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Observation of nuclear dechanneling length reduction for high energy protons in a short bent crystal


Scandale, W. (INFN, Rome) ; Arduini, G. (CERN) ; Butcher, M. (CERN) ; Cerutti, F. (CERN) ; Garattini, M. (CERN) ; Gilardoni, S. (CERN) ; Lari, L. (Valencia U., IFIC) ; Lechner, A. (CERN) ; Losito, R. (CERN) ; Masi, A. (CERN) ; Mereghetti, A. (CERN) ; Metral, E. (CERN) ; Mirarchi, D. (Imperial Coll., London) ; Montesano, S. (CERN) ; Redaelli, S. (CERN) ; Rossi, R. (INFN, Rome) ; Schoofs, P. (CERN) ; Smirnov, G. (CERN) ; Bagli, E. (INFN, Ferrara) ; Bandiera, L. (INFN, Ferrara) ; Baricordi, S. (INFN, Ferrara) ; Dalpiaz, P. (INFN, Ferrara) ; Germogli, G. (INFN, Ferrara) ; Guidi, V. (INFN, Ferrara) ; Mazzolari, A. (INFN, Ferrara) ; Vincenzi, D. (INFN, Ferrara) ; Claps, G. (Frascati) ; Dabagov, S. (Lebedev Inst.) ; Hampai, D. (Frascati) ; Murtas, F. (Frascati) ; Cavoto, G. (INFN, Rome) ; Iacoangeli, F. (INFN, Rome) ; Ludovici, L. (INFN, Rome) ; Santacesaria, R. (INFN, Rome) ; Valente, P. (INFN, Rome) ; Galluccio, F. (INFN, Naples) ; Afonin, A.G. (Serpukhov, IHEP) ; Chesnokov, Yu.A. (Serpukhov, IHEP) ; Maisheev, V.A. (Serpukhov, IHEP) ; Sandomirskiy, Yu.E. (Serpukhov, IHEP) ; Yanovich, A.A. (Serpukhov, IHEP) ; Yazynin, I.A. (Serpukhov, IHEP) ; Kovalenko, A.D. (Dubna, JINR) ; Taratin, A.M. (Dubna, JINR) ; Gavrikov, Yu.A. (St. Petersburg, INP) ; Ivanov, Yu.M. (St. Petersburg, INP) ; Lapina, L.P. (St. Petersburg, INP) ; Ferguson, W. (Imperial Coll., London) ; Fulcher, J. (Imperial Coll., London) ; Hall, G. (Imperial Coll., London) ; Pesaresi, M. (Imperial Coll., London) ; Raymond, M. (Imperial Coll., London) ; Bolognini, D. (INFN, Milan Bicocca) ; Hasan, S. (INFN, Milan Bicocca) ; Prest, M. (INFN, Milan Bicocca) ; Vallazza, E. (INFN, Trieste)

Published in: Phys.Lett.
Year: 2015
Vol.: B743
Page No: 440-443
Pages: 3
Year: 2015-03-04 published

Abstract: Deflection of 400 GeV/ c protons by a short bent silicon crystal was studied at the CERN SPS. It was shown that the dechanneling probability increases while the dechanneling length decreases with an increase of incident angles of particles relative to the crystal planes. The observation of the dechanneling length reduction provides evidence of the particle population increase at the top levels of transverse energies in the potential well of the planar channels.

Keyword(s): Crystal ; Channeling ; Beam ; Deflection

Web-Page: http://inspirehep.net/record/1353481/files/scoap3-fulltext.pdf

Total numbers of views: 1067
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DOI: 10.1016/j.physletb.2015.02.072
 Запись создана 2015-04-01, последняя модификация 2015-04-01


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