In:
Journal of High Energy Physics, Springer Science and Business Media LLC, Vol. 2022, No. 12 ( 2022-12-05)
Abstract:
Using (448 . 1 ± 2 . 9) × 10 6 ψ (3686) events collected with the BESIII detector at the BEPCII collider, the decay ψ (3686) → $$ {\Sigma}^{-}{\overline{\Sigma}}^{+} $$ Σ − Σ ¯ + is observed for the first time with a branching fraction of (2 . 82 ± 0 . 04 stat . ± 0 . 08 syst . ) × 10 − 4 , and the angular parameter α Σ − is measured to be 0 . 96 ± 0 . 09 stat . ± 0 . 03 syst . .
Type of Medium:
Online Resource
ISSN:
1029-8479
DOI:
10.1007/JHEP12(2022)016
Language:
English
Publisher:
Springer Science and Business Media LLC
Publication Date:
2022
detail.hit.zdb_id:
2027350-2
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