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Infrared photons and asymptotic symmetries

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 نشر من قبل Pujian Mao
 تاريخ النشر 2021
  مجال البحث
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S-matrix elements exhibit universal factorization when multiple infrared photons are emitted in scattering processes. We explicitly show that the leading soft factorization of tree-level amplitudes with the emission of any number of soft photons can be interpreted as the Ward identity of the asymptotic symmetry of gauge theory.

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