1. Particle production, transport, and identification in the regime of 1−7 GeV/c
- Author
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Paola Sala, Nikolaos Charitonidis, Y. Karyotakis, A. C. Booth, Marcel Rosenthal, P. Chatzidaki, E. Nowak, I. Ortega-Ruiz, Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), and Laboratoire d'Annecy de Physique des Particules (LAPP/Laboratoire d'Annecy-le-Vieux de Physique des Particules)
- Subjects
p: production ,Physics and Astronomy (miscellaneous) ,Physics::Instrumentation and Detectors ,Hadron ,beam transport ,pi: production ,01 natural sciences ,Particle identification ,momentum resolution ,Nuclear Experiment ,Physics ,Range (particle radiation) ,Large Hadron Collider ,beam loss ,alignment ,Surfaces and Interfaces ,secondary beam ,beam optics ,GEANT ,beam: size ,numerical calculations: Monte Carlo ,performance ,Nuclear and High Energy Physics ,CERN Lab ,[PHYS.PHYS.PHYS-ACC-PH]Physics [physics]/Physics [physics]/Accelerator Physics [physics.acc-ph] ,hadron: beam ,target ,Nuclear physics ,Momentum ,FLUKA ,High-Energy Accelerators and Colliders ,0103 physical sciences ,scintillation counter: fibre ,lcsh:Nuclear and particle physics. Atomic energy. Radioactivity ,[PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det] ,010306 general physics ,Cherenkov radiation ,detector: design ,010308 nuclear & particles physics ,time-of-flight counter ,positron: beam ,Cherenkov counter ,Beamline ,K: production ,lcsh:QC770-798 ,Physics::Accelerator Physics ,beam profile ,High Energy Physics::Experiment ,gas: pressure ,Beam (structure) - Abstract
The recently constructed H4-VLE beam line, a tertiary extension branch of the existing H4 beam line in the CERN North Area, was commissioned in October 2018. The beam line was designed with the purpose of providing very low energy (VLE) hadrons and positrons to the NP-04 experiment, in the momentum range of $1--7\text{ }\mathrm{GeV}/c$. The production of these low-energy particles is achieved with a mixed hadron (pions, kaons, protons), $80\text{ }\text{ }\mathrm{GeV}/c$ secondary beam impinging on a thick target. The H4-VLE beam line has been instrumented with prototype scintillating fiber detectors providing the beam profile, intensity, and time-of-flight measurement of the beam particles, that, together with Cherenkov threshold counters, permit an event-by-event particle identification over the entire momentum spectrum. In this paper, we present detailed results of the beam line performance and the measured beam composition, as well as the comparison of these measurements with simulations performed during the design phase using fluka and geant-4-based Monte-Carlo codes.
- Published
- 2019