Title :
Energy loss measurements at LEP2
Author :
Burkhardt, H. ; Muller, A.-S. ; Wenninger, J.
Author_Institution :
CERN, Geneva, Switzerland
Abstract :
The accurate measurement of the W boson mass at LEP requires to determine the beam energy to the highest possible precision. Present schemes rely on accurate energy determinations in the range from 40 to 60 GeV using resonant depolarization and on precise extrapolations to high energy. Several methods based on measurements of the energy loss due to synchrotron radiation have been studied. Different approaches such as the study of the damping time of transverse oscillations, the radiofrequency sawtooth and the dependence of the synchrotron tune on the total accelerating voltage are described and results are discussed
Keywords :
colliding beam accelerators; electron accelerators; particle beam diagnostics; storage rings; synchrotron radiation; 40 to 60 GeV; LEP2; W boson mass; damping time; energy determinations; energy loss measurements; radiofrequency sawtooth; resonant depolarization; synchrotron radiation; synchrotron tune; total accelerating voltage; transverse oscillations; Acceleration; Damping; Energy loss; Energy measurement; Extrapolation; Loss measurement; Radio frequency; Resonance; Synchrotron radiation; Voltage;
Conference_Titel :
Particle Accelerator Conference, 1999. Proceedings of the 1999
Conference_Location :
New York, NY
Print_ISBN :
0-7803-5573-3
DOI :
10.1109/PAC.1999.792129
