Search for the lepton-family-number nonconserving decayμ+→e+γ
| Autor: | P. M. Nord, E. V. Hungerford, B. Wright, M. A. Kroupa, D. D. Koetke, C. Wilkinson, D. Lee, T. D. S. Stanislaus, R. J. Fisk, L. Pinsky, M. A. Oothoudt, J. J. Szymanski, X. L. Tu, C. Pillai, B. M. K. Nefkens, L. A. Van Ausdeln, K. Lan, K. O. H. Ziock, R. Phelps, A. R. Kunselman, W. B. Tippens, R. E. Tribble, F. Liu, S. C. Wright, A. Chernyshev, M. D. Cooper, Staffan Carius, C. Jui, B. W. Mayes, M. Brooks, K. Black, D. Barlow, M. Dzemidzic, E. B. Hughes, L. Tang, C. M. Hoffman, A. Empl, G. E. Hogan, A. Hallin, John C. Crocker, J. F. Amann, R. Manweiler, C. A. Gagliardi, R. D. Bolton, W. Foreman, W. H. Von Witch, L. E. Piilonen, Y. Zhang, D. Haim, Y. Chen, J. N. Otis, C. Smith, P. S. Cooper, R. Marshall, M. Ahmed, L. M. Nickerson, H. M. Concannon, D. Whitehouse, J. R. Dittmann, R. E. Mischke, T. Kozlowski, G. J. Kim, E. Fleet, V. Laptev, K. M. Stantz, M. W. Ritter, J. E. Knott |
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| Rok vydání: | 2002 |
| Předmět: | |
| Zdroj: | Physical Review D. 65 |
| ISSN: | 1089-4918 0556-2821 |
| DOI: | 10.1103/physrevd.65.112002 |
| Popis: | The MEGA experiment, which searched for the muon- and electron-number violating decay ${\ensuremath{\mu}}^{+}\ensuremath{\rightarrow}{e}^{+}\ensuremath{\gamma},$ is described. The spectrometer system, the calibrations, the data taking procedures, the data analysis, and the sensitivity of the experiment are discussed. The most stringent upper limit on the branching ratio, $\mathcal{B}({\ensuremath{\mu}}^{+}\ensuremath{\rightarrow}{e}^{+}\ensuremath{\gamma})l1.2\ifmmode\times\else\texttimes\fi{}{10}^{\ensuremath{-}11}$ with $90%$ confidence, is derived from a likelihood analysis. |
| Databáze: | OpenAIRE |
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