Author: Mussolini, C.A.
Paper Title Page
THPAB130 Design of a Very Low Energy Beamline for NA61/SHINE 4017
 
  • C.A. Mussolini, N. Charitonidis
    CERN, Geneva, Switzerland
  • P. Burrows
    JAI, Oxford, United Kingdom
  • P. Burrows
    Oxford University, Physics Department, Oxford, Oxon, United Kingdom
  • Y. Nagai
    Colorado University at Boulder, Boulder, Colorado, USA
  • Y. Nagai
    ELTE, Budapest, Hungary
  • E.D. Zimmerman
    CIPS, Boulder, Colorado, USA
  
  A new, low-energy beamline branch is currently under consideration for the H2 beamline at the CERN North Area. This new branch would extend the capabilities of the current infrastructure enabling the study of particles in the very low, 1-13 GeV/c, momentum range. The design of this new beamline involves various stages. Firstly, a study of the secondary targets to maximise the yield of secondary hadrons. Secondly, the development of high acceptance transverse optics with high momentum resolution on the order of a few %. Finally, we discuss the first considerations on instrumentation to enable particle identification and background rejection. The first experiment to profit from this new line could be NA61/SHINE, but other possible future fixed target experiments or test-beams installed in the downstream zones could also use the low-energy particles provided. The aim is to arrive at a complete design of this branch by the end of 2021, which, pending the approval of the CERN scientific committees, could be envisaged for construction after 2024. This timescale is compatible with requests for measurements by various large international collaborations, in the next 10-year horizon.  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2021-THPAB130  
About • paper received ※ 15 May 2021       paper accepted ※ 27 July 2021       issue date ※ 27 August 2021  
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THPAB143 M2 Experimental Beamline Optics Studies for Next Generation Muon Beam Experiments at CERN 4041
 
  • D. Banerjee, J. Bernhard, M. Brugger, N. Charitonidis, G.L. D’Alessandro, A. Gerbershagen, E. Montbarbon, C.A. Mussolini, E.G. Parozzi, B. Rae, B.M. Veit
    CERN, Geneva, Switzerland
  • L. Gatignon
    Lancaster University, Lancaster, United Kingdom
  
  In the context of the Physics Beyond Colliders Project, various new experiments have been proposed for the M2 beamline at the CERN North Area fixed target experimental facility. The experiments include MUonE, NA64µ, and the successor to the COMPASS experiment, tentatively named AMBER/NA66. The AMBER/NA66 collaboration proposes to build a QCD facility requiring conventional muon and hadron beams for runs up to 2024 in the first phase of the experiment. MUonE aims to measure the hadronic contribution to the vacuum polarization in the context of the (gµ-2) anomaly with a setup longer than 40 m and a 160 GeV/c high intensity, low divergence muon beam. NA64µ is a muon beam program for dark sector physics requiring a 100 - 160 GeV/c muon beam with a 15-25 m long setup. All three experiments request similar beam times up to 2024 with compelling physics programs, which required launching extensive studies for integration, installation, beam optics, and background estimations. The experiments will be presented along with details of the studies performed to check their feasibility and compatibility with an emphasis on the updated optics for these next-generation muon beam experiments.  
poster icon Poster THPAB143 [14.259 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2021-THPAB143  
About • paper received ※ 17 May 2021       paper accepted ※ 20 July 2021       issue date ※ 25 August 2021  
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