000012192 001__ 12192
000012192 005__ 20250218124806.0
000012192 02470 $$ahttps://doi.org/10.1103/PhysRevD.102.126020$$2doi
000012192 037__ $$aTEXTUAL
000012192 037__ $$bArticle
000012192 041__ $$aeng
000012192 245__ $$aLoop celestial amplitudes for gauge theory and gravity
000012192 269__ $$a2020-12-16
000012192 336__ $$aArticle
000012192 520__ $$aScattering amplitudes of massless particles in Minkowski space can be expressed in a conformal basis by Mellin transforming the momentum space amplitudes to correlation functions on the celestial sphere at null infinity. In this paper, we study celestial amplitudes of loop-level gluons and gravitons. We focus on the rational amplitudes that carry all-plus and single-minus external helicities. Because these amplitudes are finite, they provide a concrete example of celestial amplitudes of Yang- Mills and gravity theory beyond tree level. We give explicit examples of four- and five-point functions and comment on higher point amplitudes.
000012192 536__ $$oU.S. Department of Energy$$cDE-SC0020318
000012192 536__ $$oSimons Foundation$$c488651
000012192 540__ $$a<p>Published by the American Physical Society under the terms of the <a href="https://creativecommons.org/licenses/by/4.0/">Creative Commons Attribution 4.0 International</a> license.</p>
000012192 542__ $$fCC BY
000012192 690__ $$aPhysical Sciences Division
000012192 691__ $$aPhysics
000012192 7001_ $$1https://orcid.org/0000-0002-9223-0115$$2ORCID$$aAlbayrak, Soner$$uYale University
000012192 7001_ $$aChowdhury, Chandramouli$$uTata Institute of Fundamental Research
000012192 7001_ $$1https://orcid.org/0000-0001-9455-4183$$2ORCID$$aKharel, Savan$$uUniversity of Chicago
000012192 773__ $$tPhysical Review D
000012192 8564_ $$91942829e-485e-43f4-a061-20ab63b566f7$$ePublic$$s386376$$uhttps://knowledge.uchicago.edu/record/12192/files/PhysRevD.102.126020.pdf
000012192 908__ $$aI agree
000012192 909CO $$ooai:uchicago.tind.io:12192$$pGLOBAL_SET
000012192 983__ $$aArticle