Pion contamination in the MICE muon beam

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...

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Detalles Bibliográficos
Autores principales: Bogomilov, M., Tsenov, R., Vankova-Kirilova, G., Bertoni, R., Bonesini, M., Chignoli, F., Mazza, R., Palladino, V., de Bari, A., Cecchet, G., Capponi, M., Iaciofano, A., Orestano, D., Pastore, F., Tortora, L., Kuno, Y., Sakamoto, H., Ishimoto, S., Japan, Ibaraki, Filthaut, F., Hansen, O.M., Ramberger, S., Vretenar, M., Asfandiyarov, R., Blondel, A., Drielsma, F., Karadzhov, Y., Charnley, G., Collomb, N., Gallagher, A., Grant, A., Griffiths, S., Hartnett, T., Martlew, B., Moss, A., Muir, A., Mullacrane, I., Oates, A., Owens, P., Stokes, G., Warburton, P., White, C., Adams, D., Barclay, P., Bayliss, V., Bradshaw, T.W., Courthold, M., Francis, V., Fry, L., Hayler, T., Hills, M., Lintern, A., Macwaters, C., Nichols, A., Preece, R., Ricciardi, S., Rogers, C., Stanley, T., Tarrant, J., Watson, S., Wilson, A., Bayes, R., Nugent, J.C., Soler, F.J.P., Cooke, P., Gamet, R., Alekou, A., Apollonio, M., Barber, G., Colling, D., Dobbs, A., Dornan, P., Hunt, C., Lagrange, J-B., Long, K., Martyniak, J., Middleton, S., Pasternak, J., Santos, E., Savidge, T., Uchida, M.A., Blackmore, V.J., Carlisle, T., Cobb, J.H., Lau, W., Rayner, M.A., Tunnell, C.D., Booth, C.N., Hodgson, P., Langlands, J., Nicholson, R., Overton, E., Robinson, M., Smith, P.J., Dick, A., Ronald, K., Speirs, D., Whyte, C.G., Young, A., Boyd, S., Franchini, P., Greis, J.R., Pidcott, C., Taylor, I., Gardener, R., Kyberd, P., Littlefield, M., Nebrensky, J.J., Bross, A.D., Fitzpatrick, T., Leonova, M., Moretti, A., Neuffer, D., Popovic, M., Rubinov, P., Rucinski, R., Roberts, T.J., Bowring, D., DeMello, A., Gourlay, S., Li, D., Prestemon, S., Virostek, S., Zisman, M., Drews, M., Hanlet, P., Kafka, G., Kaplan, D.M., Rajaram, D., Snopok, P., Torun, Y., Winter, M., Blot, S., Kim, Y.K., Bravar, U., Onel, Y., Cremaldi, L.M., Hart, T.L., Luo, T., Sanders, D.A., Summers, D.J., Cline, D., Yang, X., Coney, L., Hanson, G.G., Heidt, C.
Lenguaje:eng
Publicado: 2015
Materias:
Detectors and Experimental Techniques
Acceso en línea:https://dx.doi.org/10.1088/1748-0221/11/03/P03001
http://cds.cern.ch/record/2064255
Descripción
Sumario: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.

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