论文标题
由于Yukawa部队而引起的早期结构形成的火球男性生成
Fireball baryogenesis from early structure formation due to Yukawa forces
论文作者
论文摘要
我们表明，如果某些粒子物种中的非脱子结构形成不均匀地加热等离子体，则可以在没有一阶相转变的情况下实现可行的电动性男性生成。 Yukawa的相互作用可以介导早期宇宙中相对较长的吸引力。这会产生不稳定，并导致某些物种的结构增长，即使在辐射占据主导的时代。在电动量表以下的温度下，崩溃和歼灭的光环可以加热火球中的血浆，这些血浆会扩展并创建适合产生baryon不对称的过平衡的高温环境。男性生成时的血浆温度可以低至几me，从而使其与标准和低汇总宇宙学一致。
We show that viable electroweak baryogenesis can be realized without a first-order phase transition if plasma is heated inhomogeneously by nongravitational structure formation in some particle species. Yukawa interactions can mediate relatively long-range attractive forces in the early Universe. This creates an instability and leads to growth of structure in some species even during the radiation dominated era. At temperatures below the electroweak scale, the collapsing and annihilating halos can heat up plasma in fireballs that expand and create the out-of-equilibrium high-temperature environment suitable for generating the baryon asymmetry. The plasma temperature at the time of baryogenesis can be as low as a few MeV, making it consistent with both standard and low-reheat cosmologies.
