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High-efficiency deflection of high-energy negative particles through axial channeling in a bent crystal

Deflection due to axial channeling in a silicon crystal bent along the [111] axis was observed for 150 GeV/c negative particles, mainly π− mesons, at one of the secondary beams of the CERN SPS. The whole beam was deflected to one side with the efficiency of about 90% and with the peak position at th...

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Autores principales: Scandale, Walter, Vomiero, Alberto, Bagli, E, Baricordi, Stefano, Dalpiaz, Pietro, Fiorini, Massimiliano, Guidi, Vincenzo, Mazzolari, Andrea, Vincenzi, D, Milan, R, Della Mea, Gianantonio, Vallazza, Erik, Afonin, Alexander G, Chesnokov, Yury A, Maisheev, Vladimir A, Yazynin, Igor A, Golovatyuk, V M, Kovalenko, Alexander D, Taratin, Alexander M, Denisov, Alexander S, Gavrikov, Yury A, Ivanov, Yuri M, Lapina, Lyubov P, Malyarenko, Liudmila G, Skorobogatov, Vyacheslav V, Suvorov, Vsevolod M, Vavilov, Sergey A, Bolognini, Davide, Hasan, Said, Mattera, A, Prest, Michela, Shiraishi, S
Lenguaje:eng
Publicado: 2009
Materias:
Acceso en línea:https://dx.doi.org/10.1016/j.physletb.2009.09.009
http://cds.cern.ch/record/1281360
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author Scandale, Walter
Vomiero, Alberto
Bagli, E
Baricordi, Stefano
Dalpiaz, Pietro
Fiorini, Massimiliano
Guidi, Vincenzo
Mazzolari, Andrea
Vincenzi, D
Milan, R
Della Mea, Gianantonio
Vallazza, Erik
Afonin, Alexander G
Chesnokov, Yury A
Maisheev, Vladimir A
Yazynin, Igor A
Golovatyuk, V M
Kovalenko, Alexander D
Taratin, Alexander M
Denisov, Alexander S
Gavrikov, Yury A
Ivanov, Yuri M
Lapina, Lyubov P
Malyarenko, Liudmila G
Skorobogatov, Vyacheslav V
Suvorov, Vsevolod M
Vavilov, Sergey A
Bolognini, Davide
Hasan, Said
Mattera, A
Prest, Michela
Shiraishi, S
author_facet Scandale, Walter
Vomiero, Alberto
Bagli, E
Baricordi, Stefano
Dalpiaz, Pietro
Fiorini, Massimiliano
Guidi, Vincenzo
Mazzolari, Andrea
Vincenzi, D
Milan, R
Della Mea, Gianantonio
Vallazza, Erik
Afonin, Alexander G
Chesnokov, Yury A
Maisheev, Vladimir A
Yazynin, Igor A
Golovatyuk, V M
Kovalenko, Alexander D
Taratin, Alexander M
Denisov, Alexander S
Gavrikov, Yury A
Ivanov, Yuri M
Lapina, Lyubov P
Malyarenko, Liudmila G
Skorobogatov, Vyacheslav V
Suvorov, Vsevolod M
Vavilov, Sergey A
Bolognini, Davide
Hasan, Said
Mattera, A
Prest, Michela
Shiraishi, S
author_sort Scandale, Walter
collection CERN
description Deflection due to axial channeling in a silicon crystal bent along the [111] axis was observed for 150 GeV/c negative particles, mainly π− mesons, at one of the secondary beams of the CERN SPS. The whole beam was deflected to one side with the efficiency of about 90% and with the peak position at the bend crystal angle α=43 μrad. The deflection occurs mainly due to doughnut scattering of above-barrier particles by the atomic strings of the crystal. However, due to a high probability of particle recapture into bound states with the atomic strings their contribution to the deflection should be about 15% for our case according to simulation results.
id cern-1281360
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2009
record_format invenio
spelling cern-12813602019-09-30T06:29:59Zdoi:10.1016/j.physletb.2009.09.009http://cds.cern.ch/record/1281360engScandale, WalterVomiero, AlbertoBagli, EBaricordi, StefanoDalpiaz, PietroFiorini, MassimilianoGuidi, VincenzoMazzolari, AndreaVincenzi, DMilan, RDella Mea, GianantonioVallazza, ErikAfonin, Alexander GChesnokov, Yury AMaisheev, Vladimir AYazynin, Igor AGolovatyuk, V MKovalenko, Alexander DTaratin, Alexander MDenisov, Alexander SGavrikov, Yury AIvanov, Yuri MLapina, Lyubov PMalyarenko, Liudmila GSkorobogatov, Vyacheslav VSuvorov, Vsevolod MVavilov, Sergey ABolognini, DavideHasan, SaidMattera, APrest, MichelaShiraishi, SHigh-efficiency deflection of high-energy negative particles through axial channeling in a bent crystalAccelerators and Storage RingsDeflection due to axial channeling in a silicon crystal bent along the [111] axis was observed for 150 GeV/c negative particles, mainly π− mesons, at one of the secondary beams of the CERN SPS. The whole beam was deflected to one side with the efficiency of about 90% and with the peak position at the bend crystal angle α=43 μrad. The deflection occurs mainly due to doughnut scattering of above-barrier particles by the atomic strings of the crystal. However, due to a high probability of particle recapture into bound states with the atomic strings their contribution to the deflection should be about 15% for our case according to simulation results.oai:cds.cern.ch:12813602009
spellingShingle Accelerators and Storage Rings
Scandale, Walter
Vomiero, Alberto
Bagli, E
Baricordi, Stefano
Dalpiaz, Pietro
Fiorini, Massimiliano
Guidi, Vincenzo
Mazzolari, Andrea
Vincenzi, D
Milan, R
Della Mea, Gianantonio
Vallazza, Erik
Afonin, Alexander G
Chesnokov, Yury A
Maisheev, Vladimir A
Yazynin, Igor A
Golovatyuk, V M
Kovalenko, Alexander D
Taratin, Alexander M
Denisov, Alexander S
Gavrikov, Yury A
Ivanov, Yuri M
Lapina, Lyubov P
Malyarenko, Liudmila G
Skorobogatov, Vyacheslav V
Suvorov, Vsevolod M
Vavilov, Sergey A
Bolognini, Davide
Hasan, Said
Mattera, A
Prest, Michela
Shiraishi, S
High-efficiency deflection of high-energy negative particles through axial channeling in a bent crystal
title High-efficiency deflection of high-energy negative particles through axial channeling in a bent crystal
title_full High-efficiency deflection of high-energy negative particles through axial channeling in a bent crystal
title_fullStr High-efficiency deflection of high-energy negative particles through axial channeling in a bent crystal
title_full_unstemmed High-efficiency deflection of high-energy negative particles through axial channeling in a bent crystal
title_short High-efficiency deflection of high-energy negative particles through axial channeling in a bent crystal
title_sort high-efficiency deflection of high-energy negative particles through axial channeling in a bent crystal
topic Accelerators and Storage Rings
url https://dx.doi.org/10.1016/j.physletb.2009.09.009
http://cds.cern.ch/record/1281360
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