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Chiral condensate beyond the one-loop approximation

  • Elementary Particles and Fields Theory
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Abstract

A two-dimensional model involving a fermion field and a self-interacting scalar field with Yukawa interaction is studied beyond the one-loop approximation. It is shown that, in this model, the chiral condensate vanishes at two values of the Yukawa coupling constant. In one case, the respective symmetry is restored, while, in the other case, it is not restored.

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Authors and Affiliations

  1. Institute for Theoretical and Experimental Physics, National Research Center Kurchatov Institute, Bol’shaya Cheremuskinskaya ul. 25, Moscow, 117218, Russia

    V. G. Ksenzov

  2. National Research Nuclear University MEPhI, Kashirskoe sh. 31, Moscow, 115409, Russia

    A. I. Romanov

Authors
  1. V. G. Ksenzov
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  2. A. I. Romanov
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Correspondence to A. I. Romanov.

Additional information

Original Russian Text © V.G. Ksenzov, A.I. Romanov, 2017, published in Yadernaya Fizika, 2017, Vol. 80, No. 3, pp. 249–252.

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Ksenzov, V.G., Romanov, A.I. Chiral condensate beyond the one-loop approximation. Phys. Atom. Nuclei 80, 465–468 (2017). https://doi.org/10.1134/S1063778817030176

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  • DOI: https://doi.org/10.1134/S1063778817030176

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