Electromagnetic Dalitz decays of decuplet to octet with the SU(3) flavor symmetry/breaking
Abstrak
Motivated by the first measured Δ+→pe+e− decay by the HADES Collaboration, electromagnetic Dalitz baryon decays from the spin 32 decuplet (T10) to the spin 12 octet (T8) baryons are investigated by using the SU(3) flavor symmetry/breaking in this paper. All decay amplitudes of T10→T8ℓ+ℓ−(ℓ=e,μ) electromagnetic Dalitz decays could be related by the SU(3) flavor symmetry/breaking, so the amplitudes can be obtained by the measured branching ratio of Δ+→pe+e− decay from the HADES Collaboration. The branching ratios, the lepton flavor universality, and the ratios B(T10→T8ℓ+ℓ−)B(T10→T8γ) are predicted by the relevant experimental data. T10→T8μ+μ− electromagnetic Dalitz decays are studied for the first time. All predicted B(T10→T8ℓ+ℓ−) except B(Ξ⁎0→Ξ0μ+μ−) and B(Ξ⁎−→Ξ−μ+μ−) are on the order of O(10−5−10−7), and these decays could be observed and could be used to test the SU(3) flavor symmetry/breaking approach in the electromagnetic Dalitz decays by HADES, PANDA, BESIII, and other experiments in the near future.
Topik & Kata Kunci
Penulis (4)
Yuan-Guo Xu
Ru-Min Wang
Xiao-Dong Cheng
Qin Chang
Akses Cepat
PDF tidak tersedia langsung
Cek di sumber asli →- Tahun Terbit
- 2022
- Sumber Database
- DOAJ
- DOI
- 10.1016/j.nuclphysb.2022.115725
- Akses
- Open Access ✓