Zobrazeno 1 - 10
of 814
pro vyhledávání: '"Xing, Zhi-Zhong"'
Autor:
Xing, Zhi-zhong
The Casas-Ibarra (CI) parametrization of the Yukawa coupling matrix of Majorana neutrinos is generalized by considering the exact seesaw relation and including non-unitarity of the $3 \times 3$ Pontecorvo-Maki-Nakagawa-Sakata (PMNS) flavor mixing mat
Externí odkaz:
http://arxiv.org/abs/2410.03350
Autor:
Xing, Zhi-zhong
We present the first complete calculation of the Jarlskog invariant, a working measure of the strength of CP violation in the flavor oscillations of three light neutrino species, with the help of a full Euler-like block parametrization of the flavor
Externí odkaz:
http://arxiv.org/abs/2406.01142
Autor:
Xing, Zhi-zhong
Taking the tri-bimaximal flavor mixing pattern as a particular basis, we propose a new way to expand the $3\times 3$ unitary Pontecorvo-Maki-Nakagawa-Sakata (PMNS) lepton flavor mixing matrix $U$ in powers of the magnitude of its smallest element $\x
Externí odkaz:
http://arxiv.org/abs/2403.00559
Autor:
Luo, Shu, Xing, Zhi-zhong
We find that the precision and accuracy of current experimental data on the moduli of nine Cabibbo-Kobayashi-Maskawa (CKM) quark flavor mixing matrix elements allow us to numerically determine the it correct size of the Jarlskog invariant of CP viola
Externí odkaz:
http://arxiv.org/abs/2309.07656
Autor:
Luo, Shu, Xing, Zhi-zhong
The probabilities of $\nu^{}_{\mu} \to \nu^{}_{e}$ and $\overline{\nu}^{}_{\mu} \to \overline{\nu}^{}_{e}$ oscillations in vacuum are determined by the CP-conserving flavor mixing factors ${\cal R}^{}_{ij} \equiv {\rm Re} (U^{}_{\mu i} U^{}_{e j} U^{
Externí odkaz:
http://arxiv.org/abs/2306.16231
Autor:
Xing, Zhi-zhong
With the help of a block parametrization of the canonical seesaw flavor textures in terms of the Euler-like rotation angles and CP-violaing phases, we derive a general and explicit expression for the Jarlskog invariant of CP violation in neutrino osc
Externí odkaz:
http://arxiv.org/abs/2306.02362
Autor:
Xing, Zhi-zhong
We reformulate the canonical seesaw mechanism in the case that the electroweak gauge symmetry is unbroken, and show that it can "formally" work and allow us to derive an exact seesaw formula for the light and heavy Majorana neutrinos. We elucidate th
Externí odkaz:
http://arxiv.org/abs/2301.10461
Autor:
Xing, Zhi-zhong
Current neutrino oscillation data indicate that the $3\times 3$ Pontecorvo-Maki-Nakagawa-Sakata matrix $U$ exhibits a $\mu$-$\tau$ flavor interchange symmetry $|U^{}_{\mu i}| = |U^{}_{\tau i}|$ (for $i = 1, 2, 3$) as a good approximation. In particul
Externí odkaz:
http://arxiv.org/abs/2211.01616
Autor:
Xing, Zhi-zhong
The observed pattern of lepton flavor mixing and CP violation strongly indicates the possible existence of a simple flavor symmetry in the neutrino sector -- the effective Majorana neutrino mass term keeps invariant when the three left-handed neutrin
Externí odkaz:
http://arxiv.org/abs/2210.11922
Autor:
Xing, Zhi-zhong, Zhu, Jun-yu
The one-loop electroweak radiative corrections to coherent forward neutrino scattering in a medium slightly violates the tree-level universality of neutral-current contributions of three neutrino flavors to the matter potential that is relevant to ne
Externí odkaz:
http://arxiv.org/abs/2208.03488