论文标题

由于Higgs玻色子的动力学,从重新加热到标准模型颗粒的大密度扰动在通货膨胀期间

Large Density Perturbations from Reheating to Standard Model particles due to the Dynamics of the Higgs Boson during Inflation

论文作者

Litsa, Aliki, Freese, Katherine, Sfakianakis, Evangelos I., Stengel, Patrick, Visinelli, Luca

论文摘要

宇宙微波背景(CMB)观测值用于在通货膨胀一段时间后将重新加热到标准模型(SM)颗粒。作为一个光观众场,SM Higgs玻色子在通货膨胀期间从其量子波动中获取了较大的场值,从而使SM颗粒的质量从一个哈勃斑块到另一个哈勃斑块变化,从而产生较大的密度波动。我们认为充气剂对SM颗粒的扰动和共振衰减。对于高度通货膨胀后,充气量相干振荡的扰动衰减,我们发现对充气剂衰减的重新加热温度有很强的限制。对于(higgsed)sm量规玻色子的共振颗粒产生(预热)的情况,我们发现温度波动比CMB中观察到的一系列量规耦合大于CMB,其中包括在SM中发现的量表并得出结论,并得出结论,这种预热不能是通货膨胀后重新热的宇宙的主要来源。

Cosmic Microwave Background (CMB) observations are used to constrain reheating to Standard Model (SM) particles after a period of inflation. As a light spectator field, the SM Higgs boson acquires large field values from its quantum fluctuations during inflation, gives masses to SM particles that vary from one Hubble patch to another, and thereby produces large density fluctuations. We consider both perturbative and resonant decay of the inflaton to SM particles. For the case of perturbative decay from coherent oscillations of the inflaton after high scale inflation, we find strong constraints on the reheat temperature for the inflaton decay into heavy SM particles. For the case of resonant particle production (preheating) to (Higgsed) SM gauge bosons, we find temperature fluctuations larger than observed in the CMB for a range of gauge coupling that includes those found in the SM and conclude that such preheating cannot be the main source of reheating the Universe after inflation.

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