Precise Extraction of the Induced Polarization in the 4He(e,el(p)over-right-arrow)3H Reaction

被引:25
|
作者
Malace, S. P. [1 ]
Paolone, M. [1 ]
Strauch, S. [1 ]
Albayrak, I. [2 ]
Arrington, J. [3 ]
Berman, B. L. [4 ]
Brash, E. J. [5 ]
Briscoe, B. [4 ]
Camsonne, A. [6 ]
Chen, J. -P. [6 ]
Christy, M. E. [2 ]
Chudakov, E. [6 ]
Cisbani, E. [7 ,8 ]
Craver, B. [9 ]
Cusanno, F. [7 ,8 ]
Ent, R. [6 ]
Garibaldi, F. [7 ,8 ]
Gilman, R. [6 ,10 ]
Glamazdin, O. [11 ]
Glister, J. [12 ,13 ]
Higinbotham, D. W. [6 ]
Hyde-Wright, C. E. [14 ]
Ilieva, Y. [1 ]
de Jager, C. W. [6 ]
Jiang, X. [10 ]
Jones, M. K. [6 ]
Keppel, C. E. [2 ]
Khrosinkova, E. [15 ]
Kuchina, E. [10 ]
Kumbartzki, G. [10 ]
Lee, B. [16 ]
Lindgren, R. [9 ]
Margaziotis, D. J. [17 ]
Meekins, D. [6 ]
Michaels, R. [6 ]
Park, K. [6 ]
Pentchev, L. [18 ]
Perdrisat, C. F. [18 ]
Piasetzky, E. [19 ]
Punjabi, V. A. [20 ]
Puckett, A. J. R. [21 ]
Qian, X. [22 ]
Qiang, Y. [21 ]
Ransome, R. D. [10 ]
Saha, A. [6 ]
Sarty, A. J. [12 ]
Schulte, E. [10 ]
Solvignon, P. [3 ]
Subedi, R. R. [15 ]
Tang, L. [2 ]
机构
[1] Univ S Carolina, Columbia, SC 29208 USA
[2] Hampton Univ, Hampton, VA 23668 USA
[3] Argonne Natl Lab, Argonne, IL 60439 USA
[4] George Washington Univ, Washington, DC 20052 USA
[5] Christopher Newport Univ, Newport News, VA 23606 USA
[6] Thomas Jefferson Natl Accelerator Facil, Newport News, VA 23606 USA
[7] Ist Nazl Fis Nucl, Sanita Grp, I-00161 Rome, Italy
[8] Ist Super Sanita, I-00161 Rome, Italy
[9] Univ Virginia, Charlottesville, VA 22904 USA
[10] Rutgers State Univ, Piscataway, NJ 08854 USA
[11] Kharkov Phys & Technol Inst, UA-310108 Kharkov, Ukraine
[12] St Marys Univ, Halifax, NS B3H 3C3, Canada
[13] Dalhousie Univ, Halifax, NS, Canada
[14] Old Dominion Univ, Norfolk, VA 23529 USA
[15] Kent State Univ, Kent, OH 44242 USA
[16] Seoul Natl Univ, Seoul, South Korea
[17] Calif State Univ Los Angeles, Los Angeles, CA 90032 USA
[18] Coll William & Mary, Williamsburg, VA 23187 USA
[19] Tel Aviv Univ, IL-69978 Tel Aviv, Israel
[20] Norfolk State Univ, Norfolk, VA 23504 USA
[21] MIT, Cambridge, MA 02139 USA
[22] Duke Univ, Durham, NC 27708 USA
[23] Univ Complutense Madrid, E-28040 Madrid, Spain
[24] CSIC, Inst Estruct Mat, E-28006 Madrid, Spain
基金
美国国家科学基金会;
关键词
BOUND NUCLEONS;
D O I
10.1103/PhysRevLett.106.052501
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We measured with unprecedented precision the induced polarization P-y in He-4(e, e(l)(p) over right arrow)H-3 at Q(2) = 0.8 and 1.3 (GeV/c)(2). The induced polarization is indicative of reaction-mechanism effects beyond the impulse approximation. Our results are in agreement with a relativistic distorted-wave impulse approximation calculation but are overestimated by a calculation with strong charge-exchange effects. Our data are used to constrain the strength of the spin-independent charge-exchange term in the latter calculation.
引用
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页数:5
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