致密星中弱相互作用的顶点重整化:超越首序
Vertex renormalization of weak interactions in compact stars: beyond leading order
摘要:
本文计算了中子星中重子物质通过弱中性矢量相互作用的中微子发射率,直到O(v_F^6)阶,其中v_F是以光速为单位的费米速度。矢量电流极化张量的计算采用了包含粒子-空穴通道中图解序列的全顶点法。对于致密星中重子的特征值v_F< 0.4,中微子发射率与O(v_F^4)相比增强了10%。
英文摘要:
Neutrino emission rate from baryonic matter in neutron stars via weak neutral vector interaction is computed up to order O(v_F^6), where v_F is the Fermi velocity in units of speed of light. The vector current polarization tensors are evaluated with full vertices which include resummed series in the particle-hole channel. The neutrino emissivity is enhanced compared to the O(v_F^4) order up of 10% for values v_F< 0.4 characteristic to baryons in compact stars.
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。