论文标题

高磁场对遗物重力波,中微子振荡和重子不对称的影响

Impact of hypermagnetic fields on relic gravitational waves, neutrino oscillations and baryon asymmetry

论文作者

Dvornikov, Maxim

论文摘要

我们研究了电动相变之前的早期宇宙对称阶段中随机超磁场(HMF)的演变。 HMF的行为是由手性磁效应的类似物驱动的,该磁效应是瘦小和希格斯玻色子的不对称性。这些不对称也是模型的动态变量,并与HMF一起进化。此外,我们说明了有效扩散系数和$α$ -DONNAMO参数中超HD湍流的贡献。种子HMF的现实范围包括两个分支:批处理和kolmogorov。 HMF对产生的随机GWS中Supernova Neutminos的宇宙(BAU)的遗物重力波(GWS)和宇宙的Baryon不对称性的影响。我们建立了对种子HMF强度的约束,将产生的GWS的光谱密度与Ligo-Virgo-Kagra合作的观察结果进行了比较。从不超过观察到的BAU值的条件获得种子HMF上的较强的上限。

We study the evolution of random hypermagnetic fields (HMFs) in the symmetric phase of the early universe before the electroweak phase transition. The behavior of HMFs is driven by the analog of the chiral magnetic effect accounting for the asymmetries of leptons and Higgs bosons. These asymmetries are also dynamical variables of the model and evolve together with HMFs. Moreover, we account for the contribution of the hyper-MHD turbulence in the effective diffusion coefficient and the $α$-dynamo parameter. The realistic spectrum of seed HMFs consists of two branches: Batchelor and Kolmogorov ones. The impact of HMFs on the production of relic gravitational waves (GWs) and the baryon asymmetry of the universe (BAU), as well as flavor oscillations of supernova neutrinos in the stochastic GWs generated, are considered. We establish the constraint on the strength of the seed HMF comparing the spectral density of produced GWs with the observations of the LIGO-Virgo-KAGRA collaborations. The stronger upper bound on the seed HMF is obtained from the condition of not exceeding the observed value of BAU.

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