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Abstract <p>Decays of light pseudoscalar mesons play an important role in the search for dark matter signals in fixed-target experiments. The intermediate vector meson state is shown to be of importance in the analysis of dark photon physics in the decays of neutral mesons. Constraints on the dark photon model for the optimistic statistics of the NA64 experiment with a beam of negative pions are presented.</p>

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Studying Dark Photon Models in Decays of Neutral Mesons

  • 期刊论文

  • 发表日期：

    2025年4月1日

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  • A. S. Zhevlakov,
  • V. E. Lyubovitskij,
  • D. V. Kirpichnikov,
  • S. Kuleshov,
  • S. N. Gninenko

摘要

Abstract

Decays of light pseudoscalar mesons play an important role in the search for dark matter signals in fixed-target experiments. The intermediate vector meson state is shown to be of importance in the analysis of dark photon physics in the decays of neutral mesons. Constraints on the dark photon model for the optimistic statistics of the NA64 experiment with a beam of negative pions are presented.