to the expected number without ν _e disappearance is 0.611±0.085(stat)±0.041(syst) for ν _e energies >3.4 MeV. In the context of two-flavor neutrino oscillations with CPT invariance, all solutions to the solar neutrino problem except for the “large mixing angle” region are excluded.

2,108 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
2023592
20221,442
2021656
2020576
2019609
2018677