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Neutrino opacity in magnetized hot and dense nuclear matter

Deepak Chandra*

Ashok Goyal†

Kanupriya Goswami

  • Department of Physics & Astrophysics, University of Delhi, Delhi 110 007, India,
  • Inter University Centre for Astronomy & Astrophysics, Ganeshkhind, Pune-411007, India,
  • Department of Physics, S.G.T.B. Khalsa College, University of Delhi, Delhi 110 007, India

  • Department of Physics & Astrophysics, University of Delhi, Delhi 110 007, India,
  • Inter University Centre for Astronomy & Astrophysics, Ganeshkhind, Pune-411007, India

  • Department of Physics & Astrophysics, University of Delhi, Delhi 110 007, India
  • Department of Physics, Keshav Mahavidyalaya, Keshavpuram, Delhi 110 035, India

  • *Email address: dchandra@himalaya.du.ac.in
  • †Email address: agoyal@ducos.ernet.in
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Phys. Rev. D 65, 053003 – Published 24 January, 2002

DOI: https://doi.org/10.1103/PhysRevD.65.053003

Abstract

We study the neutrino interaction rates in hot matter at high densities in the presence of a uniform magnetic field. The neutrino cross sections involving both the charged current absorption and neutral current scattering reactions on baryons and leptons have been considered. We have in particular considered the interesting case when the magnetic field is strong enough to completely polarize the protons and electrons in supernovae and neutron stars. The opacity in such a situation is considerably modified and the cross section develops anisotropy. This has implications for phenomena invoked in the literature to explain the observed pulsar kicks.

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Phys. Rev. D 65, 053003– Published 24 January, 2002
  • Received 10 September 2001

© 2002 American Physical Society

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