AAS 195th Meeting, January 2000
Session 55. Cosmological Parameters and the Early Universe
Oral, Thursday, January 13, 2000, 10:00-11:30am, Regency VII

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[55.07] Neutrino Electron Plasma Instability

C.H. Lai (Institute for Fusion Studies, University of Texas at Austin), T. Tajima (University of Texas at Austin & LLNL)

Weak interactions play an important role in early universe plasma collection, especially on neutrinos and the corresponding leptons. It also has important effects on the detail balance of the primordial nucleosynthesis, especially on the production of He and light elements. At around temperature T=300 GeV, the primordial plasma undergone electroweak spontaneous symmetry breaking (SSB) phase transition. Some of the gauge bosons and other particles gain mass via Higgs mechanism.

Deduced from Weinberg-Salam electroweak theory, a Boltzmann equation and subsequent fluid equations are derived for the primordial electron-positron-neutrino-photon plasma. A collective instability that separates the phases of electrons(and positrons) and neutrinos(and anti-neutrinos) is discussed. We also discussed the application of the fluctuation-dissipation theory in this system of plasma. Astrophysical applications and implications are explored, particularly in supernovae and possibly in GRB(Gamma Ray Bursts).

If you would like more information about this abstract, please follow the link to http://www.ph.utexas.edu/~lai/astro.html. This link was provided by the author. When you follow it, you will leave the Web site for this meeting; to return, you should use the Back comand on your browser.

The author(s) of this abstract have provided an email address for comments about the abstract: lai@physics.utexas.edu

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