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

0538803 - FZÚ 2021 RIV US eng J - Článek v odborném periodiku
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
Grant CEP: GA MŠMT(CZ) LTT17018; GA MŠMT(CZ) LM2018104
Institucionální podpora: RVO:68378271
Klíčová slova: CERN LHC Coll * collimator: crystal * particle: deflection * bent crystal
Obor OECD: Particles and field physics
Impakt faktor: 4.985, rok: 2020
Způsob publikování: Open access

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.
Trvalý link: http://hdl.handle.net/11104/0316523