标题： 超新星中的电荷共轭破坏中微子相互作用 显示英文标题

标题： Charge-conjugation violating neutrino interactions in supernovae

摘要： 标准模型中众所周知的电荷共轭破坏相互作用增加了中微子与核子的截面，减少了反中微子与核子的截面。这通过中微子能量$k$除以核子质量$M$的数量级“反冲”修正影响了核心坍缩超新星中的中微子输运。 所有$k/M$级别的中微子输运修正在原初中子星内部深处都由Boltzmann方程的角积分计算得出。我们发现这些修正显著改变了高温下的中微子流。这导致原初中子星产生大量的μ子和τ子数，并可能改变中子与质子的比例。 此外，中微子平均自由程的相对大小也发生了变化。在高温下，电子反中微子的平均自由程变得比μ子或τ子中微子的平均自由程{\it 更长的}。 显示英文摘要

摘要： The well known charge conjugation violating interactions in the Standard Model increase neutrino- and decrease anti-neutrino- nucleon cross sections. This impacts neutrino transport in core collapse supernovae through "recoil" corrections of order the neutrino energy $k$ over the nucleon mass $M$. All $k/M$ corrections to neutrino transport deep inside a protoneutron star are calculated from angular integrals of the Boltzmann equation. We find these corrections significantly modify neutrino currents at high temperatures. This produces a large mu and tau number for the protoneutron star and can change the ratio of neutrons to protons. In addition, the relative size of neutrino mean free paths changes. At high temperatures, the electron anti-neutrino mean free path becomes {\it longer} than that for mu or tau neutrinos.