Paper | Title | Page |
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MOYAA02 | Status of DAΦNE: from KLOE-2 to SIDDHARTA-2 Experiment with Crab-Waist | 23 |
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Dafne, the Italian lepton collider, is running since more than a decade thanks to a radical revision of the approach used to deal with the beam-beam interaction: the Crab-Waist collision scheme. In this context, the collider has recently completed a long term activity program aimed at providing an unprecedented sample of data to the KLOE-2 detector, a large experimental apparatus including a high intensity solenoidal field strongly perturbing ring optics and beam dynamics. The KLOE-2 run has been undertaken with the twofold intend of collecting data for rare decay flavor physics studies, and testing the effectiveness of the new collision scheme in the presence of a strongly perturbing experimental apparatus. The performances of the collider are reviewed and the limiting factors discussed along with the preparatory phase activities planned to secure a new collider run to the SIDDHARTA-2 experiment. | ||
DOI • | reference for this paper ※ https://doi.org/10.18429/JACoW-eeFACT2018-MOYAA02 | |
About • | paper received ※ 20 October 2018 paper accepted ※ 19 February 2019 issue date ※ 21 April 2019 | |
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TUYAA01 | High Currents Effects in DAΦNE | 82 |
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DAΦNE, the Italian lepton collider, operates routinely with high intensity electron and positron colliding beams. The high current multi-bunch beams are stored in two independent rings, each of them 97 m long, and are distributed in 100 ’ 110 contiguous buckets out of the 120 available, spaced by only 2.7 ns. Since its construction, DAΦNE has been operated in different configurations which, overall, allowed to store current up to 1.4 A and 2.45 A in the positron and in the electron beam respectively. Still today DAΦNE holds the record for the highest electron beam current ever stored in particle factories and modern synchrotron radiation sources. The DAΦNE experience in terms of beam dynamics optimization aimed at achieving the high intensity beams is presented, with special emphasis on the e-cloud related issues, which represent the dominant effect limiting the positron beam current. | ||
DOI • | reference for this paper ※ https://doi.org/10.18429/JACoW-eeFACT2018-TUYAA01 | |
About • | paper received ※ 24 October 2018 paper accepted ※ 19 February 2019 issue date ※ 21 April 2019 | |
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WEPAB03 | FCC-ee Operation Model, Availability & Performance | 269 |
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Funding: This work was supported by the European Commission under the HORIZON 2020 project ARIES no.~730871. This document discusses the machine parameters and expected luminosity performance for the proposed future circular lepton collider FCC-ee. Particular emphasis is put on availability, physics run time, and efficiency. Key performance assumptions are compared with the operational experience of several past and present colliders including their injectors - LHC, LEP/LEP-2, PEP-II, KEKB, BEPCII, DAΦNE, SLC and the SPS complex. |
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DOI • | reference for this paper ※ https://doi.org/10.18429/JACoW-eeFACT2018-WEPAB03 | |
About • | paper received ※ 13 October 2018 paper accepted ※ 19 February 2019 issue date ※ 21 April 2019 | |
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