标题： 阻挡霍金辐射 显示英文标题

标题： Blocking the Hawking Radiation

摘要： 一些对不对称暗物质的严苛限制基于这样一种情景：某些类型的弱相互作用大质量粒子（WIMPs）可以在中子星内部形成微型黑洞，从而导致中子星被摧毁。 实现这一情景的关键因素是黑洞在其形成后会继续增长（最终摧毁恒星），而不是蒸发。 黑洞的命运由两种相反的机制决定，即来自恒星中心的核物质吸积以及趋于减少黑洞质量的霍金辐射。 我们研究了吸积率的假设实际上如何影响黑洞始终增长的临界质量。 我们还研究了简并核物质在多大程度上由于发射的粒子可能在恒星核心处受到泡利阻塞而阻碍霍金辐射。 显示英文摘要

摘要： Some severe constraints on asymmetric dark matter are based on the scenario that certain types of WIMPs can form mini-black holes inside neutron stars that can lead to their destruction. A crucial element for the realization of this scenario is that the black hole grows after its formation (and eventually destroys the star) instead of evaporating. The fate of the black hole is dictated by the two opposite mechanics i.e. accretion of nuclear matter from the center of the star and Hawking radiation that tends to decrease the mass of the black hole. We study how the assumptions for the accretion rate can in fact affect the critical mass beyond which a black hole always grows. We also study to what extent degenerate nuclear matter can impede Hawking radiation due to the fact that emitted particles can be Pauli blocked at the core of the star.