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Reducing beam-related background on forward physics detectors using crystal collimation at the large hadron collider

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    0538803 - FZÚ 2021 RIV US eng J - Journal Article
    Mirarchi, D. - Avati, V. - Bruce, R. - Butcher, M. - D'Andrea, M. - Di Castro, M. - Deile, M. - Dziedzic, B. - Hiller, K. - Jakobsen, S. - Kašpar, Jan - Korcyl, K. - Lamas, I. - Masi, A. - Mereghetti, A. - Morales, H. G. - Gavrikov, Y. - Redaelli, S. - Ferrando, B. S. - Serrano, P. - Camillocci, M. S. - Turini, N.
    Reducing beam-related background on forward physics detectors using crystal collimation at the large hadron collider.
    Physical Review Applied. Roč. 14, č. 6 (2020), s. 1-20, č. článku 064066. ISSN 2331-7019. E-ISSN 2331-7019
    R&D Projects: GA MŠk(CZ) LTT17018
    Research Infrastructure: CERN-CZ II - 90104
    Institutional support: RVO:68378271
    Keywords : CERN LHC Coll * collimator: crystal * particle: deflection * bent crystal
    Subject RIV: BF - Elementary Particles and High Energy Physics
    OBOR OECD: Particles and field physics
    Impact factor: 4.985, year: 2020
    http://hdl.handle.net/11104/0316523

    Beam collimation in high-energy colliders is customarily carried out by means of massive amorphous absorbers surrounding the circulating beam. Several studies were performed in the last decades to establish an innovative collimation technique that relies on particle deflection by means of channeling between crystalline planes of a bent crystal. We report the operational use of crystal collimation in the Large Hadron Collider that was achieved during a special high-β∗β^∗β∗ physics run with low-intensity beams, representing a milestone for both accelerator and high-energy physics that could pave the way for new synergies in the near future. The deployment of this scheme was steered and motivated by machine-simulation studies, which were then confirmed experimentally using data provided by the experiments thanks to a sensitivity not accessible with the ring instrumentation.
    Permanent Link: http://hdl.handle.net/11104/0316523
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