Measurement of (ν)over-bare-electron scattering cross section with a CsI(Tl) scintillating crystal array at the Kuo-Sheng nuclear power reactor

被引：228

作者：

Deniz, M. ^{[1
,2
]}

Lin, S. T. ^{[1
]}

Singh, V. ^{[1
,3
]}

Li, J. ^{[1
,4
,5
]}

Wong, H. T. ^{[1
]}

Bilmis, S. ^{[1
,2
]}

Chang, C. Y. ^{[1
,6
]}

Chang, H. M. ^{[1
]}

Chang, W. C. ^{[1
]}

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

Chou, M. H. ^{[1
]}

Dong, K. J. ^{[7
]}

Fang, J. M. ^{[8
]}

Hu, C. H. ^{[9
]}

Jon, G. C. ^{[1
]}

Kuo, W. S. ^{[9
]}

Lai, W. P. ^{[1
]}

Lee, F. S. ^{[1
]}

Lee, S. C. ^{[1
]}

Li, H. B. ^{[1
]}

Liao, H. Y. ^{[1
]}

Lin, C. W. ^{[1
]}

Lin, F. K. ^{[1
]}

Lin, S. K. ^{[1
]}

Liu, Y. ^{[1
,4
]}

Qiu, J. F. ^{[1
,4
]}

Serin, M. ^{[2
]}

Sheng, H. Y. ^{[1
,4
]}

Singh, L. ^{[1
,3
]}

Su, R. F. ^{[8
]}

Tong, W. S. ^{[9
]}

Wang, J. J. ^{[1
]}

Wang, P. L. ^{[1
,4
]}

Wu, S. C. ^{[1
,10
]}

Yang, S. W. ^{[1
]}

Yu, C. X. ^{[11
]}

Yue, Q.

Zeyrek, M. ^{[2
]}

Zhao, D. X. ^{[1
,4
]}

Zhou, Z. Y. ^{[7
]}

Zhu, Y. F. ^{[1
,5
]}

Zhuang, B. A. ^{[1
,4
]}

机构：

[1] Acad Sinica, Inst Phys, Taipei 11529, Taiwan

[2] Middle E Tech Univ, Dept Phys, TR-06531 Ankara, Turkey

[3] Banaras Hindu Univ, Dept Phys, Varanasi 221005, Uttar Pradesh, India

[4] Chinese Acad Sci, Inst High Energy Phys, Beijing 100039, Peoples R China

[5] Tsinghua Univ, Dept Engn Phys, Beijing 100084, Peoples R China

[6] Univ Maryland, Dept Phys, College Pk, MD 20742 USA

[7] Inst Atom Energy, Dept Nucl Phys, Beijing 102413, Peoples R China

[8] Taiwan Power Co, Kuo Sheng Nucl Power Stn, Kuo Sheng 207, Taiwan

[9] Inst Nucl Energy Res, Lungtan 325, Taiwan

[10] Natl Instruments, Taipei 106, Taiwan

[11] Nankai Univ, Dept Phys, Tianjin 300071, Peoples R China

来源：

PHYSICAL REVIEW D | 2010年 / 81卷 / 07期

基金：

美国国家科学基金会;

关键词：

ELECTROMAGNETIC PROPERTIES; ELASTIC-SCATTERING; MAJORANA NEUTRINOS; MAGNETIC-MOMENT; CHARGE RADIUS; DETECTOR; LIMIT;

D O I：

10.1103/PhysRevD.81.072001

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The (nu) over bar - e(-) elastic scattering cross section was measured with a CsI( Tl) scintillating crystal array having a total mass of 187 kg. The detector was exposed to an average reactor (nu) over bar flux of 6.4 x 10(12) cm(-2) s(-1) at the Kuo-Sheng Nuclear Power Station. The experimental design, conceptual merits, detector hardware, data analysis, and background understanding of the experiment are presented. Using 29882/7369 kg-days of Reactor ON/OFF data, the standard model (SM) electroweak interaction was probed at the squared 4-momentum transfer range of Q(2) similar to 3 x 10(-6) GeV2. The ratio of experimental to SM cross sections of xi = [1.08 +/- 0.21(stat) +/- 0.16(sys)] was measured. Constraints on the electroweak parameters (g(V); g(A)) were placed, corresponding to a weak mixing angle measurement of sin(W)(2 theta) = 0.251 +/- 0.031(stat) +/- 0.024(sys). Destructive interference in the SM (nu) over bar (e) - e process was verified. Bounds on anomalous neutrino electromagnetic properties were placed: neutrino magnetic moment at mu((nu) over bare) < 2. 2 +/- 10(-10) mu(B) and the neutrino charge radius at -2.1 X 10(-32) cm(2) < < r(nu e)(2)> < 3.3 X 10(-32) cm(2), both at 90% confidence level.

引用

页数：17

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