@article{2a3c91a02d1a41cdbc0769cb4c905d2d,
title = "Evidence for anomalous lepton production in e+-e- annihilation",
abstract = "We have found events of the form e++e-→e±+μ+missing energy, in which no other charged particles or photons are detected. Most of these events are detected at or above a center-of-mass energy of 4 GeV. The missing-energy and missing-momentum spectra require that at least two additional particles be produced in each event. We have no conventional explanation for these events.",
author = "Perl, \{M. L.\} and Abrams, \{G. S.\} and Boyarski, \{A. M.\} and M. Breidenbach and Briggs, \{D. D.\} and F. Bulos and W. Chinowsky and Dakin, \{J. T.\} and Feldman, \{G. J.\} and Friedberg, \{C. E.\} and D. Fryberger and G. Goldhaber and G. Hanson and Heile, \{F. B.\} and B. Jean-Marie and Kadyk, \{J. A.\} and Larsen, \{R. R.\} and Litke, \{A. M.\} and D. L{\"u}ke and Lulu, \{B. A.\} and V. L{\"u}th and D. Lyon and Morehouse, \{C. C.\} and Paterson, \{J. M.\} and Pierre, \{F. M.\} and Pun, \{T. P.\} and Rapidis, \{P. A.\} and B. Richter and B. Sadoulet and Schwitters, \{R. F.\} and W. Tanenbaum and Trilling, \{G. H.\} and F. Vannucci and Whitaker, \{J. S.\} and Winkelmann, \{F. C.\} and Wiss, \{J. E.\}",
note = "This work is based on observations obtained at the Gemini Observatory, which is operated by the Association of Universities for Research in Astronomy, Inc., under a cooperative agreement with the NSF on behalf of the Gemini partnership: the National Science Foundation (United States), the Science and Technology Facilities Council (United Kingdom), the National Research Council (Canada), CONICYT (Chile), the Australian Research Council (Australia), Minist?rio da Ci?ncia, Tecnologia e Inova??o (Brazil) and Ministerio de Ciencia, Tecnolog?a e Innovaci?n Productiva (Argentina). WHW is partially supported by the Ministry of Science and Technology of Taiwan grant 102-2119-M-001-007-MY3. NK acknowledges support from the Department of Science and Technology through a Ramanujan Fellowship. JXP is partly supported by NSF grant AST-1109447. The authors would like to dedicate this paper to the memory of Arthur M. Wolfe, who pioneered studies of DLA systems for more than three decades.",
year = "1975",
doi = "10.1103/PhysRevLett.35.1489",
language = "English (US)",
volume = "35",
pages = "1489--1492",
journal = "Physical review letters",
issn = "0031-9007",
publisher = "American Physical Society",
number = "22",
}