<p>In our recent works, a new approach for constructing tree amplitudes, based on exploiting soft behaviors, was proposed. In this paper, we extend this approach to effective theories for gluons which incorporate higher-derivative interactions. By applying our method, we construct tree Yang-Mills (YM) and Yang-Mills-scalar (YMS) amplitudes with the single insertion of <i>F</i> <sup>3</sup> local operator, as well as the YM amplitudes those receive contributions from both <i>F</i> <sup>3</sup> and <i>F</i> <sup>4</sup> operators, for arbitrary number of external particles. All results are represented as universal expansions to appropriate basis. We also conjecture a compact general formula for tree YM amplitudes with higher mass dimension, which allows us to generate them from ordinary YM amplitudes, and discuss the consistent factorizations of the conjectured formula.</p>

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Towards tree Yang-Mills and Yang-Mills-scalar amplitudes with higher-derivative interactions

  • Kang Zhou,
  • Chang Hu

摘要

In our recent works, a new approach for constructing tree amplitudes, based on exploiting soft behaviors, was proposed. In this paper, we extend this approach to effective theories for gluons which incorporate higher-derivative interactions. By applying our method, we construct tree Yang-Mills (YM) and Yang-Mills-scalar (YMS) amplitudes with the single insertion of F 3 local operator, as well as the YM amplitudes those receive contributions from both F 3 and F 4 operators, for arbitrary number of external particles. All results are represented as universal expansions to appropriate basis. We also conjecture a compact general formula for tree YM amplitudes with higher mass dimension, which allows us to generate them from ordinary YM amplitudes, and discuss the consistent factorizations of the conjectured formula.