Deflection due to planar channeling and volume reflection in short bent silicon crystals was observed for the first time for 150 GeV/c negative particles, π− mesons, at one of the secondary beams of the CERN SPS. The deflection efficiency was about 30% for channeling and higher than 80% for volume reflection. Volume reflection occurs, in spite of the attractive character of the forces acting between the particles and the crystal planes, in a wide angular range of the crystal orientations determined by the crystal bend angle.

Observation of Channeling and Volume Reflection in Bent Crystals for High-Energy Negative Particles

BAGLI, Enrico;BARICORDI, Stefano;DALPIAZ, Pietro;FIORINI, Massimiliano;GUIDI, Vincenzo;MAZZOLARI, Andrea;VINCENZI, Donato;
2009

Abstract

Deflection due to planar channeling and volume reflection in short bent silicon crystals was observed for the first time for 150 GeV/c negative particles, π− mesons, at one of the secondary beams of the CERN SPS. The deflection efficiency was about 30% for channeling and higher than 80% for volume reflection. Volume reflection occurs, in spite of the attractive character of the forces acting between the particles and the crystal planes, in a wide angular range of the crystal orientations determined by the crystal bend angle.
2009
W., Scandale; A., Vomiero; Bagli, Enrico; Baricordi, Stefano; Dalpiaz, Pietro; Fiorini, Massimiliano; Guidi, Vincenzo; Mazzolari, Andrea; Vincenzi, Donato; R., Milan; Gianantonio Della, Mea; E., Vallazza; A. G., Afonin; Chesnokov, Y. u. A.; V. A., Maisheev; I. A., Yazynin; V. M., Golovatyuk; A. D., Kovalenko; A. M., Taratin; A. S., Denisov; Gavrikov, Y. u. A.; Ivanov, Y. u. M.; L. P., Lapina; L. G., Malyarenko; V. V., Skorobogatov; V. M., Suvorov; S. A., Vavilov; D., Bolognini; S., Hasan; A., Mattera; M., Prest; S., Shiraishi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11392/1380155
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