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1.
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Benchmarking the FCC-ee positron source simulation tools using the SuperKEKB results
/ Alharthi, F (IJCLab, Orsay ; KACST, Riyadh) ; Chaikovska, I (IJCLab, Orsay) ; Chehab, R (IJCLab, Orsay) ; Zhao, Y (CERN) ; Latina, A (CERN) ; Enomoto, Y (KEK, Tsukuba) ; Miyahara, F (KEK, Tsukuba) ; Mytrochenko, V (Kharkov, KIPT)
For the Future Circular Collider (FCC-ee), particular attention is drowned to the crucial role of the positron source. Two positron production schemes are considered for the FCC-ee: conventional and crystal-based (hybrid), implying the use of channeling radiation in the oriented crystals. [...]
2024 - 7 p.
- Published in : J. Phys. : Conf. Ser.: 2687 (2024) , no. 2, pp. 022010
- Published in : JACoW IPAC: 2023 (2023) , pp. MOPL094
Fulltext: PublicationJACoW - PDF; PublicationIOP - PDF;
In : 14th International Particle Accelerator Conference (IPAC 2023), Venice, Italy, 7 - 12 May 2023, pp.022010
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2.
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Update on the FCC-ee positron source design studies
/ Chaikovska, Iryna (IJCLab, Orsay) ; Bacci, Alberto (INFN, Milan) ; Latina, Andrea (CERN) ; Lechner, Anton (CERN) ; Perillo Marcone, Antonio (CERN) ; Humann, Barbara (CERN) ; Auchmann, Bernhard (PSI, Villigen) ; Alharthi, Fahad (IJCLab, Orsay ; KACST, Riyadh) ; Kosse, Jaap (PSI, Villigen) ; Grenard, Jean-Louis (CERN) et al.
The studies and R&D; on the high-intensity positron source for the FCC-ee have been initiated for a while. The positrons are produced by a 6 GeV electron drive-beam incident on a target-converter at 200 Hz. [...]
2023 - 4 p.
- Published in : JACoW IPAC 2023 (2023) MOPL095
Fulltext: PDF;
In : 14th International Particle Accelerator Conference (IPAC 2023), Venice, Italy, 7 - 12 May 2023, pp.MOPL095
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3.
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The FCCee Pre-Injector Complex
/ Craievich, Paolo (PSI, Villigen) ; Alharthi, Fahad (IJCLab, Orsay) ; Auchmann, Bernhard (PSI, Villigen) ; Bartmann, Wolfgang (CERN) ; Benedikt, Michael (CERN) ; Besana, Maria Ilaria (CERN) ; Bettoni, Simona (PSI, Villigen) ; Braun, Hans-Heinrich (PSI, Villigen) ; Calviani, Marco (CERN) ; Chaikovska, Iryna (IJCLab, Orsay) et al.
The international FCC study group published in 2019 a Conceptual Design Report for an electron-positron collider with a centre-of-mass energy from 90 to 365 GeV with a beam currents of up to 1.4 A per beam. The high beam current of this collider create challenging requirements on the injection chain and all aspects of the linac need to be carefully reconsidered and revisited, including the injection time structure. [...]
2022 - 4 p.
- Published in : JACoW IPAC 2022 (2022) 2007-2010
Fulltext: PDF;
In : 13th International Particle Accelerator Conference (IPAC 2022), Bangkok, Thailand, 12 - 17 Jun 2022, pp.2007-2010
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4.
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Tests of General Relativity with GWTC-3
/ LIGO Scientific Collaboration
The ever-increasing number of detections of gravitational waves (GWs) from compact binaries by the Advanced LIGO and Advanced Virgo detectors allows us to perform ever-more sensitive tests of general relativity (GR) in the dynamical and strong-field regime of gravity. [...]
arXiv:2112.06861 ; LIGO-P2100275.
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41 p.
Fulltext
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5.
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Positron sources: from conventional to advanced accelerator concepts-based colliders
/ Chaikovska, I. (IJCLab, Orsay) ; Chehab, R. (IJCLab, Orsay) ; Kubytskyi, V. (IJCLab, Orsay) ; Ogur, S. (IJCLab, Orsay) ; Ushakov, A. (IJCLab, Orsay) ; Variola, A. (INFN, Rome) ; Sievers, P. (CERN) ; Musumeci, P. (UCLA) ; Bandiera, L. (INFN, Ferrara) ; Enomoto, Y. (KEK, Tsukuba) et al.
Positron sources are the key elements for the future and current lepton collider projects such as ILC, CLIC, SuperKEKB, FCC-ee, Muon Collider/LEMMA, etc., introducing challenging critical requirements for high intensity and low emittance beams in order to achieve high luminosity. In fact, due to their large production emittance and constraints given by the target thermal load, the main collider parameters such as the peak and average current, the emittances, the damping time, the repetition frequency and consequently the luminosity are determined by the positron beam characteristics. [...]
arXiv:2202.04939.-
2022-05-06 - 33 p.
- Published in : JINST 17 (2022) P05015
Fulltext: PDF;
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8.
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Positron source for FCC-ee
/ Chaikovska, Iryna (Orsay, LAL) ; Apyan, Armen (Yerevan Phys. Inst.) ; Chehab, Robert (Orsay, LAL) ; Enomoto, Yoshinori (KEK, Tsukuba) ; Faus-Golfe, Angeles (Orsay, LAL) ; Furukawa, Kazuro (KEK, Tsukuba) ; Han, Yanliang (Orsay, LAL) ; Kamitani, Takuya (KEK, Tsukuba) ; Martyshkin, Pavel (Novosibirsk, IYF) ; Miyahara, Fusashi (KEK, Tsukuba) et al.
The FCC-ee is a high-luminosity, high-precision circular collider to be constructed in a new 100 km tunnel in the Geneva area. The physics case is well established and the FCC-ee operation is foreseen at 91 GeV (Z-pole), 160 GeV (W pair production threshold), 240 GeV (Higgs resonance) and 365 GeV ($t \bar{t}$ threshold). [...]
CERN-ACC-2019-145.-
2019 - 4 p.
- Published in : 10.18429/JACoW-IPAC2019-MOPMP003
Fulltext from publisher: PDF;
In : 10th International Particle Accelerator Conference, Melbourne, Australia, 19 - 24 May 2019, pp.MOPMP003
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9.
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10.
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Synthesis of Cold Antihydrogen in a Cusp Trap
/ Enomoto, Y (Wako, RIKEN) ; Kuroda, N (Tokyo, U.) ; Michishio, K (Tokyo U. of Sci.) ; Kim, C H (Tokyo, U.) ; Higaki,H (ADSM, Hiroshima) ; Nagata, Y (Wako, RIKEN) ; Kanai, Y (Wako, RIKEN) ; Torii, H A (Tokyo, U.) ; Corradini, M (Brescia U. ; INFN, Brescia) ; Leali, M (Brescia U. ; INFN, Brescia) et al.
We report here the first successful synthesis of cold antihydrogen atoms employing a cusp trap, which consists of a superconducting anti-Helmholtz coil and a stack of multiple ring electrodes. This success opens a new path to make a stringent test of the CPT symmetry via high precision microwave spectroscopy of ground-state hyperfine transitions of antihydrogen atoms..
2010
- Published in : Phys. Rev. Lett. 105 (2010) 243401
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