Mangoni, Alessio (2020) J/ψ decays into baryon-antibaryon pairs. Il nuovo cimento C, 43 (4-5). pp. 1-8. ISSN 1826-9885
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Abstract
In 2019 the BESIII Collaboration collected a sample of 10 billions of J/ψ events and, using about 1.3 × 109 of them, observed baryon polarization in baryon-antibaryon decays, publishing a paper in Nature Physics. Using new data from both PDG and BESIII experiment and a model based on an effective strong Lagrangian, we separate, for the first time, the strong and electromagnetic contributions to the total branching ratio of the J/ψ decays into a pair of spin-1/2 baryon-antibaryon, finding a relative phase of ϕ = (73 ± 8)◦.
| Item Type: | Article |
|---|---|
| Subjects: | 500 Scienze naturali e Matematica > 530 Fisica |
| Depositing User: | Marina Spanti |
| Date Deposited: | 18 Mar 2021 09:00 |
| Last Modified: | 18 Mar 2021 09:00 |
| URI: | http://eprints.bice.rm.cnr.it/id/eprint/20842 |
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