Broken s3l×s3r flavor symmetry and leptonic cp violation**supported by nnsfc (11325525), national recruitment program for young professionals and cas center for excellence in particle physics (ccepp)
文献类型：期刊论文
| 作者 | Si,Zong-guo1; Yang,Xing-hua1; Zhou,Shun2,3,4 |
| 刊名 | Chinese physics c
 |
| 出版日期 | 2017-11-01 |
| 卷号 | 41期号:11 |
| ISSN号 | 1674-1137 |
| 关键词 | 11.30.fs 11.30.hv 14.60.pq Canonical seesaw model S3l × s3r flavor symmetry Leptonic cp violation Cosmological matter-antimatter asymmetry Resonant leptogenesis |
| DOI | 10.1088/1674-1137/41/11/113105 |
| 英文摘要 | Abstract in the framework of the canonical seesaw model, we present a simple but viable scenario to explicitly break an s3l×s3r flavor symmetry in the leptonic sector. it turns out that the leptonic flavor mixing matrix is completely determined by the mass ratios of the charged leptons (i.e., me/mμ and mμ/mτ) and those of light neutrinos (i.e., m1/m2 and m2/m3). the latest global-fit results of the three neutrino mixing angles {θ12, θ13, θ23} and two neutrino mass-squared differences at the 3σ level are used to constrain the parameter space of {m1/m2,m2/m3}. the predictions for the mass spectrum and flavor mixing are highlighted: (1) the neutrino mass spectrum shows a hierarchical pattern and a normal ordering, e.g., m1≈2.2?mev, m2≈8.8?mev and m3≈52.7?mev; (2) only the first octant of θ23 is allowed, namely, 41.8°?θ23?43.3°; (3) the dirac cp-violating phase δ≈?22° deviates significantly from the maximal value ?90°. all these predictions are ready to be tested in ongoing and forthcoming neutrino oscillation experiments. moreover, we demonstrate that the cosmological matter-antimatter asymmetry can be explained via resonant leptogenesis, including the individual lepton-flavor effects. in our scenario, leptonic cp violation at low- and high-energy scales is closely connected. |
| 语种 | 英语 |
| 出版者 | IOP Publishing |
| WOS记录号 | IOP:1674-1137-41-11-113105 |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2175700 |
| 专题 | 高能物理研究所 |
| 作者单位 | 1.School of Physics, Shandong University, Jinan, Shandong 250100, China 2.Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China 3.School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China 4.Center for High Energy Physics, Peking University, Beijing 100871, China |
| 推荐引用方式 GB/T 7714 | Si,Zong-guo,Yang,Xing-hua,Zhou,Shun. Broken s3l×s3r flavor symmetry and leptonic cp violation**supported by nnsfc (11325525), national recruitment program for young professionals and cas center for excellence in particle physics (ccepp)[J]. Chinese physics c,2017,41(11). |
| APA | Si,Zong-guo,Yang,Xing-hua,&Zhou,Shun.(2017).Broken s3l×s3r flavor symmetry and leptonic cp violation**supported by nnsfc (11325525), national recruitment program for young professionals and cas center for excellence in particle physics (ccepp).Chinese physics c,41(11). |
| MLA | Si,Zong-guo,et al."Broken s3l×s3r flavor symmetry and leptonic cp violation**supported by nnsfc (11325525), national recruitment program for young professionals and cas center for excellence in particle physics (ccepp)".Chinese physics c 41.11(2017). |
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