Leptogenesis and primordial magnetic fields
Leptogenesis and primordial magnetic fields
复制标题
轻子发生和原始磁场
DOI：
10.1088/1475-7516/2014/02/036
复制
发表时间：
2013
影响因子：
6.4
通讯作者：
T. Vachaspati
中科院分区：
文献类型：
--
作者：
A. J. Long;Eray Sabancilar;T. Vachaspati
轻子到重子的异常转换在轻子生成过程中被证明会产生一个右手螺旋磁场;相反，在电弱重子生成过程中产生的磁场被认为是左手的。如果宇宙学介质是湍流的，磁场演化到今天的相干尺度为10 pc，场强为10−18高斯。这个结果是不敏感的能量规模leptogenesis发生。对星系际磁场的振幅、相干尺度和螺旋度的观测，有望为标准模型和极早期宇宙之外的物理学提供强有力的探索。
The anomalous conversion of leptons into baryons during leptogenesis is shown to produce a right-handed helical magnetic field; in contrast, the magnetic field produced during electroweak baryogenesis is known to be left-handed. If the cosmological medium is turbulent, the magnetic field evolves to have a present day coherence scale ∼ 10 pc and field strength ∼ 10−18 Gauss. This result is insensitive to the energy scale at which leptogenesis took place. Observations of the amplitude, coherence scale, and helicity of the intergalactic magnetic field promise to provide a powerful probe of physics beyond the Standard Model and the very early universe.