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تسجيل مستخدم جديدResults from a Prototype Chicane-Based Energy Spectrometer for a Linear Collider
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The International Linear Collider and other proposed high energy e+ e- machines aim to measure with unprecedented precision Standard Model quantities and new, not yet discovered phenomena. One of the main requirements for achieving this goal is a measurement of the incident beam energy with an uncertainty close to 1e-4. This article presents the analysis of data from a prototype energy spectrometer commissioned in 2006--2007 in SLACs End Station A beamline. The prototype was a 4-magnet chicane equipped with beam position monitors measuring small changes of the beam orbit through the chicane at different beam energies. A single bunch energy resolution close to 5e-4 was measured, which is satisfactory for most scenarios. We also report on the operational experience with the chicane-based spectrometer and suggest ways of improving its performance.
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The Compact Linear Collider (CLIC) is a multi-TeV high-luminosity linear e+e- collider under development. For an optimal exploitation of its physics potential, CLIC is foreseen to be built and operated in a staged approach with three centre-of-mass e
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V.I. Telnov (Budker Institute of Nuclear physics
, Novosibirsk Staten Univ.
, Novosibirsk
2021
Superconducting niobium cavity technology (used for ILC) makes it possible to build a linear collider with energy recovery (ERLC). To avoid parasitic collisions inside the linacs a twin LC is proposed. In this article, we consider the principle schem
e of the collider and its energy consumption, and also estimate the achievable luminosity, which is limited by collision effects. With a duty cycle of 1/3, a luminosity of about $5times 10^{35} ,rm cm^{-2}s^{-1}$ is possible, which is almost two orders of magnitude higher than at the ILC, where the beams are used only once.
The beam energy measurement system for the VEPP-2000 electron-positron collider is described. The method of Compton backscattering of $CO$ laser photons on the electron beam is used. The relative systematic uncertainty of the beam energy determinatio
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