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Title	Observation of nuclear dechanneling length reduction for high energy protons in a short bent crystal
Author(s)	Scandale, W (CERN ; Orsay, LAL ; INFN, Rome) ; Arduini, G (CERN) ; Butcher, M (CERN) ; Cerutti, F (CERN) ; Garattini, M (CERN) ; Gilardoni, S (CERN) ; Lari, L (CERN ; Valencia U., IFIC) ; Lechner, A (CERN) ; Losito, R (CERN) ; Masi, A (CERN) ; Mereghetti, A (CERN) ; Metral, E (CERN) ; Mirarchi, D (CERN ; Imperial Coll., London) ; Montesano, S (CERN) ; Redaelli, S (CERN) ; Rossi, R (CERN ; INFN, Rome) ; Schoofs, P (CERN) ; Smirnov, G (CERN) ; Bagli, E (Ferrara U. ; INFN, Ferrara) ; Bandiera, L (Ferrara U. ; INFN, Ferrara) ; Baricordi, S (Ferrara U. ; INFN, Ferrara) ; Dalpiaz, P (Ferrara U. ; INFN, Ferrara) ; Germogli, G (Ferrara U. ; INFN, Ferrara) ; Guidi, V (Ferrara U. ; INFN, Ferrara) ; Mazzolari, A (Ferrara U. ; INFN, Ferrara) ; Vincenzi, D (Ferrara U. ; INFN, Ferrara) ; Claps, G (Frascati) ; Dabagov, S (Frascati ; 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 (Insubria U., Como ; INFN, Milan Bicocca) ; Hasan, S (Insubria U., Como ; INFN, Milan Bicocca) ; Prest, M (Insubria U., Como ; INFN, Milan Bicocca) ; Vallazza, E (INFN, Trieste)
Publication	2015
Number of pages	3
In:	Phys. Lett. B 743 (2015) 440-443
DOI	10.1016/j.physletb.2015.02.072
Subject category	Detectors and Experimental Techniques
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.
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