Measurement of "pretzelosity" asymmetry of charged pion production in semi-inclusive deep inelastic scattering on a polarized 3He target

被引：19

作者：

Zhang, Y. ^{[1
]}

Qian, X. ^{[2
,3
]}

Allada, K. ^{[4
,5
]}

Dutta, C. ^{[4
]}

Huang, J. ^{[5
,6
]}

Katich, J. ^{[7
]}

Wang, Y. ^{[8
]}

Aniol, K. ^{[9
]}

Annand, J. R. M. ^{[10
]}

Averett, T. ^{[7
]}

Benmokhtar, F. ^{[11
]}

Bertozzi, W. ^{[5
]}

Bradshaw, P. C. ^{[7
]}

Bosted, P. ^{[12
]}

Camsonne, A. ^{[12
]}

Canan, M. ^{[13
]}

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

Chen, C. ^{[15
]}

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

Chen, W. ^{[2
]}

Chirapatpimol, K. ^{[14
]}

Chudakov, E. ^{[12
]}

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

Cornejo, J. C. ^{[9
]}

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

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

Deconinck, W. ^{[5
]}

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, D. ^{[20
]}

El Fassi, L. ^{[21
]}

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

Gao, H. ^{[2
]}

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

Gaskell, D. ^{[12
]}

Gilad, S. ^{[5
]}

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

Glamazdin, O. ^{[22
]}

Golge, S. ^{[13
]}

Guo, L. ^{[6
]}

Hamilton, D. ^{[10
]}

Hansen, O. ^{[12
]}

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

Holmstrom, T. ^{[23
]}

Huang, M. ^{[2
]}

Ibrahim, H. F. ^{[24
]}

机构：

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

[2] Duke Univ, Durham, NC 27708 USA

[3] Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA

[4] Univ Kentucky, Lexington, KY 40506 USA

[5] MIT, Cambridge, MA 02139 USA

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

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

[8] Univ Illinois, Urbana, IL 61801 USA

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

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

[11] Carnegie Mellon Univ, Pittsburgh, PA 15213 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 Phys & Technol Inst, UA-61108 Kharkov, Ukraine

[23] Longwood Univ, Farmville, VA 23909 USA

[24] Cairo Univ, Giza 12613, Egypt

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

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

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

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

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

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

[31] Univ Massachusetts, Amherst, MA 01003 USA

[32] Temple Univ, Philadelphia, PA 19122 USA

[33] Univ Blaise Pascal, IN2P3, F-63177 Aubiere, France

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

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

[36] Univ Washington, Seattle, WA 98195 USA

[37] Syracuse Univ, Syracuse, NY 13244 USA

[38] Yerevan Phys Inst, Yerevan 375036, Armenia

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

来源：

PHYSICAL REVIEW C | 2014年 / 90卷 / 05期

基金：

美国国家科学基金会; 中国国家自然科学基金;

关键词：

SPIN ASYMMETRY;

D O I：

10.1103/PhysRevC.90.055209

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

An experiment to measure single-spin asymmetries of semi-inclusive production of charged pions in deep-inelastic scattering on a transversely polarized He-3 target was performed at Jefferson Laboratory in the kinematic region of 0.16 < x < 0.35 and 1.4 < Q(2) < 2.7 GeV2. Pretzelosity asymmetries on He-3, which are expressed as the convolution of the h(1T)(perpendicular to) transverse-momentum-dependent distribution functions and the Collins fragmentation functions in the leading order, were measured for the first time. Under the effective polarization approximation, we extracted the corresponding neutron asymmetries from the measured He-3 asymmetries and cross-section ratios between the proton and He-3. Our results show that both pi(+) on He-3 and on neutron pretzelosity asymmetries are consistent with zero within experimental uncertainties.

引用

页数：6

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