Pion contamination in the MICE muon beam

D. Adams; A. Alekou; M. Apollonio; R. Asfandiyarov; G. Barber; P. Barclay; A. de Bari; R. Bayes; V. Bayliss; R. Bertoni; V.J. Blackmore; A. Blondel; S. Blot; M. Bogomilov; M. Bonesini; C.N. Booth; D. Bowring; S. Boyd; T.W. Brashaw; U. Bravar; A.D. Bross; M. Capponi; T. Carlisle; G. Cecchet; C. Charnley; F. Chignoli; D. Cline; J.H. Cobb; G. Colling; N. Collomb; L. Coney; P. Cooke; M. Courthold; L.M. Cremaldi; A. DeMello; A. Dick; A. Dobbs; P. Dornan; M. Drews; F. Drielsma; F. Filthaut; T. Fitzpatrick; P. Franchini; V. Francis; L. Fry; A. Gallagher; R. Gamet; R. Gardener; S. Gourlay; A. Grant; J.R. Greis; S. Griffiths; P. Hanlet; O.M. Hansen; G.G. Hanson; T.L. Hart; T. Hartnett; T. Hayler; C. Heidt; M. Hills; P. Hodgson; C. Hunt; A. Iaciofano; S. Ishimoto; G. Kafka; D.M. Kaplan; Y. Karadzhov; Y.K. Kim; Y. Kuno; P. Kyberd; J.-B. Lagrange; J. Langlands; W. Lau; M. Leonova; D. Li; A. Lintern; M. Littlefield; K. Long; T. Luo; C. Macwaters; B. Martlew; J. Martyniak; R. Mazza; S. Middleton; A. Moretti; A. Moss; A. Muir; I. Mullacrane; J.J. Nebrensky; D. Neuffer; A. Nichols; R. Nicholson; J.C. Nugent; A. Oates; Y. Onel; D. Orestano; E. Overton; P. Owens; V. Palladino; J. Pasternak; F. Pastore; C. Pidcott; M. Popovic; R. Preece; S. Prestemon; D. Rajaram; S. Ramberger; M.A. Rayner; S. Ricciardi; T.J. Roberts; M. Robinson; C. Rogers; K. Ronald; P. Rubinov; P. Rucinski; H. Sakamato; D.A. Sanders; E. Santos; T. Savidge; P.J. Smith; P. Snopok; F.J.P. Soler; D. Speirs; T. Stanley; G. Stokes; D.J. Summers; J. Tarrant; I. Taylor; L. Tortora; Y. Torun; R. Tsenov; C.D. Tunnell; M.A. Uchida; G. Vankova-Kirilova; S. Virostek; M. Vretenar; P. Warburton; S. Watson; C. White; C.G. Whyte; A. Wilson; M. Winter; X. Yang; A. Young; M. Zisman

doi:10.1088/1748-0221/11/03/P03001

Journal of Instrumentation

The following article is Open access

Pion contamination in the MICE muon beam

D. Adams¹², A. Alekou¹⁵, M. Apollonio¹⁵, R. Asfandiyarov¹⁰, G. Barber¹⁵, P. Barclay¹², A. de Bari⁴, R. Bayes¹³, V. Bayliss¹², R. Bertoni², V.J. Blackmore¹⁶, A. Blondel¹⁰, S. Blot²⁵, M. Bogomilov¹, M. Bonesini², C.N. Booth¹⁷, D. Bowring²³, S. Boyd¹⁹, T.W. Brashaw¹², U. Bravar²⁶, A.D. Bross²¹, M. Capponi⁵, T. Carlisle¹⁶, G. Cecchet⁴, C. Charnley¹¹, F. Chignoli², D. Cline²⁹, J.H. Cobb¹⁶, G. Colling¹⁵, N. Collomb¹¹, L. Coney³⁰, P. Cooke¹⁴, M. Courthold¹², L.M. Cremaldi²⁸, A. DeMello²³, A. Dick¹⁸, A. Dobbs¹⁵, P. Dornan¹⁵, M. Drews²⁴, F. Drielsma¹⁰, F. Filthaut⁸, T. Fitzpatrick²¹, P. Franchini¹⁹, V. Francis¹², L. Fry¹², A. Gallagher¹¹, R. Gamet¹⁴, R. Gardener²⁰, S. Gourlay²³, A. Grant¹¹, J.R. Greis¹⁹, S. Griffiths¹¹, P. Hanlet²⁴, O.M. Hansen⁹, G.G. Hanson³⁰, T.L. Hart²⁸, T. Hartnett¹¹, T. Hayler¹², C. Heidt³⁰, M. Hills¹², P. Hodgson¹⁷, C. Hunt¹⁵, A. Iaciofano⁵, S. Ishimoto⁷, G. Kafka²⁴, D.M. Kaplan²⁴, Y. Karadzhov¹⁰, Y.K. Kim²⁵, Y. Kuno⁶, P. Kyberd²⁰, J.-B. Lagrange¹⁵, J. Langlands¹⁷, W. Lau¹⁶, M. Leonova²¹, D. Li²³, A. Lintern¹², M. Littlefield²⁰, K. Long¹⁵, T. Luo²⁸, C. Macwaters¹², B. Martlew¹¹, J. Martyniak¹⁵, R. Mazza², S. Middleton¹⁵, A. Moretti²¹, A. Moss¹¹, A. Muir¹¹, I. Mullacrane¹¹, J.J. Nebrensky²⁰, D. Neuffer²¹, A. Nichols¹², R. Nicholson¹⁷, J.C. Nugent¹³, A. Oates¹¹, Y. Onel²⁷, D. Orestano⁵, E. Overton¹⁷, P. Owens¹¹, V. Palladino³, J. Pasternak¹⁵, F. Pastore⁵, C. Pidcott¹⁹, M. Popovic²¹, R. Preece¹², S. Prestemon²³, D. Rajaram²⁴, S. Ramberger⁹, M.A. Rayner¹⁶, S. Ricciardi¹², T.J. Roberts²², M. Robinson¹⁷, C. Rogers¹², K. Ronald¹⁸, P. Rubinov²¹, P. Rucinski²¹, H. Sakamato⁶, D.A. Sanders²⁸, E. Santos¹⁵, T. Savidge¹⁵, P.J. Smith¹⁷, P. Snopok²⁴, F.J.P. Soler¹³, D. Speirs¹⁸, T. Stanley¹², G. Stokes¹¹, D.J. Summers²⁸, J. Tarrant¹², I. Taylor¹⁹, L. Tortora⁵, Y. Torun²⁴, R. Tsenov¹, C.D. Tunnell¹⁶, M.A. Uchida¹⁵, G. Vankova-Kirilova¹, S. Virostek²³, M. Vretenar⁹, P. Warburton¹¹, S. Watson¹², C. White¹¹, C.G. Whyte¹⁸, A. Wilson¹², M. Winter²⁴, X. Yang²⁹, A. Young¹⁸ and M. Zisman²³

