A further study of mu-tau symmetry breaking at neutrino telescopes after the Daya Bay and RENO measurements of theta(13)
Xing ZZ(邢志忠); Xing, ZZ
刊名PHYSICS LETTERS B
2012
卷号716期号:1页码:220-224
学科分类Physics
DOI10.1016/j.physletb.2012.08.028
通讯作者Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China
文章类型Article
英文摘要Current neutrino oscillation data indicate that theta(13) is not strongly suppressed and theta(23) might have an appreciable deviation from pi/4, implying that the 3 x 3 neutrino mixing matrix V does not have an exact mu-tau permutation symmetry. We make a further study of the effect of mu-tau symmetry breaking on the democratic flavor distribution of ultrahigh-energy (UHE) cosmic neutrinos at a neutrino telescope, and find that it is characterized by vertical bar V-mu i vertical bar(2) - vertical bar V-tau i vertical bar(2) which would vanish if either theta(33) = pi/4 and theta(13) = 0 or theta(23) = pi/4 and delta = +/-pi/2 held. We observe that the second-order mu-tau symmetry breaking term (Delta) over bar may be numerically comparable with or even larger than the first-order term Delta in the flux ratios phi(T)(e) : phi(T)(mu) : phi(T)(tau) similar or equal to (1 - 2 Delta) : (1 + Delta + (Delta) over bar) : (1 + Delta - (Delta) over bar), if sin(theta(23) - pi/4) and cos delta have the same sign. The detection of the UHE De flux via the Glashow-resonance channel (nu) over bar (e)e -> W- -> anything is also discussed by taking account of the first- and second-order mu-tau symmetry breaking effects. (C) 2012 Elsevier B.V. All rights reserved.
类目[WOS]Physics, Multidisciplinary
研究领域[WOS]Physics
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语种英语
WOS记录号WOS:000309621400019
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被引频次:3[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/236854
专题中国科学院高能物理研究所_理论物理室_期刊论文
作者单位中国科学院高能物理研究所
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Xing ZZ,Xing, ZZ. A further study of mu-tau symmetry breaking at neutrino telescopes after the Daya Bay and RENO measurements of theta(13)[J]. PHYSICS LETTERS B,2012,716(1):220-224.
APA 邢志忠,&Xing, ZZ.(2012).A further study of mu-tau symmetry breaking at neutrino telescopes after the Daya Bay and RENO measurements of theta(13).PHYSICS LETTERS B,716(1),220-224.
MLA 邢志忠,et al."A further study of mu-tau symmetry breaking at neutrino telescopes after the Daya Bay and RENO measurements of theta(13)".PHYSICS LETTERS B 716.1(2012):220-224.
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