Ultimate luminosities and energies of photon colliders
- Institute of Nuclear Physics, 630090, Novosibirsk (Russia)
A photon collider lumonosity and its energy are determined by the parameters of an electron-electron linear collider (energy, power, beam emittances) and collision effects. The main collision effect is the coherent e{sup +}e{sup {minus}} pair creation. At low energies (2E{lt}0.5{endash}1TeV) this process is suppressed due to repulsion of electron beams. In this region L{sub {gamma}{gamma}}(z{gt}0.65){ge}10{sup 35}cm{sup {minus}2}s{sup {minus}1} is possible (10{sup 33}{minus}10{sup 34} is sufficient). At higher energies the limited average beam power and coherent pair creation restrict the maximum energy of photon colliders (with sufficient luminosity) at E{sub cm}{approximately}5TeV. Obtaining high luminosities requires the development of new methods of production beams with low emittances such as a laser cooling. {copyright} {ital 1997 American Institute of Physics.}
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 552917
- Report Number(s):
- CONF-961038--
- Journal Information:
- AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 397; ISSN APCPCS; ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
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