Measurement of Γee ×Bμμ for ψ(2S) meson
Abstract
The product of the electronic width of the ψ(2S) meson and the branching fraction of its decay to the muon pair was measured in the e+e- → ψ(2S) →μ+μ- process using nine data sets corresponding to an integrated luminosity of about 6.5 pb-1 collected with the KEDR detector at the VEPP-4M electron-positron collider:
- Publication:
-
Physics Letters B
- Pub Date:
- June 2018
- DOI:
- 10.1016/j.physletb.2018.03.079
- arXiv:
- arXiv:1801.10362
- Bibcode:
- 2018PhLB..781..174A
- Keywords:
-
- ψ(2S) meson;
- Leptonic width;
- Branching fraction;
- High Energy Physics - Experiment
- E-Print:
- doi:10.1016/j.physletb.2018.03.079