1.

Indirect unitarity violation entangled with matter effects in reactor antineutrino oscillations
/ Li, YuFeng ; Xing, Zhizhong ; Zhu, Jingyu
If finite but tiny masses of the three active neutrinos are generated via the canonical seesaw mechanism with three heavy sterile neutrinos, the 3×3 Pontecorvo–Maki–Nakagawa–Sakata neutrino mixing matrix V will not be exactly unitary. [...]
Published in Physics letters B (2018)
10.1016/j.physletb.2018.05.079
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2.

Renormalizationgroup equations of neutrino masses and flavor mixing parameters in matter
/ Xing, Zhizhong ; Zhou, Shun ; Zhou, YeLing
We borrow the general idea of renormalizationgroup equations (RGEs) to understand how neutrino masses and flavor mixing parameters evolve when neutrinos propagate in a medium, highlighting a meaningful possibility that the genuine flavor quantities in vacuum can be extrapolated from their mattercorrected counterparts to be measured in some realistic neutrino oscillation experiments. [...]
Published in JHEP 1805 (2018) 015
10.1007/JHEP05(2018)015
arXiv:1802.00990
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3.

μτ reflection symmetry embedded in minimal seesaw
/ Nath, Newton ; Xing, Zhizhong ; Zhang, Jue
We embed μτ reflection symmetry into the minimal seesaw formalism, where two righthanded neutrinos are added to the Standard Model of particle physics. [...]
Published in EPJC 78 (2018) 289
10.1140/epjc/s100520185751y
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4.

Neutrino mass ordering and μτ reflection symmetry breakingSupported by National Natural Science Foundation of China (11135009, 11375207)
/ Xing, Zhizhong ; Zhu, Jingyu
If the neutrino mass spectrum turns out to be m3
Published in Chinese Phys. C 41 (2017) 123103
10.1088/16741137/41/12/123103
arXiv:1707.03676
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5.

The μ  τ reflection symmetry of Dirac neutrinos and its breaking effect via quantum corrections
/ Xing, Zhizhong ; Zhang, Di ; Zhu, Jingyu
Given the Dirac neutrino mass term, we explore the constraint conditions which allow the corresponding mass matrix to be invariant under the μ  τ reflection transformation, leading us to the phenomenologically favored predictions θ 23 = π /4 and δ = 3 π /2 in the standard parametrization of the 3 × 3 lepton flavor mixing matrix. [...]
Published in JHEP 1711 (2017) 135
10.1007/JHEP11(2017)135
arXiv:1708.09144
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6.

The breaking of flavor democracy in the quark sectorSupported by National Natural Science Foundation of China (11375207) and National Basic Research Program of China (2013CB834300)
/ Fritzsch, Harald ; Xing, ZhiZhong ; Zhang, Di
The democracy of quark flavors is a wellmotivated flavor symmetry, but it must be properly broken in order to explain the observed quark mass spectrum and flavor mixing pattern [...]
Published in Chinese Phys. C 41 (2017) 093104
10.1088/16741137/41/9/093104
arXiv:1705.01391
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7.

The effective neutrino mass of neutrinoless doublebeta decays: how possible to fall into a well
/ Xing, Zhizhong ; Zhao, Zhenhua
The neutrinoless doublebeta ( 0ν2β ) decay is currently the only feasible process in particle and nuclear physics to probe whether massive neutrinos are the Majorana fermions. [...]
Published in EPJC 77 (2017) 192
10.1140/epjc/s100520174777x
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8.

Terrestrial matter effects on reactor antineutrino oscillations at JUNO or RENO50: how small is small?Supported by National Natural Science Foundation of China (11135009, 11305193), the Strategic Priority Research Program of the Chinese Academy of Sciences (XDA10010100) and the CAS Center for Excellence in Particle Physics
/ Li, Yufeng ; Wang, Yifang ; Xing, Zhizhong
We have carefully examined, in both analytical and numerical ways, how small the terrestrial matter effects can be in a given mediumbaseline reactor antineutrino oscillation experiment like JUNO or RENO50. [...]
Published in Chinese Phys. C 40 (2016) 091001
10.1088/16741137/40/9/091001
arXiv:1605.00900
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9.

Analytical approximations for matter effects on CP violation in the acceleratorbased neutrino oscillations with E ≲ 1 GeV
/ Xing, Zhizhong ; Zhu, Jingyu
Given an acceleratorbased neutrino experiment with the beam energy E ≲ 1 GeV, we expand the probabilities of ν μ → ν e and ν ¯ μ → ν ¯ e $$ {\overline{\nu}}_{\mu}\to {\overline{\nu}}_e $$ oscillations in matter in terms of two small quantities Δ 21 / Δ 31 and A/ Δ 31 , where Δ 21 ≡ m 2 2 − m 1 2 and Δ 31 ≡ m 3 2 − m 1 2 are the neutrino masssquared differences, and A measures the strength of terrestrial matter effects. [...]
Published in JHEP 1607 (2016) 011
10.1007/JHEP07(2016)011
arXiv:1603.02002
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10.

Leptonic unitarity triangles and effective mass triangles of the Majorana neutrinos
/ Xing, Zhizhong ; Zhu, Jingyu
Given the bestfit results of six neutrino oscillation parameters, we plot the Dirac and Majorana unitarity triangles (UTs) of the 3×3 lepton flavor mixing matrix to show their real shapes in the complex plane. [...]
Published in Nuclear Physics B (2016)
10.1016/j.nuclphysb.2016.03.031
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