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Spectator Higgs field, large-scale gauge fields, and the nonminimal coupling to gravity

机译:观众希格斯场,大型轨距场以及与重力的非最小耦合

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Even if the Higgs field does not affect the evolution of the background geometry, its massive inhomogeneities induce large-scale gauge fields whose energy density depends on the slow-roll parameters, on the effective scalar mass and, last but not least, on the dimensionless coupling to the spacetime curvature. Since the non-Abelian gauge modes are screened, the non-minimal coupling to gravity predominantly affects the evolution of the hypercharge and electromagnetic fields. While in the case of minimal coupling the obtained constraints are immaterial, as soon as the coupling increases beyond one-fourth, the produced fields become overcritical. We chart the whole parameter space of this qualitatively new set of bounds. Whenever the limits on the curvature coupling are enforced, the magnetic field may still be partially relevant for large-scale magnetogenesis and exceed 10 ? 20 ? ? G for the benchmark scale of the protogalactic collapse.
机译:即使希格斯场不影响背景几何结构的演化,其巨大的不均匀性也会引发大尺度场,其能量密度取决于慢速滚动参数,有效标量质量以及最后但同样重要的是无量纲耦合到时空曲率。由于屏蔽了非阿贝尔规范模式,因此与重力的非最小耦合主要影响了超荷和电磁场的演化。在最小耦合的情况下,获得的约束并不重要,但是一旦耦合增加到四分之一以上,产生的场就会变得过临界。我们绘制了这个定性的新边界集的整个参数空间。只要对曲率耦合施加了限制,磁场对于大规模的磁生成仍可能部分相关,并且超过10? 20? ? G为原银河系崩塌的基准规模。

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