Measurement of the Target-Normal Single-Spin Asymmetry in Deep-Inelastic Scattering from the Reaction 3He↑(e,e′)X

被引：26

作者：

Katich, J. ^{[1
,2
]}

Qian, X. ^{[3
,4
,5
]}

Zhao, Y. X. ^{[6
]}

Allada, K. ^{[7
]}

Aniol, K. ^{[8
]}

Annand, J. R. M. ^{[9
]}

Averett, T. ^{[1
]}

Benmokhtar, F. ^{[10
]}

Bertozzi, W. ^{[11
]}

Bradshaw, P. C. ^{[1
]}

Bosted, P. ^{[1
]}

Camsonne, A. ^{[12
]}

Canan, M. ^{[13
]}

Cates, G. D. ^{[14
]}

Chen, C. ^{[15
]}

Chen, J. -P. ^{[12
]}

Chen, W. ^{[3
]}

Chirapatpimol, K. ^{[14
]}

Chudakov, E. ^{[12
]}

Cisbani, E. ^{[16
,17
]}

Cornejo, J. C. ^{[8
]}

Cusanno, F. ^{[16
,17
]}

Dalton, M. M. ^{[14
]}

Deconinck, W. ^{[11
]}

de Jager, C. W. ^{[12
,14
]}

De Leo, R. ^{[18
,19
]}

Deng, X. ^{[14
]}

Deur, A. ^{[12
]}

Ding, H. ^{[14
]}

Dolph, P. A. M. ^{[14
]}

Dutta, C. ^{[7
]}

Dutta, D. ^{[20
]}

El Fassi, L. ^{[13
,21
]}

Frullani, S. ^{[16
,17
]}

Gao, H. ^{[3
]}

Garibaldi, F. ^{[16
,17
]}

Gaskell, D. ^{[12
]}

Gilad, S. ^{[11
]}

Gilman, R. ^{[12
,21
]}

Glamazdin, O. ^{[22
]}

Golge, S. ^{[13
]}

Guo, L. ^{[23
]}

Hamilton, D. ^{[9
]}

Hansen, O. ^{[12
]}

Higinbotham, D. W. ^{[12
]}

Holmstrom, T. ^{[24
]}

Huang, J. ^{[11
]}

Huang, M. ^{[3
]}

Ibrahim, H. F. ^{[25
]}

Iodice, M. ^{[26
]}

机构：

[1] Coll William & Mary, Williamsburg, VA 23187 USA

[2] Univ Colorado, Boulder, CO 80309 USA

[3] Duke Univ, Durham, NC 27708 USA

[4] CALTECH, Kellogg Radiat Lab, Pasadena, CA 91125 USA

[5] Brookhaven Natl Lab, Upton, NY 11973 USA

[6] Univ Sci & Technol China, Hefei 230026, Peoples R China

[7] Univ Kentucky, Lexington, KY 40506 USA

[8] Calif State Univ Los Angeles, Los Angeles, CA 90032 USA

[9] Univ Glasgow, Glasgow G12 8QQ, Lanark, Scotland

[10] Carnegie Mellon Univ, Pittsburgh, PA 15213 USA

[11] MIT, Cambridge, MA 02139 USA

[12] Thomas Jefferson Natl Accelerator Facil, Newport News, VA 23606 USA

[13] Old Dominion Univ, Norfolk, VA 23529 USA

[14] Univ Virginia, Charlottesville, VA 22904 USA

[15] Hampton Univ, Hampton, VA 23187 USA

[16] Ist Nazl Fis Nucl, Sez Roma, I-00161 Rome, Italy

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

[18] Ist Nazl Fis Nucl, Sez Bari, I-70126 Bari, Italy

[19] Univ Bari, I-70126 Bari, Italy

[20] Mississippi State Univ, Mississippi State, MS 39762 USA

[21] Rutgers State Univ, Piscataway, NJ 08855 USA

[22] Kharkov Inst Phys & Technol, UA-61108 Kharkov, Ukraine

[23] Los Alamos Natl Lab, Los Alamos, NM 87545 USA

[24] Longwood Univ, Farmville, VA 23909 USA

[25] Cairo Univ, Giza 12613, Egypt

[26] Ist Nazl Fis Nucl, Sez Roma3, I-00146 Rome, Italy

[27] Kyungpook Natl Univ, Taegu 702701, South Korea

[28] China Inst Atom Energy, Beijing, Peoples R China

[29] Univ New Hampshire, Durham, NH 03824 USA

[30] Florida Int Univ, Miami, FL 33199 USA

[31] Univ Massachusetts, Amherst, MA 01003 USA

[32] Temple Univ, Philadelphia, PA 19122 USA

[33] Univ Clermont Ferrand, IN2P3, F-63177 Clermont Ferrand, France

[34] Seoul Natl Univ, Seoul 151747, South Korea

[35] Ist Nazl Fis Nucl, Sez Genova, I-16146 Genoa, Italy

[36] Univ Illinois, Urbana, IL 61801 USA

[37] Syracuse Univ, Syracuse, NY 13244 USA

[38] Yerevan Phys Inst, Yerevan 375036, Armenia

[39] Univ Ljubljana, SI-1000 Ljubljana, Slovenia

[40] Kyungpook Natl Univ, Taegu 702701, South Korea

