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Subleading soft theorem for arbitrary number of external soft photons and gravitons

  • Regular Article - Theoretical Physics
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  • Published: 17 January 2019
  • Volume 2019, article number 153 (2019)
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Journal of High Energy Physics Aims and scope Submit manuscript
Subleading soft theorem for arbitrary number of external soft photons and gravitons
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  • Sayali Atul Bhatkar1 &
  • Biswajit Sahoo  ORCID: orcid.org/0000-0002-2650-76812 

  • 777 Accesses

  • 26 Citations

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A preprint version of the article is available at arXiv.

Abstract

We obtain the subleading soft theorem for a generic theory of quantum gravity, for arbitrary number of soft photons and gravitons and for arbitrary number of finite energy particles with arbitrary mass and spin when all the soft particles are soft in the same rate. This result is valid at tree level for spacetime dimensions equal to four and five and to all loop orders in spacetime dimensions greater than five. We verify that in classical limit, low energy photon and graviton radiation decouple from each other.

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  1. Indian Institute of Science Education and Research, Homi Bhabha Rd, Pashan, Pune, 411 008, India

    Sayali Atul Bhatkar

  2. Harish-Chandra Research Institute, HBNI, Chhatnag Road, Jhusi, Allahabad, 211019, India

    Biswajit Sahoo

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  1. Sayali Atul Bhatkar
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  2. Biswajit Sahoo
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Correspondence to Biswajit Sahoo.

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ArXiv ePrint: 1809.01675

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Bhatkar, S.A., Sahoo, B. Subleading soft theorem for arbitrary number of external soft photons and gravitons. J. High Energ. Phys. 2019, 153 (2019). https://doi.org/10.1007/JHEP01(2019)153

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  • Received: 13 October 2018

  • Accepted: 11 January 2019

  • Published: 17 January 2019

  • Version of record: 17 January 2019

  • DOI: https://doi.org/10.1007/JHEP01(2019)153

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Keywords

  • Scattering Amplitudes
  • Effective Field Theories
  • String Field Theory

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