{
  "id": "hep-ph/0212275",
  "version": "v4",
  "published": "2002-12-18T22:29:31.000Z",
  "updated": "2003-01-21T16:33:13.000Z",
  "title": "Thermal Pions at Finite Isospin Chemical Potential",
  "authors": [
    "M. Loewe",
    "C. Villavicencio"
  ],
  "comment": "13 pages, 5 figures",
  "journal": "Phys.Rev. D67 (2003) 074034",
  "doi": "10.1103/PhysRevD.67.074034",
  "categories": [
    "hep-ph"
  ],
  "abstract": "The density corrections, in terms of the isospin chemical potential $\\mu_I$, to the mass of the pions are studied in the framework of the SU(2) low energy effective chiral lagrangian. The pion decay constant $f_{\\pi}(T, \\mu_{I})$ is also analized. As a function of temperature for $\\mu_I =0$, the mass remains quite stable, starting to grow for very high values of $T$, confirming previous results. However, there are interesting corrections to the mass when both effects (temperature and chemical potential) are simultaneously present. At zero temperature the $\\pi ^{\\pm}$ should condensate when $\\mu_{I} = \\mp m_{\\pi}$. This is not longer valid anymore at finite $T$. The mass of the $\\pi_0$ acquires also a non trivial dependence on $\\mu_I$ due to the finite temperature.",
  "revisions": [
    {
      "version": "v4",
      "updated": "2003-01-21T16:33:13.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "11.30.Rd",
      "12.39.Fe",
      "11.10.Wx",
      "12.38.Mh"
    ],
    "keywords": [
      "finite isospin chemical potential",
      "thermal pions",
      "low energy effective chiral lagrangian",
      "temperature",
      "non trivial dependence"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Phys. Rev. D"
    },
    "note": {
      "typesetting": "TeX",
      "pages": 13,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 605180
    }
  }
}