New Window on Matter-Antimatter Differences

Abstract

Recent measurements of $CP$-related comparisons of the weak-interaction parameters that describe the decays of the ${\Xi }^{-}$ and the ${\bar{\Xi }}^{+}$ doubly strange hyperon and antihyperon are reviewed and their significance is discussed.

References in corpus (15)

• Measurement of the permanent electric dipole moment of the neutron
• Observation of Direct CP Violation in K_{S,L} to ππDecays
• Polarization and Entanglement in Baryon-Antibaryon Pair Production in Electron-Positron Annihilation
• A precise measurement of the direct CP violation parameter Re(epsilon'/epsilon)
• Weak phases and CP-symmetry tests in sequential decays of entangled double-strange baryons
• Precise Measurements of Decay Parameters and $CP$ Asymmetry with Entangled $\Lambda -\bar{\Lambda }$ Pairs
• Polarization observables in $e^{+}{e}^{-}$ annihilation to a baryon-antibaryon pair
• CP Violation in Hyperon Nonleptonic Decays within the Standard Model
• CP Violation in Hyperon Decays from Supersymmetry
• Study of CP violation in hyperon decays at Super Charm-Tau Factories with a polarized electron beam
• Search for CP Violation in Charged-Xi and Lambda Hyperon Decays
• Search for Direct CP Violation in Non-Leptonic Decays of Charged $\Xi$ and $\Lambda$ Hyperons
• Meson-baryon scattering to one-loop order in heavy baryon chiral perturbation theory
• The ${\epsilon }^{\prime }/\epsilon$-Story: 1976-2021
• Crab Waist collision scheme: a novel approach for particle colliders