2005/05/02 by Gideon Alexander, Alexander, Gideon, Erez Reinherz-Aronis +1
Engineering · Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #Muon and positron interactions and applications #Particle Accelerators and Free-Electron Lasers #Particle accelerators and beam dynamics #hep-ex
paper · pdf · doi:10.48550/arxiv.hep-ex/0505001
13 pages, 6 figures
arxiv created 2005/05/02 · openalex publication_date 2005/05/02 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
The introduction of a longitudinal polarised positron beam in an e+e- linear collider calls for its polarisation monitoring and measurement at low energies near its production location. Here it is shown that a relatively simple Bhabha scattering polarimeter allows, at energies below 5000 MeV, a more than adequate positron beam longitudinal polarisation measurement by using only the final state electrons. It is further shown that out of the three, 10, 250 or 5000 MeV positron beam energy locations, where the polarisationmeasurement in the TESLA linear collider can be performed, the 250 MeV site is best suited for this task.