[41] Lanzhou Univ, Lanzhou 730000, Gansu, Peoples R China

来源：

PHYSICAL REVIEW LETTERS | 2014年 / 113卷 / 02期

基金：

英国科学技术设施理事会; 美国国家科学基金会;

关键词：

Germanium compounds - Inelastic scattering - Photons;

D O I：

10.1103/PhysRevLett.113.022502

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report the first measurement of the target-normal single-spin asymmetry in deep-inelastic scattering from the inclusive reaction He-3(up arrow)(e, e')X on a polarized He-3 gas target. Assuming time-reversal invariance, this asymmetry is strictly zero in the Born approximation but can be nonzero if two-photon-exchange contributions are included. The experiment, conducted at Jefferson Lab using a 5.89 GeV electron beam, covers a range of 1.7 < W < 2.9 GeV, 1.0 < Q(2) < 4.0 GeV2 and 0.16 < x < 0.65. Neutron asymmetries were extracted using the effective nucleon polarization and measured proton-to-He-3 cross-section ratios. The measured neutron asymmetries are negative with an average value of (-1.09 +/- 0.38) x 10(-2) for invariant mass W > 2 GeV, which is nonzero at the 2.89 sigma level. Our measured asymmetry agrees both in sign and magnitude with a two-photon-exchange model prediction that uses input from the Sivers transverse momentum distribution obtained from semi-inclusive deep-inelastic scattering.

引用

页数：6

共 24 条

[1] Transverse target spin asymmetry in inclusive DIS with two-photon exchange [J].

Afanasev, A. ;

Strikman, M. ;

Weiss, C. .

PHYSICAL REVIEW D, 2008, 77 (01)

[2] Search for a two-photon exchange contribution to inclusive deep-inelastic scattering [J].

Airapetian, A. ;

Akopov, N. ;

Akopov, Z. ;

Aschenauer, E. C. ;

Augustyniak, W. ;

Avakian, R. ;

Avetissian, A. ;

Avetisyan, E. ;

Ball, B. ;

Belostotski, S. ;

Bianchi, N. ;

Blok, H. P. ;

Boettcher, H. ;

Bonomo, C. ;

Borissov, A. ;

Bowles, J. ;

Bryzgalov, V. ;

Burns, J. ;

Capitani, G. P. ;

Cisbani, E. ;

Ciullo, G. ;

Contalbrigo, M. ;

Dalpiaz, P. F. ;

Deconinck, W. ;

De Nardo, L. ;

De Sanctis, E. ;

Diefenthaler, M. ;

Di Nezza, P. ;

Dueren, M. ;

Ehrenfried, M. ;

Elbakian, G. ;

Ellinghaus, F. ;

Fabbri, R. ;

Fantoni, A. ;

Felawka, L. ;

Frullani, S. ;

Gabbert, D. ;

Gapienko, G. ;

Gapienko, V. ;

Garibaldi, F. ;

Gharibyan, V. ;

Giordano, F. ;

Gliske, S. ;

Hadjidakis, C. ;

Hartig, M. ;

Hasch, D. ;

Hill, G. ;

Hillenbrand, A. ;

Hoek, M. ;

Holler, Y. .

PHYSICS LETTERS B, 2010, 682 (4-5) :351-354

[3] Observation of the Naive-T-Odd Sivers Effect in Deep-Inelastic Scattering [J].

Airapetian, A. ;

Akopov, N. ;

Akopov, Z. ;

Aschenauer, E. C. ;

Augustyniak, W. ;

Avetissian, A. ;

Avetisyan, E. ;

Bacchetta, A. ;

Ball, B. ;

Bianchi, N. ;

Blok, H. P. ;

Boettcher, H. ;

Bonomo, C. ;

Borissov, A. ;

Bryzgalov, V. ;

Burns, J. ;

Capiluppi, M. ;

Capitani, G. P. ;

Cisbani, E. ;

Ciullo, G. ;

Contalbrigo, M. ;

Dalpiaz, P. F. ;

Deconinck, W. ;

De Leo, R. ;

De Nardo, L. ;

De Sanctis, E. ;

Diefenthaler, M. ;

Di Nezza, P. ;

Dreschler, J. ;

Dueren, M. ;

Ehrenfried, M. ;

Elbakian, G. ;

Ellinghaus, F. ;

Elschenbroich, U. ;

Fabbri, R. ;

Fantoni, A. ;

Felawka, L. ;

Frullani, S. ;

Gabbert, D. ;

Gapienko, G. ;

Gapienko, V. ;

Garibaldi, F. ;

Gharibyan, V. ;

Giordano, F. ;

Gliske, S. ;

Hadjidakis, C. ;

Hartig, M. ;

Hasch, D. ;

Hill, G. ;

Hillenbrand, A. .

