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Design and early operation of a new-generation internal beam dump for CERN’s Super Proton Synchrotron
/ Francia, A. Romero (CERN) ; Perillo Marcone, A. (CERN) ; Pianese, S. (CERN) ; Andersen, K. (CERN) ; Izquierdo, G. Arnau (CERN) ; Briz, J.A. (CERN) ; Perez, D. Carbajo (CERN) ; Carlier, E. (CERN) ; Coiffet, T. (CERN) ; Esposito, L.S. (CERN) et al.
The Super Proton Synchrotron (SPS) is the last stage in the injector chain for CERN's Large Hadron Collider, and it also provides proton and ion beams for several fixed-target experiments. The SPS has been in operation since 1976, and it has been upgraded over the years. [...]
arXiv:2312.15485.-
2024-04-01 - 19 p.
- Published in : Phys. Rev. Accel. Beams 27 (2024) 043001
Fulltext: Publication - PDF; 2312.15485 - PDF;
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Particle Physics at the European Spallation Source
/ Abele, H. (Vienna, Tech. U., Atominst.) ; Alekou, A. (CERN) ; Algora, A. (Valencia U.) ; Andersen, K. (Oak Ridge) ; Baeßler, S. (Virginia U. (main) ; Oak Ridge) ; Barron-Pálos, L. (Mexico U.) ; Barrow, J. (MIT, Cambridge, Dept. Phys. ; Tel Aviv U.) ; Baussan, E. (Strasbourg, IPHC) ; Bentley, P. (ESS, Lund) ; Berezhiani, Z. (L'Aquila U. ; INFN, Aquila) et al.
Presently under construction in Lund, Sweden, the European Spallation Source (ESS) will be the world's brightest neutron source. As such, it has the potential for a particle physics program with a unique reach and which is complementary to that available at other facilities. [...]
arXiv:2211.10396.-
2023-07 - 84 p.
- Published in : Phys. Rep. 1023 (2023) 1-84
Fulltext: PDF;
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Construction and Installation of the New CERN Proton Synchrotron Internal Beam Dumps
/ Andersen, Kristian G (CERN) ; Calviani, Marco (CERN) ; Cherif, Ahmed (CERN) ; Coiffet, Thibaut (CERN) ; De Macedo, Aurelio (CERN) ; Devidal, Sylvain (CERN) ; Geisser, Jean-Marie (CERN) ; Gilardoni, Simone S (CERN) ; Gillet, Martin (CERN) ; Grenier-Boley, Edouard (CERN) et al.
In the framework of the CERN Large Hadron Collider Injectors Upgrade (LIU) Project, the Proton Synchrotron (PS) has been equipped with two new movable Internal Dumps (PSID), each of them capable of absorbing particle beams of an energy of up to 100 kJ. These dumps replace the old Internal Dumps, which have been operated in the accelerator complex since their installation in 1975 until their decommissioning and removal from the machine during the second LHC Long Shut down (LS2). [...]
Geneva : JACoW, 2021 - 4 p.
- Published in : JACoW IPAC 2021 (2021) 1409-1412
Fulltext: PDF;
In : 12th International Particle Accelerator Conference (IPAC 2021), Online, 24 - 28 May 2021, pp.1409-1412
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5.
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Experimental investigation of the Landau-Pomeranchuk-Migdal effect in low-Z targets
/ Andersen, K.K. (Aarhus U.) ; Andersen, S.L. (Aarhus U.) ; Esberg, J. (CERN) ; Knudsen, H. (Aarhus U.) ; Mikkelsen, R.E. (Aarhus U.) ; Uggerhøj, U.I. (Aarhus U.) ; Wistisen, T.N. (Aarhus U.) ; Sona, P. (Florence U.) ; Mangiarotti, A. (Sao Paulo U.) ; Ketel, T.J. (Vrije U., Amsterdam)
/CERN NA63 Collaboration
In the CERN NA63 collaboration we have addressed the question of the potential inadequacy of the commonly used Migdal formulation of the Landau-Pomeranchuk-Migdal (LPM) effect by measuring the photon emission by 20 and 178 GeV electrons in the range 100 MeV - 4 GeV, in targets of LowDensityPolyEthylene (LDPE), C, Al, Ti, Fe, Cu, Mo and, as a reference target, Ta. For each target and energy, a comparison between simulated values based on the LPM suppression of incoherent bremsstrahlung is shown, taking multi-photon effects into account. [...]
arXiv:1309.5765.-
2013-10-15 - 8 p.
- Published in : Phys. Rev. D 88 (2013) 072007
APS published version, local copy: PDF; Fulltext: PDF; External link: Preprint
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8.
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Physics at the CLIC $e^{+}e^{-}$ Linear Collider - Input to the Snowmass process 2013
/ Abramowicz, H. (Tel Aviv U.) ; Abusleme, A. (Chile U., Catolica) ; Afanaciev, K. (Minsk, High Energy Phys. Ctr.) ; Alexander, G. (Tel Aviv U.) ; Alipour Tehrani, N. (CERN) ; Alonso, O. (Barcelona U.) ; Andersen, K.K. (Aarhus U.) ; Arfaoui, S. (CERN) ; Balazs, C. (Monash U.) ; Barklow, T. (SLAC) et al.
/CLIC Detector and Physics Study
This paper summarizes the physics potential of the CLIC high-energy e+e- linear collider. It provides input to the Snowmass 2013 process for the energy-frontier working groups on The Higgs Boson (HE1), Precision Study of Electroweak Interactions (HE2), Fully Understanding the Top Quark (HE3), as well as The Path Beyond the Standard Model -- New Particles, Forces, and Dimensions (HE4). [...]
arXiv:1307.5288.-
2013 - 31 p.
Fulltext: PDF; External links: PDF on ECONF; Proceedings write-up on ECONF
In : Community Summer Study 2013 : Snowmass on the Mississippi, Minneapolis, MN, USA, 29 Jul - 6 Aug 2013
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Direct measurement of the formation length of photons
/ Andersen, Kristoffer K (Aarhus U.) ; Andersen, Søren L (Aarhus U.) ; Esberg, Jakob (Aarhus U.) ; Knudsen, Helge (Aarhus U.) ; Mikkelsen, Rune (Aarhus U.) ; Uggerhøj, Ulrik I (Aarhus U.) ; Sona, Pietro (Florence U.) ; Mangiarotti, Alessio (Coimbra U.) ; Ketel, Tjeerd J (Vrije U., Amsterdam) ; Ballestrero, Sergio (Johannesburg U.)
/CERN NA63 Collaboration
We report the first observation of a shoulder in the radiation spectrum from GeV electrons in a structured target consisting of two thin and closely spaced foils. The position of the shoulder depends on the target spacing and is directly connected to the finite formation length of a low-energy photon emitted by an ultrarelativistic electron. [...]
2012
- Published in : Phys. Rev. Lett. 108 (2012) 071802
APS published version, local copy: PDF;
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