## Abstract

The electromagnetic mass difference of pions at finite temperature is computed. The finite temperature contribution to δm^{2}_{π} ≡ m^{2}_{π}+ - m^{2}_{π}0 is obtained to be παT^{2}, neglecting the corrections due to the ρ{variant} and A_{1} mesons. It has the same sign as the zero temperature value and is comparable to it in magnitude around T ≈ 200 MeV. The calculation is also done in case of supersymmetric QCD where it is known that at T = 0 δm^{2}_{π} = 0. The results may have implications for cosmology and for relativistic heavy ion collisions.

Original language | English (US) |
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Pages (from-to) | 181-185 |

Number of pages | 5 |

Journal | Physics Letters B |

Volume | 147 |

Issue number | 1-3 |

DOIs | |

State | Published - Nov 1 1984 |

### Bibliographical note

Funding Information:V.V. would like to thank N.D. Hari Dass for reading the manuscript and for useful comments. This research was supported in part by the US Department of Energy under contract DOE/DE-AC02-79ER-10364.

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