Critical properties of the O(N) invariant scalar model using the auxiliary-mass method at finite temperature

Kenzo Ogure and Joe Sato
Phys. Rev. D 58, 085010 – Published 15 September 1998
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Abstract

Using the auxiliary-mass method, the O(N) invariant scalar model is investigated at finite temperature. This mass and an evolution equation allow us to calculate an effective potential without an infrared divergence. A second order phase transition is indicated by the effective potential. The critical exponents are determined numerically.

  • Received 21 May 1998

DOI:https://doi.org/10.1103/PhysRevD.58.085010

©1998 American Physical Society

Authors & Affiliations

Kenzo Ogure*

  • Institute for Cosmic Ray Research, University of Tokyo, Midori-cho, Tanashi, Tokyo 188, Japan

Joe Sato†

  • Department of Physics, School of Science, University of Tokyo, Tokyo 113, Japan

  • *Email address: ogure@icrhp3.icrr.u-tokyo.ac.jp
  • †Email address: joe@hep-th.phys.s.u-tokyo.ac.jp

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Vol. 58, Iss. 8 — 15 October 1998

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