| Article | |
| Report number | arXiv:2002.09170 |
| Title | Improved search for two body muon decay ${\mu}^+{\rightarrow}e^+X_H$ |
| Author(s) |
Aguilar-Arevalo, A. (Mexico U., ICN) ; Aoki, M. (Osaka U., Inst. Phys.) ; Blecher, M. (Virginia Tech.) ; Britton, D.I. (Glasgow U.) ; vom Bruch, D. (British Columbia U.) ; Bryman, D.A. (British Columbia U. ; TRIUMF) ; Chen, S. (Tsinghua U., Beijing, Dept. Eng. Phys.) ; Comfort, J. (Arizona State U.) ; Cuen-Rochin, S. (TRIUMF ; Sinaloa U.) ; Doria, L. (TRIUMF ; Mainz U., Inst. Kernphys.) ; Gumplinger, P. (TRIUMF) ; Hussein, A. (TRIUMF ; Northern British Columbia U.) ; Igarashi, Y. (KEK, Tsukuba) ; Ito, S. (Osaka U., Inst. Phys.) ; Kettell, S. (Brookhaven) ; Kurchaninov, L. (TRIUMF) ; Littenberg, L.S. (Brookhaven) ; Malbrunot, C. (British Columbia U. ; CERN) ; Mischke, R.E. (TRIUMF) ; Numao, T. (TRIUMF) ; Protopopescu, D. (Glasgow U.) ; Sher, A. (TRIUMF) ; Sullivan, T. (British Columbia U.) ; Vavilov, D. (British Columbia U. ; TRIUMF) |
| Publication | 2020-03-31 |
| Imprint | 2020-02-21 |
| Number of pages | 4 |
| Note | 3 pages, 2 figures |
| In: | Phys. Rev. D 101 (2020) 052014 |
| DOI | 10.1103/PhysRevD.101.052014 (publication) |
| Subject category | nucl-ex ; Nuclear Physics - Experiment ; hep-ex ; Particle Physics - Experiment |
| Accelerator/Facility, Experiment | TRIUMF 1072 |
| Abstract | Charged lepton flavor violating muon decay ${\mu}^+{\rightarrow}e^+X_H$, where $X_H$ is a massive neutral boson, was sought by searching for extra peaks in the muon decay ${\mu}^+{\rightarrow}e^+{\nu}\bar{\nu}$ energy spectrum in the $m_{X_H}$ mass region $47.8-95.1$ MeV/$c^2$. No signal was found and 90% confidence level upper limits were set on the branching ratio ${\Gamma}({\mu}^+{\rightarrow}e^+X_H)/{\Gamma}({\mu}^+{\rightarrow}e^+{\nu}\bar{\nu})$ at the level of $10^{-5}$ for this region. |
| Copyright/License | preprint: (License: arXiv nonexclusive-distrib 1.0) publication: © 2020-2024 authors (License: CC-BY-4.0) |
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Registre creat el 2022-01-25, darrera modificació el 2024-06-13
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