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Volume 295 - The 19th International Workshop on Neutrinos from Accelerators NUFACT2017 (NuFact2017) - Working group 3 and 4: muon beam facilities
Low Emittance Muon Beams from Positrons
F. Collamati,* M. Antonelli, M. Boscolo, M. Biagini, O. Blanco-Garcia, A. Variola, A. Bacci, S. Liuzzo, P. Raimondi, I. Chaikovska, R. Cheab, L. Keller
*corresponding author
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Pre-published on: 2018 March 30
Published on: 2018 June 18
We are studying a novel scheme to produce muon beams characterised by very low emittance, thus allowing to avoid the need for cooling, using a positron beam of about 45 GeV interacting on electrons on a fixed target. This is a challenging scheme, and a full design study has to be developed. One of the key innovative topics to be investigated regards the interaction between the positron beam stored in a low emittance ring with a thin target inserted directly in the ring cham- ber. Produced muons will then be immediately collected at the exit of the target and transported to two μ+ and μ− accumulator rings. In this paper, after an introduction highlighting the rational in designing a muon collider, we discuss in detail this new muon production scheme, covering the simulation of the e+ beam interacting with the target, its degradation in the 6-D phase space and the optimisation of the e+ ring design mainly to maximise the energy acceptance.
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