Physics Letters B (Apr 2015)
Observation of nuclear dechanneling length reduction for high energy protons in a short bent crystal
- W. Scandale,
- G. Arduini,
- M. Butcher,
- F. Cerutti,
- M. Garattini,
- S. Gilardoni,
- L. Lari,
- A. Lechner,
- R. Losito,
- A. Masi,
- A. Mereghetti,
- E. Metral,
- D. Mirarchi,
- S. Montesano,
- S. Redaelli,
- R. Rossi,
- P. Schoofs,
- G. Smirnov,
- E. Bagli,
- L. Bandiera,
- S. Baricordi,
- P. Dalpiaz,
- G. Germogli,
- V. Guidi,
- A. Mazzolari,
- D. Vincenzi,
- G. Claps,
- S. Dabagov,
- D. Hampai,
- F. Murtas,
- G. Cavoto,
- F. Iacoangeli,
- L. Ludovici,
- R. Santacesaria,
- P. Valente,
- F. Galluccio,
- A.G. Afonin,
- Yu.A. Chesnokov,
- V.A. Maisheev,
- Yu.E. Sandomirskiy,
- A.A. Yanovich,
- I.A. Yazynin,
- A.D. Kovalenko,
- A.M. Taratin,
- Yu.A. Gavrikov,
- Yu.M. Ivanov,
- L.P. Lapina,
- W. Ferguson,
- J. Fulcher,
- G. Hall,
- M. Pesaresi,
- M. Raymond,
- D. Bolognini,
- S. Hasan,
- M. Prest,
- E. Vallazza
Affiliations
- W. Scandale
- CERN, European Organization for Nuclear Research, CH-1211 Geneva 23, Switzerland; Laboratoire de l'Accelerateur Lineaire (LAL), Universite Paris Sud Orsay, Orsay, France; INFN Sezione di Roma, Piazzale Aldo Moro 2, 00185Rome, Italy
- G. Arduini
- CERN, European Organization for Nuclear Research, CH-1211 Geneva 23, Switzerland
- M. Butcher
- CERN, European Organization for Nuclear Research, CH-1211 Geneva 23, Switzerland
- F. Cerutti
- CERN, European Organization for Nuclear Research, CH-1211 Geneva 23, Switzerland
- M. Garattini
- CERN, European Organization for Nuclear Research, CH-1211 Geneva 23, Switzerland
- S. Gilardoni
- CERN, European Organization for Nuclear Research, CH-1211 Geneva 23, Switzerland
- L. Lari
- CERN, European Organization for Nuclear Research, CH-1211 Geneva 23, Switzerland; Instituto de Fisica Corpuscular (CSIC-IFIC), Valencia, Spain
- A. Lechner
- CERN, European Organization for Nuclear Research, CH-1211 Geneva 23, Switzerland
- R. Losito
- CERN, European Organization for Nuclear Research, CH-1211 Geneva 23, Switzerland
- A. Masi
- CERN, European Organization for Nuclear Research, CH-1211 Geneva 23, Switzerland
- A. Mereghetti
- CERN, European Organization for Nuclear Research, CH-1211 Geneva 23, Switzerland
- E. Metral
- CERN, European Organization for Nuclear Research, CH-1211 Geneva 23, Switzerland
- D. Mirarchi
- CERN, European Organization for Nuclear Research, CH-1211 Geneva 23, Switzerland; Imperial College, London, United Kingdom
- S. Montesano
- CERN, European Organization for Nuclear Research, CH-1211 Geneva 23, Switzerland
- S. Redaelli
- CERN, European Organization for Nuclear Research, CH-1211 Geneva 23, Switzerland
- R. Rossi
- CERN, European Organization for Nuclear Research, CH-1211 Geneva 23, Switzerland; INFN Sezione di Roma, Piazzale Aldo Moro 2, 00185Rome, Italy
- P. Schoofs
- CERN, European Organization for Nuclear Research, CH-1211 Geneva 23, Switzerland
- G. Smirnov
- CERN, European Organization for Nuclear Research, CH-1211 Geneva 23, Switzerland
- E. Bagli
- INFN Sezione di Ferrara, Dipartimento di Fisica, Università di Ferrara, Ferrara, Italy
- L. Bandiera
- INFN Sezione di Ferrara, Dipartimento di Fisica, Università di Ferrara, Ferrara, Italy
- S. Baricordi
- INFN Sezione di Ferrara, Dipartimento di Fisica, Università di Ferrara, Ferrara, Italy
- P. Dalpiaz
