Beam-induced nuclear depolarization in a gaseous polarized-hydrogen target

被引：17

作者：

Ackerstaff, K ^{[1
]}

Airapetian, A

Akopov, N

Amarian, M

Aschenauer, EC

Avakian, H

Avetissian, A

Bains, B

Baumgarten, C

Beckmann, M

Belostotski, S

Belz, JE

Benisch, T

Bernreuther, S

Bianchi, N

Blouw, J

Böttcher, H

Borissov, A

Brack, J

Brauksiepe, S

Braun, B

Bray, B

Brons, S

Brückner, W

Brüll, A

Bruins, EEW

Bulten, JH

Cadman, RV

Capitani, GP

Carter, P

Chumney, P

Cisbani, E

Court, GR

Dalpiaz, PF

De Sanctis, E

De Schepper, D

Devitsin, E

Huberts, PKAD

Di Nezza, P

Düren, M

Dvoredsky, A

Elbakian, G

Fantoni, A

Fechtchenko, A

Ferstl, M

Fick, D

Fiedler, K

Filippone, BW

Fischer, H

Fox, B

机构：

[1] Univ Alberta, Dept Phys, Edmonton, AB T6G 2N2, Canada

[2] Argonne Natl Lab, Div Phys, Argonne, IL 60439 USA

[3] CALTECH, WK Kellog Radiat Lab, Pasadena, CA 91125 USA

[4] Univ Colorado, Nucl Phys Lab, Boulder, CO 80309 USA

[5] DESY, Deutsch Elektronen Synchrotron, D-22603 Hamburg, Germany

[6] DESY, D-15738 Zeuthen, Germany

[7] Joint Inst Nucl Res, Dubna 141980, Russia

[8] Univ Erlangen Nurnberg, Inst Phys, D-91058 Erlangen, Germany

[9] Univ Ferrara, Dipartimento Fis, I-44100 Ferrara, Italy

[10] Ist Nazl Fis Nucl, Lab Nazl Frascati, I-00044 Frascati, Italy

[11] Florida Int Univ, Dept Phys, Miami, FL 33199 USA

[12] State Univ Ghent, Dept Subatom & Radiat Phys, D-79104 Freiburg, Germany

[13] Max Planck Inst Kernphys, D-69029 Heidelberg, Germany

[14] Univ Illinois, Dept Phys, Urbana, IL 61801 USA

[15] Univ Kentucky, Dept Phys & Astron, Lexington, KY 40506 USA

[16] Univ Liverpool, Dept Phys, Liverpool L69 7ZE, Merseyside, England

[17] Univ Wisconsin, Dept Phys, Madison, WI 53706 USA

[18] Univ Marburg, Inst Phys, D-35037 Marburg, Germany

[19] MIT, Nucl Sci Lab, Cambridge, MA 02139 USA

[20] Univ Michigan, Randall Lab Phys, Ann Arbor, MI 48109 USA

[21] PN Lebedev Phys Inst, Moscow 117924, Russia

[22] Univ Munich, Sekt Phys, D-85748 Garching, Germany

[23] New Mexico State Univ, Dept Phys, Las Cruces, NM 88003 USA

[24] Natl Inst Kernfys Hoge Energiefys, NIKHEF, NL-1009 DB Amsterdam, Netherlands

[25] Petersburg Nucl Phys Inst, St Petersburg 188350, Russia

[26] Ist Nazl Fis Nucl, Sez Sanita, I-00161 Rome, Italy

[27] Simon Fraser Univ, Dept Phys, Burnaby, BC V5A 1S6, Canada

[28] TRIUMF, Vancouver, BC V6T 2A3, Canada

[29] Tokyo Inst Technol, Tokyo 152, Japan

[30] Free Univ Amsterdam, Dept Phys & Astron, NL-1081 HV Amsterdam, Netherlands

[31] Yerevan Phys Inst, Yerevan 375036, Armenia

来源：

PHYSICAL REVIEW LETTERS | 1999年 / 82卷 / 06期

关键词：

D O I：

10.1103/PhysRevLett.82.1164

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Spin-polarized atomic hydrogen is used as a gaseous polarized-proton target in high-energy and nuclear-physics experiments operating with internal beams in storage rings. When such beams are intense and bunched, this type of target can be depolarized by a resonant interaction with the transient magnetic field generated by the beam bunches. This effect has been studied with the HERA positron beam in the HERMES experiment at DESY. Resonances have been observed and a simple analytic model has been used to explain their shape and position. Operating conditions for the experiment have been found where there is no significant target depolarization due to this effect. [S0031-9007(98)08340-9].

引用

页码：1164 / 1168

页数：5

共 40 条

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