Batozskaya, V. (2024) Hyperon physics at BESIII. Il nuovo cimento C, 47 (4). pp. 1-5. ISSN 1826-9885
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Abstract
With the large datasets on e+e− annihilation at the J/ψ and ψ(3686) resonances collected at the BESIII experiment, multi-dimensional analyses making use of polarization and entanglement can shed new light on the production and decay properties of hyperon–anti-hyperon pairs. In a series of recent studies performed at BESIII, significant transverse polarization of the (anti-)hyperons has been observed in J/ψ or ψ(3686) to ΛΛ, Σ ¯ Σ and Ξ ¯ Ξ. The decay parameters for the most common ¯ hadronic weak decay modes were measured, and due to the non-zero polarization, the parameters of hyperon and anti-hyperon decays could be determined independently of each other for the first time. Comparing the hyperon and anti-hyperon decay parameters yields precise tests of direct, ΔS = 1 CP violation that complement studies performed in the kaon sector.
| Item Type: | Article |
|---|---|
| Subjects: | 500 Scienze naturali e Matematica > 530 Fisica |
| Depositing User: | Marina Spanti |
| Date Deposited: | 22 Oct 2024 10:01 |
| Last Modified: | 22 Oct 2024 10:01 |
| URI: | http://eprints.bice.rm.cnr.it/id/eprint/23227 |
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