- INFN Sezione di Ferrara, Dipartimento di Fisica, Università di Ferrara, Ferrara, Italy
- G. Germogli
- INFN Sezione di Ferrara, Dipartimento di Fisica, Università di Ferrara, Ferrara, Italy
- V. Guidi
- INFN Sezione di Ferrara, Dipartimento di Fisica, Università di Ferrara, Ferrara, Italy
- A. Mazzolari
- INFN Sezione di Ferrara, Dipartimento di Fisica, Università di Ferrara, Ferrara, Italy
- D. Vincenzi
- INFN Sezione di Ferrara, Dipartimento di Fisica, Università di Ferrara, Ferrara, Italy
- G. Claps
- INFN LNF, via E. Fermi 40, 00044 Frascati (Roma), Italy
- S. Dabagov
- INFN LNF, via E. Fermi 40, 00044 Frascati (Roma), Italy; P.N. Lebedev Physical Institute & NRNU MEPhI, Moscow, Russia
- D. Hampai
- INFN LNF, via E. Fermi 40, 00044 Frascati (Roma), Italy
- F. Murtas
- INFN LNF, via E. Fermi 40, 00044 Frascati (Roma), Italy
- G. Cavoto
- INFN Sezione di Roma, Piazzale Aldo Moro 2, 00185Rome, Italy
- F. Iacoangeli
- INFN Sezione di Roma, Piazzale Aldo Moro 2, 00185Rome, Italy
- L. Ludovici
- INFN Sezione di Roma, Piazzale Aldo Moro 2, 00185Rome, Italy
- R. Santacesaria
- INFN Sezione di Roma, Piazzale Aldo Moro 2, 00185Rome, Italy
- P. Valente
- INFN Sezione di Roma, Piazzale Aldo Moro 2, 00185Rome, Italy
- F. Galluccio
- INFN Sezione di Napoli, Italy
- A.G. Afonin
- Institute of High Energy Physics, Moscow Region, RU-142284 Protvino, Russia
- Yu.A. Chesnokov
- Institute of High Energy Physics, Moscow Region, RU-142284 Protvino, Russia
- V.A. Maisheev
- Institute of High Energy Physics, Moscow Region, RU-142284 Protvino, Russia
- Yu.E. Sandomirskiy
- Institute of High Energy Physics, Moscow Region, RU-142284 Protvino, Russia
- A.A. Yanovich
- Institute of High Energy Physics, Moscow Region, RU-142284 Protvino, Russia
- I.A. Yazynin
- Institute of High Energy Physics, Moscow Region, RU-142284 Protvino, Russia
- A.D. Kovalenko
- Joint Institute for Nuclear Research, Joliot-Curie 6, 141980 Dubna, Moscow Region, Russia
- A.M. Taratin
- Joint Institute for Nuclear Research, Joliot-Curie 6, 141980 Dubna, Moscow Region, Russia
- Yu.A. Gavrikov
- Petersburg Nuclear Physics Institute, 188300 Gatchina, Leningrad Region, Russia
- Yu.M. Ivanov
- Petersburg Nuclear Physics Institute, 188300 Gatchina, Leningrad Region, Russia
- L.P. Lapina
- Petersburg Nuclear Physics Institute, 188300 Gatchina, Leningrad Region, Russia
- W. Ferguson
- Imperial College, London, United Kingdom
- J. Fulcher
- Imperial College, London, United Kingdom
- G. Hall
- Imperial College, London, United Kingdom
- M. Pesaresi
- Imperial College, London, United Kingdom
- M. Raymond
- Imperial College, London, United Kingdom
- D. Bolognini
- Università dell'Insubria, via Valleggio 11, 22100 Como, Italy; INFN Sezione di Milano Bicocca, Piazza della Scienza 3, 20126 Milano, Italy
- S. Hasan
- Università dell'Insubria, via Valleggio 11, 22100 Como, Italy; INFN Sezione di Milano Bicocca, Piazza della Scienza 3, 20126 Milano, Italy
- M. Prest
- Università dell'Insubria, via Valleggio 11, 22100 Como, Italy; INFN Sezione di Milano Bicocca, Piazza della Scienza 3, 20126 Milano, Italy
- E. Vallazza
- INFN Sezione di Trieste, Via Valerio 2, 34127 Trieste, Italy
- Journal volume & issue
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Vol. 743
pp. 440 – 443
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. Keywords: Crystal, Channeling, Beam, Deflection
