Updated status of the undulator-based ILC positron source
| Autor: | Riemann, Sabine, Sievers, Moortgat-Pick, Gudrid, Ushakov, Andriy |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
positron: polarized beam
Accelerator Physics (physics.acc-ph) yield [positron] Astrophysics::High Energy Astrophysical Phenomena polarized beam [photon] FOS: Physical sciences photon: polarized beam Accelerators and Storage Rings ILC Coll positron: particle source design [target] Physics::Accelerator Physics particle source [positron] target: design Physics - Accelerator Physics High Energy Physics::Experiment polarized beam [positron] undulator positron: yield physics.acc-ph |
| DOI: | 10.3204/PUBDB-2021-02420 |
| Popis: | The design of the positron source for the International Linear Collider (ILC) is still under discussion. The baseline design plans to use the high-energy electron beam for the positron production before it goes to the IP. The electrons pass a long helical undulator and generate an intense circularly polarized photon beam which hits a thin conversion target to produce $e^+e^-$ pairs. The resulting positron beam is longitudinally polarized which provides an important benefit for precision physics analyses at the ILC. In this paper the status of the positron target design studies is presented. Focus is the positron yield for center-of-mass energies of 250 GeV and also the Z peak. Possibilities to improve the positron collection system and thus to increase the positron yield are discussed. Comment: Talks presented at the International Workshop on Future Linear Colliders (LCWS2019), Sendai, Japan, 28 October-1 November, 2019. C19-10-28. arXiv admin note: text overlap with arXiv:1902.07744 |
| Databáze: | OpenAIRE |
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