有限时间路径非平衡热场理论中的中微子振荡

IF 2.2 3区 综合性期刊 Q2 MULTIDISCIPLINARY SCIENCES Symmetry-Basel Pub Date : 2023-10-24 DOI:10.3390/sym15111970
Ivan Dadić, Dubravko Klabučar
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引用次数: 0

摘要

我们证明了有限时间路径场论是计算中微子振荡的适当工具。我们使用了包含正确的狄拉克自旋和手性结构的质量混合拉格朗日量和类似Pontecorvo-Maki-Nakagawa-Sakata (PMNS)的混合矩阵来应用这一理论。模型是精确可解的。Dyson-Schwinger方程将输入自由(无质量)中微子的传播子转换为振荡(有质量)中微子的线性组合。结果与PMNS矩阵的预测一致,同时允许外推到早期。
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Neutrino Oscillations in Finite Time Path Out-of-Equilibrium Thermal Field Theory
We demonstrate that the Finite-Time-Path Field Theory is an adequate tool for calculating neutrino oscillations. We apply this theory using a mass-mixing Lagrangian which involves the correct Dirac spin and chirality structure and a Pontecorvo–Maki–Nakagawa–Sakata (PMNS)-like mixing matrix. The model is exactly solvable. The Dyson–Schwinger equations transform propagators of the input free (massless) flavor neutrinos into a linear combination of oscillating (massive) neutrinos. The results are consistent with the predictions of the PMNS matrix while allowing for extrapolation to early times.
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来源期刊
Symmetry-Basel
Symmetry-Basel MULTIDISCIPLINARY SCIENCES-
CiteScore
5.40
自引率
11.10%
发文量
2276
审稿时长
14.88 days
期刊介绍: Symmetry (ISSN 2073-8994), an international and interdisciplinary scientific journal, publishes reviews, regular research papers and short notes. Our aim is to encourage scientists to publish their experimental and theoretical research in as much detail as possible. There is no restriction on the length of the papers. Full experimental and/or methodical details must be provided, so that results can be reproduced.
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