Transverse target single-spin asymmetry in inclusive electroproduction of charged pions and kaons

被引：37

作者：

Airapetian, A. ^{[15
,18
]}

Akopov, N. ^{[30
]}

Akopov, Z. ^{[7
]}

Aschenauer, E. C.

Augustyniak, W. ^{[29
]}

Avakian, R. ^{[30
]}

Avetissian, A. ^{[30
]}

Avetisyan, E. ^{[7
]}

Belostotski, S. ^{[13
]}

Bianchi, N. ^{[13
]}

Blok, H. P. ^{[20
,28
]}

Borissov, A. ^{[7
]}

Bowles, J. ^{[16
]}

Bryzgalov, V. ^{[22
]}

Burns, J. ^{[16
]}

Capiluppi, M. ^{[11
,12
]}

Capitani, G. P. ^{[13
]}

Cisbani, E. ^{[24
,25
]}

Ciullo, G. ^{[11
,12
]}

Contalbrigo, M. ^{[11
,12
]}

Dalpiaz, P. F. ^{[11
,12
]}

Deconinck, W. ^{[7
]}

De Leo, R. ^{[2
]}

De Nardo, L. ^{[7
,14
,26
]}

De Sanctis, E. ^{[13
]}

Diefenthaler, M. ^{[10
,17
]}

Di Nezza, P. ^{[13
]}

Dueren, M. ^{[15
]}

Ehrenfried, M. ^{[15
]}

Elbakian, G. ^{[30
]}

Ellinghaus, F. ^{[6
]}

Fabbri, R. ^{[8
]}

Fantoni, A. ^{[13
]}

Felawka, L. ^{[26
]}

Frullani, S. ^{[24
,25
]}

Gabbert, D. ^{[8
]}

Gapienko, G. ^{[22
]}

Gapienko, V. ^{[22
]}

Gavrilov, G. ^{[7
,21
,26
]}

Gharibyan, V. ^{[30
]}

Giordano, F. ^{[11
,12
,17
]}

Gliske, S. ^{[18
]}

Golembiovskaya, M. ^{[8
]}

Hadjidakis, C. ^{[13
]}

Hartig, M. ^{[7
]}

Hasch, D. ^{[8
,13
]}

Hillenbrand, A. ^{[8
]}

Hoek, M. ^{[16
]}

Holler, Y. ^{[7
]}

Hristova, I. ^{[8
]}

机构：

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

[2] Ist Nazl Fis Nucl, Sez Bari, I-70124 Bari, Italy

[3] Peking Univ, Sch Phys, Beijing 100871, Peoples R China

[4] Univ Basque Country UPV EHU, Dept Theoret Phys, Bilbao 48080, Spain

[5] Basque Fdn Sci, IKERBASQUE, Bilbao 48011, Spain

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

[7] DESY, D-22603 Hamburg, Germany

[8] DESY, D-15738 Zeuthen, Germany

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

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

[11] Univ Ferrara, Ist Nazl Fis Nucl, Sez Ferrara, I-44122 Ferrara, Italy

[12] Univ Ferrara, Dipartimento Fis & Sci Terra, I-44122 Ferrara, Italy

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

[14] Univ Ghent, Dept Phys & Astron, B-9000 Ghent, Belgium

[15] Univ Giessen, Inst Phys 2, D-35392 Giessen, Germany

[16] Univ Glasgow, Sch Phys & Astron, SUPA, Glasgow G12 8QQ, Lanark, Scotland

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

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

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

[20] Natl Inst Subat Phys Nikhef, NL-1009 DB Amsterdam, Netherlands

[21] KP Konstantinov Petersburg Nucl Phys Inst, Gatchina 188300, Leningrad Regio, Russia

[22] Inst High Energy Phys, Protvino 142281, Moscow Region, Russia

[23] Univ Regensburg, Inst Theoret Phys, D-93040 Regensburg, Germany

[24] Ist Nazl Fis Nucl, Grp Collegato Saulta, Sez Roma, I-00161 Rome, Italy

[25] Ist Super Sanita, I-00161 Rome, Italy

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

[27] Tokyo Inst Technol, Dept Phys, Tokyo 152, Japan

[28] Vrije Univ Amsterdam, Dept Phys & Astron, NL-1081 HV Amsterdam, Netherlands

[29] Natl Ctr Nucl Res, PL-00689 Warsaw, Poland

[30] Yerevan Phys Inst, Yerevan 375036, Armenia

来源：

PHYSICS LETTERS B | 2014年 / 728卷

基金：

美国国家科学基金会; 英国工程与自然科学研究理事会; 加拿大自然科学与工程研究理事会; 中国国家自然科学基金; 英国科学技术设施理事会;

关键词：

CHIRAL-ODD CONTRIBUTION; ANALYZING POWER; POLARIZED ANTIPROTONS; SIVERS ASYMMETRIES; PI(0) PRODUCTION; HARD SCATTERING; CROSS-SECTIONS; ARROW-P; COLLINS; COLLISIONS;

D O I：

10.1016/j.physletb.2013.11.021

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Single-spin asymmetries were investigated in inclusive electroproduction of charged pions and kaons from transversely polarized protons at the HERMES experiment. The asymmetries were studied as a function of the azimuthal angle psi about the beam direction between the target-spin direction and the hadron production plane, the transverse hadron momentum P-T relative to the direction of the incident beam, and the Feynman variable x(F). The sin psi* amplitudes are positive for pi(+) and K+ slightly negative for pi(-) and consistent with zero for K-, with particular P-T but weak x(F) dependences. Especially large asymmetries are observed for two small subsamples of events, where also the scattered electron was recorded by the spectrometer. (C) 2013 The Authors. Published by Elsevier B.V. All rights reserved.

引用

页码：183 / 190

页数：8

共 72 条

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