论文标题
在电动层过渡中，气泡壁速度超出了领先的近似值
Bubble wall velocity beyond leading-log approximation in electroweak phase transition
论文作者
论文摘要
气泡壁速度对于早期宇宙中的相变动力学及其宇宙学意义至关重要，例如相变引力波和电力型重生的能量预算。确定壁速度的一个关键因素是碰撞项，该碰撞量量化了等离子体和气泡壁中的大量颗粒之间的相互作用。我们将碰撞项的计算超出了前导近似值，并进一步获得了代表性有效模型的更精确的气泡壁速度。
The bubble wall velocity is essential for the phase transition dynamics in the early universe and its cosmological implications, such as the energy budget of phase transition gravitational wave and electroweak baryogenesis. One key factor to determine the wall velocity is the collision term that quantifies the interactions between the massive particles in the plasma and the bubble wall. We improve the calculations of the collision term beyond the leading-log approximation, and further obtain more precise bubble wall velocity for a representative effective model.
