Observation of multiple volume reflection by different planes in one bent silicon crystal for high-energy negative particles

被引:15
|
作者
Scandale, W. [1 ]
Vomiero, A. [2 ]
Bagli, E. [3 ]
Baricordi, S. [3 ]
Dalpiaz, P. [3 ]
Fiorini, M. [3 ]
Guidi, V. [3 ]
Mazzolari, A. [3 ]
Vincenzi, D. [3 ]
Milan, R. [4 ]
Della Mea, G. [5 ]
Vallazza, E. [6 ]
Afonin, A. G. [7 ]
Chesnokov, Yu A. [7 ]
Maisheev, V. A. [7 ]
Yazynin, I. A. [7 ]
Kovalenko, A. D. [8 ]
Taratin, A. M. [8 ]
Denisov, A. S. [9 ]
Gavrikov, Yu A. [9 ]
Ivanov, Yu M. [9 ]
Lapina, L. P. [9 ]
Malyarenko, L. G. [9 ]
Skorobogatov, V. V. [9 ]
Suvorov, V. M. [9 ]
Vavilov, S. A. [9 ]
Bolognini, D. [10 ,11 ]
Hasan, S. [10 ,11 ]
Mattera, A. [10 ,11 ]
Prest, M. [10 ,11 ]
Tikhomirov, V. V. [12 ]
机构
[1] CERN, European Org Nucl Res, CH-1211 Geneva 23, Switzerland
[2] INFM CNR, I-25133 Brescia, Italy
[3] Univ Ferrara, Ist Nazl Fis Nucl, Sez Ferrara, Dipartimento Fis, I-44100 Ferrara, Italy
[4] Ist Nazl Fis Nucl, Lab Nazl Legnaro, I-35020 Legnaro, PD, Italy
[5] Univ Trent, Dipartimento Ingn Mat & Tecnol Ind, I-38050 Trento, Italy
[6] Ist Nazl Fis Nucl, Sez Trieste, I-34127 Trieste, Italy
[7] Inst High Energy Phys, RU-142284 Protvino, Moscow Reg, Russia
[8] Joint Inst Nucl Res, Dubna 141980, Moscow Reg, Russia
[9] Petersburg Nucl Phys Inst, Gatchina 188300, Leningrad Reg, Russia
[10] Univ Insubria, I-22100 Como, Italy
[11] Ist Nazl Fis Nucl, Sez Milano Bicocca, I-20126 Milan, Italy
[12] Belarusian State Univ, Res Inst Nucl Problems, Minsk 220030, BELARUS
基金
俄罗斯基础研究基金会;
关键词
D O I
10.1209/0295-5075/93/56002
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
Multiple volume reflection by different planes passing through the < 111 > axis in a bent silicon crystal was observed for the first time for 150 GeV/c negative particles, pi(-) mesons, at one of the secondary beams of the CERN SPS. The beam of pi(-) mesons was deflected opposite to the crystal bend by an angle of about 48 mu rad, which is 4.6 times larger than in a single volume reflection by the (110) bent planes. The one-side deflection efficiency was about 65%. Multiple volume reflection transforms to a single volume reflection when the orientation angle of the < 111 > axis relative to the beam direction is increased. Copyright (c) EPLA, 2011
引用
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页数:4
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