Low Energy Antiproton Ring

[1] The ring was designed to decelerate and store antiprotons, to study the properties of antimatter and to create atoms of antihydrogen.

LEAR is a multipurpose storage ring located in the South Hall of the Proton Synchrotron (PS), with a circumference of 78.5 m.[3][4] Four straight sections are alternated with compact 90° bending magnets, along with eight quadrupole doublets.

[5] For most experiments, a "beam stretcher mode" was used, where an ultra-slow extraction provided a high-duty (continuous) amount of antiprotons.

[5] The focus of stochastic cooling is to restrict the motion of particles in the beam and control their energies close to a certain value.

[10] Furthermore, matter-antimatter symmetry was investigated by studying specific proton-antiproton interactions, resulting in detailed measurements of CP violation.