Improved search for two body muon decay μ+→e+XH

Aguilar-Arevalo, A. et al. (2020) Improved search for two body muon decay μ+→e+XH. Physical Review D, 101(5), (doi: 10.1103/PhysRevD.101.052014)

Abstract

Charged lepton flavor violating muon decay μ + → e + X H , where X H is a massive neutral boson, was sought by searching for extra peaks in the muon decay μ + → e + ν ¯ ν 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 Γ ( μ + → e + X H ) / Γ ( μ + → e + ν ¯ ν ) at the level of 10 − 5 for this region.

• Item Type: Articles
• Additional Information: (PIENU Collaboration).
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Britton, Professor David and Protopopescu, Dr Dan
• Authors: Aguilar-Arevalo, A., Aoki, M., Blecher, M., Britton, D.I., vom Bruch, D., Bryman, D. A., Chen, S., Comfort, J., Cuen-Rochin, S., Doria, L., Gumplinger, P., Hussein, A., Igarashi, Y., Ito, S., Kettell, S., Kurchaninov, L., Littenberg, L. S., Malbrunot, C., Mischke, R. E., Numao, T., Protopopescu, D., Sher, A., Sullivan, T., and Vavilov, D.
• College/School: College of Science and Engineering > School of Physics and Astronomy
• Journal Name: Physical Review D
• Publisher: American Physical Society
• ISSN: 2470-0010
• ISSN (Online): 1550-2368
• First Published: First published in Physical Review D 101:052014
• Publisher Policy: Reproduced under a Creative Commons licence