Bibliographic Details
| Title: |
Improved Search for Heavy Neutrinos in the Decay $\pi\rightarrow e\nu$ |
| Authors: |
Aguilar-Arevalo, A., Aoki, M., Blecher, M., Britton, D. I., Bruch, D. vom, 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., Vavilov, D. |
| Source: |
Phys. Rev. D 97, 072012 (2018) |
| Publication Year: |
2017 |
| Collection: |
High Energy Physics - Experiment |
| Subject Terms: |
High Energy Physics - Experiment |
| More Details: |
A search for massive neutrinos has been made in the decay $\pi\rightarrow e^+ \nu$. No evidence was found for extra peaks in the positron energy spectrum indicative of pion decays involving massive neutrinos ($\pi\rightarrow e^+ \nu_h$). Upper limits (90 \% C.L.) on the neutrino mixing matrix element $|U_{ei}|^2$ in the neutrino mass region 60--135 MeV/$c^2$ were set, which are %representing an order of magnitude improvement over previous results. |
| Document Type: |
Working Paper |
| DOI: |
10.1103/PhysRevD.97.072012 |
| Access URL: |
http://arxiv.org/abs/1712.03275 |
| Accession Number: |
edsarx.1712.03275 |
| Database: |
arXiv |
