Title :
HERA status and plans
Author_Institution :
DESY, Hamburg, Germany
Abstract :
In 1994, the HERA electron-proton collider delivered an integrated luminosity of 6.1 pb-1 to the ZEUS and H1 experiments each, about a factor of six more than in the previous year. The peak luminosity reached 4.7×1030 cm-2 s-1 corresponding to 31% of the design value. This paper reviews the present performance limitations of HERA concerning luminosity operation and the plans for future improvements. After successful commissioning of the spin rotator in 1994 (65% longitudinal polarisation was achieved) the HERMES experiment has been installed during the winter shutdown and will start taking data this year. Further plans concern machine modifications for the installation of the HERA-B internal target experiment in the proton ring (study of CP violation)
Keywords :
beam handling equipment; colliding beam accelerators; electron accelerators; nuclear bombardment targets; proton accelerators; storage rings; CP violation; HERA electron+proton collider; HERA-B internal target experiment; HERMES experiment; integrated luminosity; machine modifications; peak luminosity; performance limitations; proton ring; spin rotator; winter shutdown; Electron accelerators; Electron beams; Geometry; Magnetic separation; Particle beams; Polarization; Proton accelerators; Structural beams; Superconducting magnets; Synchrotrons;
Conference_Titel :
Particle Accelerator Conference, 1995., Proceedings of the 1995
Conference_Location :
Dallas, TX
Print_ISBN :
0-7803-2934-1
DOI :
10.1109/PAC.1995.504674