Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10725222 | Physics Letters B | 2007 | 7 Pages |
Abstract
The high-luminosity e+eâ linear collider has been studied as an energy frontier future project in high energy physics, and is expected to be a good place for the precision experiments. The high-luminosity e+eâ linear collider no longer produces a monochromatic energy spectrum in the center of mass system, but a continuous and rather broad energy spectrum due to beamstrahlung of colliding e+ and eâ beams. Without precise knowledge of this energy spectrum alias the luminosity spectrum, the precision experiment in the linear collider should be confronted with a crucial problem. A statistical method based on new developments in information technology is examined with a view of determining the luminosity spectrum. A statistical model is formulated and a likelihood fitting is carried out to determine the luminosity spectrum by using Bhabha events. The e+ and eâ beam parameters, describing the luminosity spectrum, can be determined with an uncertainty of several percent by using 10 k Bhabha events under an ideal detector condition.
Keywords
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Nuclear and High Energy Physics
Authors
Akihiro Shibata, Setsuya Kawabata, Junpei Fujimoto, Yoshimasa Kurihara, Takashi Watanabe,