Published 1 March 2016 • © CERN 2016
Journal of Instrumentation, Volume 11, March 2016 Citation D. Adams et al 2016 JINST 11 P03001 DOI 10.1088/1748-0221/11/03/P03001

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¹ Department of Atomic Physics, St. Kliment Ohridski University of Sofia, Sofia, Bulgaria

² Sezione INFN Milano Bicocca, Dipartimento di Fisica G. Occhialini, Milano, Italy

³ Sezione INFN Napoli and Dipartimento di Fisica, Universit\` a Federico II, Complesso Universitario di Monte S. Angelo, Napoli, Italy

⁴ Sezione INFN Pavia and Dipartimento di Fisica, Pavia, Italy

⁵ Sezione INFN Roma Tre e Dipartimento di Fisica, Roma, Italy

⁶ Osaka University, Graduate School of Science, Department of Physics, Toyonaka, Osaka, Japan

⁷ High Energy Accelerator Research Organization (KEK), Institute of Particle and Nuclear Studies, Tsukuba, Ibaraki, Japan

⁸ Nikhef, Amsterdam, The Netherlands

⁹ CERN, Geneva, Switzerland

¹⁰ DPNC, section de Physique, Université de Genève, Geneva, Switzerland

¹¹ STFC Daresbury Laboratory, Daresbury, Cheshire, U.K.

¹² STFC Rutherford Appleton Laboratory, Harwell Oxford, Didcot, U.K.

¹³ School of Physics and Astronomy, Kelvin Building, The University of Glasgow, Glasgow, U.K.

¹⁴ Department of Physics, University of Liverpool, Liverpool, U.K.

¹⁵ Department of Physics, Blackett Laboratory, Imperial College London, London, U.K.

¹⁶ Department of Physics, University of Oxford, Denys Wilkinson Building, Oxford, U.K.

¹⁷ Department of Physics and Astronomy, University of Sheffield, Sheffield, U.K.

¹⁸ Department of Physics, University of Strathclyde, Glasgow, U.K.

¹⁹ Department of Physics, University of Warwick, Coventry, U.K.

²⁰ Brunel University, Uxbridge, U.K.

²¹ Fermilab, Batavia, IL, U.S.A.

²² Muons, Inc., Batavia, IL, U.S.A.

²³ Lawrence Berkeley National Laboratory, Berkeley, CA, U.S.A.

²⁴ Illinois Institute of Technology, Chicago, IL, U.S.A.

²⁵ Enrico Fermi Institute, University of Chicago, Chicago, IL, U.S.A.

²⁶ University of New Hampshire, Durham, NH, U.S.A.

²⁷ Department of Physics and Astronomy, University of Iowa, Iowa City, IA, U.S.A.

²⁸ University of Mississippi, Oxford, MS, U.S.A.

²⁹ University of California, Los Angeles, CA, U.S.A.

³⁰ University of California, Riverside, CA, U.S.A.

Dates

Received 3 November 2015
Accepted 9 February 2016
Published 1 March 2016

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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 ∼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_π < 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.

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Pion contamination in the MICE muon beam

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