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Vertex renormalization of weak interactions in compact stars: beyond leading order

Authors
  • Sedrakian, Armen
Type
Published Article
Publication Date
Aug 07, 2012
Submission Date
Jan 06, 2012
Identifiers
DOI: 10.1103/PhysRevC.86.025803
Source
arXiv
License
Yellow
External links

Abstract

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.

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