Speaker
Description
The dominance of matter over antimatter in the universe has consistently driven the pursuit of new physics beyond the Standard Model that violates charge-parity (CP) symmetry. The BESIII experiment has collected 10 billion J/ψ events and 2.7 billion ψ(3686) events. With the quantum entangled decays of J/ψ, we can search for the new source of CP violation and precisely measure the electric dipole moment (EDM) of hyperons like Lambda from J/ψ→ΛΛbar, achieving a three-order-of-magnitude improvement over the previous upper limit. The results of search for CP violation in ψ(3686)->π+π-J/ψ and precise measurement of chromo-EDM of the charm quark, as well as the search for CP violation processes J/ψ→Ks0Ks0 and ψ(3686)→Ks0Ks0, will also be presented.
| 请选择分会 | 强子物理与味物理 |
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