论文标题
大麻血风味不对称的宇宙QCD过渡
The cosmic QCD transition for large lepton flavour asymmetries
论文作者
论文摘要
我们研究了大麻血风味不对称对宇宙QCD过渡的影响。在观察上，不平等的Lepton风味不对称的场景几乎不受限制，因此为宇宙QCD转变打开了一个全新的参数空间。我们发现，对于大型不对称，可以发生乳液的玻色丝凝结物的形成并确定相应的参数空间。在QCD过渡量表的附近，我们在泰勒膨胀方面相对于完整的化学电位表达了压力。泰勒系数依赖于文献中晶格QCD计算的输入。讨论了此方法的适用性领域。
We study the impact of large lepton flavour asymmetries on the cosmic QCD transition. Scenarios of unequal lepton flavour asymmetries are observationally almost unconstrained and therefore open up a whole new parameter space for the cosmic QCD transition. We find that for large asymmetries the formation of a Bose-Einstein condensate of pions can occur and identify the corresponding parameter space. In the vicinity of the QCD transition scale, we express the pressure in terms of a Taylor expansion with respect to the complete set of chemical potentials. The Taylor coefficients rely on input from lattice QCD calculations from the literature. The domain of applicability of this method is discussed.
