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

来源：

EPL | 2011年 / 93卷 / 05期

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

页数：4

共 41 条

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