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Double soft limit of the graviton amplitude from the Cachazo-He-Yuan formalism

Double soft limit of the graviton amplitude from the Cachazo-He-Yuan formalism We present a complete analysis for double soft limit of graviton scattering amplitude using the formalism proposed by Cachazo, He, and Yuan. Our results agree with that obtained via Britto–Cachazo–Feng–Witten (BCFW) recursion relations in [T. Klose, T. McLoughlin, D. Nandan, J. Plefka, and G. Travaglini, Double-soft limits of gluons and gravitons, J. High Energy Phys. 07 (2015) 135.JHEPFG1029-847910.1007/JHEP07(2015)135]. In addition we find precise relations between degenerate and nondegenerate solutions of scattering equations with local and nonlocal terms in the soft factor. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Physical Review D American Physical Society (APS)

Double soft limit of the graviton amplitude from the Cachazo-He-Yuan formalism

Saha, Arnab Priya
Physical Review D , Volume 96 (4) – Aug 15, 2017
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Double soft limit of the graviton amplitude from the Cachazo-He-Yuan formalism

Saha, Arnab Priya
Physical Review D , Volume 96 (4) – Aug 15, 2017

Abstract

We present a complete analysis for double soft limit of graviton scattering amplitude using the formalism proposed by Cachazo, He, and Yuan. Our results agree with that obtained via Britto–Cachazo–Feng–Witten (BCFW) recursion relations in [T. Klose, T. McLoughlin, D. Nandan, J. Plefka, and G. Travaglini, Double-soft limits of gluons and gravitons, J. High Energy Phys. 07 (2015) 135.JHEPFG1029-847910.1007/JHEP07(2015)135]. In addition we find precise relations between degenerate and nondegenerate solutions of scattering equations with local and nonlocal terms in the soft factor.

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Publisher
American Physical Society (APS)
Copyright
Copyright © © 2017 American Physical Society
ISSN
1550-7998
eISSN
1550-2368
DOI
10.1103/PhysRevD.96.045002
Publisher site
See Article on Publisher Site

Abstract

We present a complete analysis for double soft limit of graviton scattering amplitude using the formalism proposed by Cachazo, He, and Yuan. Our results agree with that obtained via Britto–Cachazo–Feng–Witten (BCFW) recursion relations in [T. Klose, T. McLoughlin, D. Nandan, J. Plefka, and G. Travaglini, Double-soft limits of gluons and gravitons, J. High Energy Phys. 07 (2015) 135.JHEPFG1029-847910.1007/JHEP07(2015)135]. In addition we find precise relations between degenerate and nondegenerate solutions of scattering equations with local and nonlocal terms in the soft factor.

Journal

Physical Review D – American Physical Society (APS)

Published: Aug 15, 2017

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