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  "authors": [
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      "raw_name": "Andreas Brandhuber", 
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          "value": "Centre for Research in String Theory, School of Physics and Astronomy, Queen Mary University of London, Mile End Road, London E1 4NS, United Kingdom"
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      "surname": "Brandhuber", 
      "given_names": "Andreas", 
      "full_name": "Brandhuber, Andreas"
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    {
      "raw_name": "Graham R. Brown", 
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          "country": "UK", 
          "value": "Centre for Research in String Theory, School of Physics and Astronomy, Queen Mary University of London, Mile End Road, London E1 4NS, United Kingdom"
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      "surname": "Brown", 
      "given_names": "Graham R.", 
      "full_name": "Brown, Graham R."
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    {
      "raw_name": "Joshua Gowdy", 
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          "country": "UK", 
          "value": "Centre for Research in String Theory, School of Physics and Astronomy, Queen Mary University of London, Mile End Road, London E1 4NS, United Kingdom"
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      ], 
      "surname": "Gowdy", 
      "given_names": "Joshua", 
      "full_name": "Gowdy, Joshua"
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    {
      "raw_name": "Bill Spence", 
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          "country": "UK", 
          "value": "Centre for Research in String Theory, School of Physics and Astronomy, Queen Mary University of London, Mile End Road, London E1 4NS, United Kingdom"
        }
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      "surname": "Spence", 
      "given_names": "Bill", 
      "full_name": "Spence, Bill"
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    {
      "raw_name": "Gabriele Travaglini", 
      "affiliations": [
        {
          "country": "UK", 
          "value": "Centre for Research in String Theory, School of Physics and Astronomy, Queen Mary University of London, Mile End Road, London E1 4NS, United Kingdom"
        }
      ], 
      "surname": "Travaglini", 
      "given_names": "Gabriele", 
      "full_name": "Travaglini, Gabriele"
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  ], 
  "titles": [
    {
      "source": "APS", 
      "title": "Celestial superamplitudes"
    }
  ], 
  "dois": [
    {
      "value": "10.1103/PhysRevD.104.045016"
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  "publication_info": [
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      "journal_volume": "104", 
      "journal_title": "Physical Review D", 
      "material": "article", 
      "journal_issue": "4", 
      "year": 2021
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    {
      "statement": "Published by the American Physical Society", 
      "year": "2021"
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  "record_creation_date": "2021-08-31T16:30:03.659047", 
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  "abstracts": [
    {
      "source": "APS", 
      "value": "We study celestial amplitudes in (super) Yang-Mills theory using a parametrization of the spinor helicity variables where their overall phase is not fixed by the little group action. In this approach the spin constraint <math><mi>h</mi><mo>\u2212</mo><mover><mi>h</mi><mo>\u00af</mo></mover><mo>=</mo><mi>J</mi></math> for celestial conformal primaries emerges naturally from a new Mellin transform, and the action of conformal transformations on celestial amplitudes is derived. Applying this approach to <math><mi>N</mi><mo>=</mo><mn>4</mn></math> super Yang-Mills, we show how the appropriate definition of on-shell superspace coordinates leads naturally to a formulation of chiral celestial superamplitudes and a representation of the generators of the four-dimensional superconformal algebra on the celestial sphere, which by construction annihilate all tree-level celestial superamplitudes."
    }
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