PHYSICAL REVIEW LETTERS, 2009, 103 (15)

[4] Basic instrumentation for Hall A at Jefferson Lab [J].

Alcorn, J ;

Anderson, BD ;

Aniol, KA ;

Annand, JRM ;

Auerbach, L ;

Arrington, J ;

Averett, T ;

Baker, FT ;

Baylac, M ;

Beise, EJ ;

Berthot, J ;

Bertin, PY ;

Bertozzi, W ;

Bimbot, L ;

Black, T ;

Boeglin, WU ;

Boykin, DV ;

Brash, EJ ;

Breton, V ;

Breuer, H ;

Brindza, P ;

Brown, D ;

Burtin, E ;

Calarco, JR ;

Cardman, LS ;

Carr, R ;

Cates, GD ;

Cavata, C ;

Chai, Z ;

Chang, CC ;

Chant, NS ;

Chen, JP ;

Choi, S ;

Chudakov, E ;

Churchwell, S ;

Coman, M ;

Cisbani, E ;

Colilli, S ;

Colombel, N ;

Crateri, R ;

Dale, DS ;

Degrande, N ;

de Jager, CW ;

De Leo, R ;

Deur, A ;

Dezern, G ;

Diederich, B ;

Dieterich, S ;

di Salvo, R ;

Djawotho, P .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2004, 522 (03) :294-346

[5] Collins and Sivers asymmetries for pions and kaons in muon-deuteron DIS [J].

Alekseev, M. ;

Alexakhin, V. Yu. ;

Alexandrov, Yu. ;

Alexeev, G. D. ;

Amoroso, A. ;

Arbuzov, A. ;

Badelek, B. ;

Balestra, F. ;

Ball, J. ;

Barth, J. ;

Baum, G. ;

Bedfer, Y. ;

Bernet, C. ;

Bertini, R. ;

Bettinelli, M. ;

Birsa, R. ;

Bisplinghoff, J. ;

Bordalo, P. ;

Bradamante, F. ;

Bravar, A. ;

Bressan, A. ;

Brona, G. ;

Burtin, E. ;

Bussa, M. P. ;

Chapiro, A. ;

Chiosso, M. ;

Cicuttin, A. ;

Colantoni, M. ;

Costa, S. ;

Crespo, M. L. ;

Dalla Torre, S. ;

Dafni, T. ;

Das, S. ;

Dasgupta, S. S. ;

De Masi, R. ;

Dedek, N. ;

Denisov, O. Yu. ;

Dhara, L. ;

Diaz, V. ;

Dinkelbach, A. M. ;

Donskov, S. V. ;

Dorofeev, V. A. ;

Doshita, N. ;

Duic, V. ;

Duennweber, W. ;

Efremov, A. V. ;

Eversheim, P. D. ;

Eyrich, W. ;

Faessler, M. ;

Falaleev, V. .

PHYSICS LETTERS B, 2009, 673 (02) :127-135

[6] Review of two-photon exchange in electron scattering [J].

Arrington, J. ;

Blunden, P. G. ;

Melnitchouk, W. .

PROGRESS IN PARTICLE AND NUCLEAR PHYSICS, 2011, 66 (04) :782-833

[7] How well do we know the electromagnetic form factors of the proton? [J].

Arrington, J .

PHYSICAL REVIEW C, 2003, 68 (03) :343251-3432514

[8] Hybrid spin-exchange optical pumping of 3He -: art. no. 123003 [J].

Babcock, E ;

Nelson, I ;

Kadlecek, S ;

Driehuys, B ;

Anderson, LW ;

Hersman, FW ;

Walker, TG .

PHYSICAL REVIEW LETTERS, 2003, 91 (12)

[9] Two-photon exchange and elastic electron-proton scattering [J].

Blunden, PG ;

Melnitchouk, W ;

Tjon, JA .

PHYSICAL REVIEW LETTERS, 2003, 91 (14)

[10] UP-DOWN ASYMMETRY IN INELASTIC ELECTRON-POLARIZED-PROTON SCATTERING [J].

CAHN, RN ;

TSAI, YS .

PHYSICAL REVIEW D, 1970, 2 (05) :870-&

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