Pion contamination in the MICE muon beam

Abstract

The international Muon Ionization Cooling Experiment (MICE) will perform a systematic investigation of ionization cooling with muon beams of momentum between 140 and 240\,MeV/c at the Rutherford Appleton Laboratory ISIS facility. The measurement of ionization cooling in MICE relies on the selection of a pure sample of muons that traverse the experiment. To make this selection, the MICE Muon Beam is designed to deliver a beam of muons with less than $\sim$1\% contamination. To make the final muon selection, MICE employs a particle-identification (PID) system upstream and downstream of the cooling cell. The PID system includes time-of-flight hodoscopes, threshold-Cherenkov counters and calorimetry. The upper limit for the pion contamination measured in this paper is $f_{\pi }<1.4\%$ at 90\% C.L., including systematic uncertainties. Therefore, the MICE Muon Beam is able to meet the stringent pion-contamination requirements of the study of ionization cooling.

arXiv comment16 pages, 7 figures

References in corpus (18)

• A Unified Approach to the Classical Statistical Analysis of Small Signals
• Neutrino Beams from Muon Storage Rings: Characteristics and Physics Potential
• Status of Muon Collider Research and Development and Future Plans
• Recent Progress in Neutrino Factory and Muon Collider Research within the Muon Collaboration
• The MICE Muon Beam on ISIS and the beam-line instrumentation of the Muon Ionization Cooling Experiment
• The design, construction and performance of the MICE scintillating fibre trackers
• The design and commissioning of the MICE upstream time-of-flight system
• Enabling Intensity and Energy Frontier Science with a Muon Accelerator Facility in the U.S.: A White Paper Submitted to the 2013 U.S. Community Summer Study of the Division of Particles and Fields of the American Physical Society
• A Cherenkov Radiation Detector with High Density Aerogels
• Characterisation of the muon beams for the Muon Ionisation Cooling Experiment
• Behaviour in Magnetic Fields of Fast Conventional and Fine-Mesh Photomultipliers
• Electron-Muon Ranger: performance in the MICE Muon Beam
• The design, construction and performance of the MICE target
• On the effects at colliding mu-meson beams
• Muon colliders and neutrino factories
• Progress of the MICE experiment at RAL
• MICE Particle Identification Systems
• Progress on Cherenkov Reconstruction in MICE

Cited by in corpus (6)

• The reconstruction software for the MICE scintillating fibre trackers
• First particle-by-particle measurement of emittance in the Muon Ionization Cooling Experiment
• First demonstration of ionization cooling by the Muon Ionization Cooling Experiment
• MAUS: The MICE Analysis User Software
• Unconventional Ideas for Ionization Cooling of Muons
• Performance of the MICE diagnostic system