Study of the wave packet treatment of neutrino oscillation at Daya Bay

doi:10.1140/epjc/s10052-017-4970-y

	Study of the wave packet treatment of neutrino oscillation at Daya Bay
	Daya Bay Collaboration
刊名	EUROPEAN PHYSICAL JOURNAL C
	2017
卷号	77 期号:9 页码:606
ISSN号	1434-6044
DOI	10.1140/epjc/s10052-017-4970-y
文献子类	Article
英文摘要	The disappearance of reactor (v) over bar (e) observed by the Daya Bay experiment is examined in the framework of a model in which the neutrino is described by a wave packet with a relative intrinsic momentum dispersion sigma(rel). Three pairs of nuclear reactors and eight antineutrino detectors, each with good energy resolution, distributed among three experimental halls, supply a high-statistics sample of (v) over bar (e) acquired at nine different baselines. This provides a unique platform to test the effects which arise from the wave packet treatment of neutrino oscillation. The modified survival probability formula was used to fit Daya Bay data, providing the first experimental limits: 2.38 x 10(-1)7 < sigma(rel) < 0.23. Treating the dimensions of the reactor cores and detectors as constraints, the limits are improved: 10-(14) less than or similar to sigma(rel) < 0.23, and an upper limit of sigma(rel) < 0.20 (which corresponds to sigma(x) greater than or similar to 10(-11) cm) is obtained. All limits correspond to a 95% C. L. Furthermore, the effect due to the wave packet nature of neutrino oscillation is found to be insignificant for reactor antineutrinos detected by the Daya Bay experiment thus ensuring an unbiased measurement of the oscillation parameters sin(2) 2 theta(13) and Delta m(32)(2) within the plane wave model.
电子版国际标准刊号	1434-6052
WOS关键词	LONG-BASE-LINE ; REACTOR ; COHERENCE ; DECOHERENCE ; DETECTOR ; SEARCH ; SYSTEM ; FLUX
WOS研究方向	Physics
语种	英语
WOS记录号	WOS:000410893100002
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/284307]
专题	高能物理研究所_实验物理中心
作者单位	中国科学院高能物理研究所
推荐引用方式 GB/T 7714	Daya Bay Collaboration. Study of the wave packet treatment of neutrino oscillation at Daya Bay[J]. EUROPEAN PHYSICAL JOURNAL C,2017,77(9):606.
APA	Daya Bay Collaboration.(2017).Study of the wave packet treatment of neutrino oscillation at Daya Bay.EUROPEAN PHYSICAL JOURNAL C,77(9),606.
MLA	Daya Bay Collaboration."Study of the wave packet treatment of neutrino oscillation at Daya Bay".EUROPEAN PHYSICAL JOURNAL C 77.9(2017):606.