长寿命带电粒子稀释过程中Q球衰变的熵产生
Entropy production by Q-ball decay for diluting long-lived charged particles
摘要：
宇宙中长寿命带电粒子的丰度，例如stau，受到大爆炸催化核合成的严格限制。逃避约束的方法之一是通过巨大的熵产生来稀释这些粒子。我们评估的情况下，非相对论性的物质占主导地位的宇宙的能量密度和衰变的大熵产生的稀释因子。我们发现，大Q球可以做的工作，这是自然产生的规范介导的超对称性破缺的情况。
英文摘要：
The cosmic abundance of a long-lived charged particle such as a stau is tightly constrained by the catalyzed big bang nucleosynthesis. One of the ways to evade the constraints is to dilute those particles by a huge entropy production. We evaluate the dilution factor in a case that non-relativistic matter dominates the energy density of the universe and decays with large entropy production. We find that large Q balls can do the job, which is naturally produced in the gauge-mediated supersymmetry breaking scenario.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
