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题名: Connecting leptonic unitarity triangle to neutrino oscillation
作者: He, HJ;  Xu, XJ
刊名: PHYSICAL REVIEW D
出版日期: 2014
卷号: 89, 期号:7, 页码:73002
关键词: CP-VIOLATION ;  MATTER ;  SPECTROSCOPY ;  MATRICES ;  QUARK ;  MODEL ;  MASS
学科分类: Physics
DOI: 10.1103/PhysRevD.89.073002
通讯作者: He, HJ (reprint author), Tsinghua Univ, Inst Modern Phys, Beijing 100084, Peoples R China.
部门归属: [He, Hong-Jian
英文摘要: The leptonic unitarity triangle (LUT) provides a geometric description of CP violations in the lepton-neutrino sector and is directly measurable in principle. In this paper, we reveal that the angles in the LUT have definite physical meaning, and demonstrate the exact connection of the LUT to neutrino oscillations. For the first time, we prove that these leptonic angles act as phase shifts in neutrino oscillations, by shifting Delta m(2)L/2E to Delta m(2)L/2E + alpha, where (L, E, alpha) denote the baseline length, neutrino energy and corresponding angle of the LUT. Each LUT has three independent parameters and contains only partial information of the Pontecorvo-Maki-Nakagawa-Sakata (PMNS) matrix. We demonstrate that the partial information in each LUT can describe the corresponding neutrino oscillation. Hence, for the first time, we uncover that any given kind of neutrino oscillations contains at most three (rather than four) independent degrees of freedom from the PMNS matrix, and this may provide a cleaner way for fitting the corresponding oscillation data.
资助者: Chinese NSF [11275101, 11135003]; National Basic Research Program [2010CB833000]
收录类别: SCI
原文出处: 查看原文
语种: 英语
WOS记录号: WOS:000334312300002
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/15799
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Recommended Citation:
He, HJ,Xu, XJ. Connecting leptonic unitarity triangle to neutrino oscillation[J]. PHYSICAL REVIEW D,2014,89(7):73002.
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