23 results found
Collaboration TMICE, Adams D, Adey D, et al., 2018, First particle-by-particle measurement of emittance in the Muon Ionization Cooling Experiment, Publisher: arXiv
The Muon Ionization Cooling Experiment (MICE) collaboration seeks to demonstrate the feasibility of ionization cooling, the technique by which it is proposed to cool the muon beam at a future neutrino factory or muon collider. The emittance is measured from an ensemble of muons assembled from those that pass through the experiment. A pure muon ensemble is selected using a particle-identification system that can reject efficiently both pions and electrons. The position and momentum of each muon are measured using a high-precision scintillating-fibre tracker in a 4\,T solenoidal magnetic field. This paper presents the techniques used to reconstruct the phase-space distributions and reports the first particle-by-particle measurement of the emittance of the MICE Muon Beam as a function of muon-beam momentum.
Bogomilov M, Long KR, The MICE collaboration, 2017, Lattice design and expected performance of the Muon Ionization Cooling Experiment demonstration of ionization cooling, Physical Review Accelerators and Beams, Vol: 20, ISSN: 2469-9888
Muon beams of low emittance provide the basis for the intense, well-characterized neutrino beams necessary to elucidate the physics of flavor at a neutrino factory and to provide lepton-antilepton collisions at energies of up to several TeV at a muon collider. The international Muon Ionization Cooling Experiment (MICE) aims to demonstrate ionization cooling, the technique by which it is proposed to reduce the phase-space volume occupied by the muon beam at such facilities. In an ionization-cooling channel, the muon beam passes through a material in which it loses energy. The energy lost is then replaced using rf cavities. The combined effect of energy loss and reacceleration is to reduce the transverse emittance of the beam (transverse cooling). A major revision of the scope of the project was carried out over the summer of 2014. The revised experiment can deliver a demonstration of ionization cooling. The design of the cooling demonstration experiment will be described together with its predicted cooling performance.
Dobbs A, Hunt C, Long K, et al., 2016, The reconstruction software for the MICE scintillating fibre trackers, Journal of Instrumentation, Vol: 11, ISSN: 1748-0221
The Muon Ionization Cooling Experiment (MICE) will demonstrate the principle of muon beam phase-space reduction via ionization cooling. Muon beam cooling will be required for the proposed Neutrino Factory or Muon Collider. The phase-space before and after the cooling cell must be measured precisely. This is achieved using two scintillating-fibre trackers, each placed in a solenoidal magnetic field. This paper describes the software reconstruction for the fibre trackers: the GEANT4 based simulation; the implementation of the geometry; digitisation; space-point reconstruction; pattern recognition; and the final track fit based on a Kalman filter. The performance of the software is evaluated by means of Monte Carlo studies and the precision of the final track reconstruction is evaluated.
Bayes R, Bogomilov M, Carlisle T, et al., 2016, The MICE Analysis User Software (MAUS)
The MICE Analysis User Software (MAUS) is the software framework used by the MICE collaboration to provide Monte Carlo simulation of the beam and detector responses (via GEANT4), both offline and online data reconstruction and various data analysis tools. It also provides a framework for collaborators to build their own offline data-analysis tools.
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 ~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 fπ < 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.
Adams D, Alekou A, Apollonio M, et al., 2015, Electron-muon ranger: performance in the MICE muon beam, Journal of Instrumentation, Vol: 10, ISSN: 1748-0221
Adey D, Agarwalla SK, Ankenbrandt CM, et al., 2014, Light sterile neutrino sensitivity at the nuSTORM facility, Physical Review D: Particles, Fields, Gravitation and Cosmology, Vol: 89, ISSN: 1550-7998
A facility that can deliver beams of electron and muon neutrinos from the decay of a stored muon beam has the potential to unambiguously resolve the issue of the evidence for light sterile neutrinos that arises in short-baseline neutrino oscillation experiments and from estimates of the effective number of neutrino flavors from fits to cosmological data. In this paper, we show that the nuSTORM facility, with stored muons of 3.8 GeV/c ± 10%, will be able to carry out a conclusive muon neutrino appearance search for sterile neutrinos and test the LSND and MiniBooNE experimental signals with 10σ sensitivity, even assuming conservative estimates for the systematic uncertainties. This experiment would add greatly to our knowledge of the contribution of light sterile neutrinos to the number of effective neutrino flavors from the abundance of primordial helium production and from constraints on neutrino energy density from the cosmic microwave background. The appearance search is complemented by a simultaneous muon neutrino disappearance analysis that will facilitate tests of various sterile neutrino models.
Adams D, Collaboration M, Adey D, et al., 2013, Characterisation of the muon beams for the Muon Ionisation Cooling Experiment, EUROPEAN PHYSICAL JOURNAL C, Vol: 73, ISSN: 1434-6044
Adey D, Agarwalla SK, Ankenbrandt CM, et al., 2013, nuSTORM - Neutrinos from STORed Muons: Proposal to the Fermilab PAC
The nuSTORM facility has been designed to deliver beams of electron neutrinosand muon neutrinos (and their anti-particles) from the decay of a stored muonbeam with a central momentum of 3.8 GeV/c and a momentum acceptance of 10%. Thefacility is unique in that it will: 1. Allow searches for sterile neutrinos ofexquisite sensitivity to be carried out; 2. Serve future long- andshort-baseline neutrino-oscillation programs by providing definitivemeasurements of electron neutrino and muon neutrino scattering cross sectionsoff nuclei with percent-level precision; and 3. Constitutes the crucial firststep in the development of muon accelerators as a powerful new technique forparticle physics. The document describes the facility in detail anddemonstrates its physics capabilities. This document was submitted to theFermilab Physics Advisory Committee in consideration for Stage I approval.
Dobbs A, Forrest D, Soler FJP, 2013, The MICE luminosity monitor, Pages: 012084-012084
Booth CN, Hodgson P, Howlett L, et al., 2013, The design, construction and performance of the MICE target, JINST, Vol: 8, Pages: P03006-P03006
Dobbs AJ, Pasternak J, Adams DJ, et al., 2012, The MICE Muon Beam Line and Host Accelerator Beam Bump
Bogomilov M, others, 2012, The MICE Muon Beam on ISIS and the beam-line instrumentation of the Muon Ionization Cooling Experiment, JINST, Vol: 7, Pages: P05009-P05009
Dobbs A, Coney L, Adey D, 2011, MICE Muon Beamline Particle Rate and Related Beam Loss in the ISIS Synchrotron, Pages: 874-876-874-876
Bravar U, Bogomilov M, Karadzhov Y, et al., 2011, MICE: the Muon Ionization Cooling Experiment. Step I: First Measurement of Emittance with Particle Physics Detectors
Dobbs A, Rayner M, 2011, Progress in the Construction of the MICE Cooling Channel and First Measurements, Pages: 043-043
Coney L, Dobbs A, 2011, Particle Production in the MICE Beamline, Pages: 214-216-214-216
Dobbs AJ, Alekou A, Long KR, 2011, The MICE Muon Beamline and Induced Host Accelerator Beam Loss, Pages: 148-150-148-150
Dobbs AJ, 2011, Particle Rate and Host Accelerator Beam Loss on the MICE Experiment
Coney L, Dobbs A, Karadzhov Y, 2010, Particle Production in the MICE Beamline, Pages: 3530-3532-3530-3532
Dobbs A, Apollonio M, Long K, et al., 2010, The MICE Muon Beam: Status and Progress, Pages: 3467-3469-3467-3469
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