Two-loop gravity amplitudes from four dimensional unitarity

Dunbar, David; Jehu, Guy R.; Perkins, Warren

doi:10.1103/PhysRevD.95.046012

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Two-loop gravity amplitudes from four dimensional unitarity

David Dunbar

, Guy R. Jehu, Warren Perkins

Physical Review D, Volume: 95, Issue: 4

Swansea University Authors: David Dunbar , Warren Perkins

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DOI (Published version): 10.1103/PhysRevD.95.046012

Abstract

We compute the polylogarithmic parts of the two-loop four and five-graviton amplitudes where the external helicities are positive and express these in a simple compact analytic form. We use these to extract the $\ln(\mu^2)$ terms from both the four and five-point amplitudes and show that these match...

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Published in:	Physical Review D
ISSN:	2470-0010 2470-0029
Published:	2017
Online Access:	Check full text
URI:	https://cronfa.swan.ac.uk/Record/cronfa31619
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first_indexed	2017-02-23T04:56:49Z
last_indexed	2020-07-16T18:48:13Z
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spelling	2020-07-16T14:13:34.0038666 v2 31619 2017-01-11 Two-loop gravity amplitudes from four dimensional unitarity b1c3d2c841af9c37f7deba55f8b3bd0c 0000-0003-2433-1675 David Dunbar David Dunbar true false 4bcbb4b448d52d3d7290d5dcd804027e 0000-0002-4434-8178 Warren Perkins Warren Perkins true false 2017-01-11 SPH We compute the polylogarithmic parts of the two-loop four and five-graviton amplitudes where the external helicities are positive and express these in a simple compact analytic form. We use these to extract the $\ln(\mu^2)$ terms from both the four and five-point amplitudes and show that these match the same $R^3$ counterterm. Journal Article Physical Review D 95 4 2470-0010 2470-0029 22 2 2017 2017-02-22 10.1103/PhysRevD.95.046012 COLLEGE NANME Physics COLLEGE CODE SPH Swansea University 2020-07-16T14:13:34.0038666 2017-01-11T13:09:10.0631381 Faculty of Science and Engineering School of Biosciences, Geography and Physics - Physics David Dunbar 0000-0003-2433-1675 1 Guy R. Jehu 2 Warren Perkins 0000-0002-4434-8178 3 0031619-06022017180920.pdf DJPeps_v2.pdf 2017-02-06T18:09:20.3900000 Output 273373 application/pdf Accepted Manuscript true 2017-02-06T00:00:00.0000000 true
title	Two-loop gravity amplitudes from four dimensional unitarity
spellingShingle	Two-loop gravity amplitudes from four dimensional unitarity David Dunbar Warren Perkins
title_short	Two-loop gravity amplitudes from four dimensional unitarity
title_full	Two-loop gravity amplitudes from four dimensional unitarity
title_fullStr	Two-loop gravity amplitudes from four dimensional unitarity
title_full_unstemmed	Two-loop gravity amplitudes from four dimensional unitarity
title_sort	Two-loop gravity amplitudes from four dimensional unitarity
author_id_str_mv	b1c3d2c841af9c37f7deba55f8b3bd0c 4bcbb4b448d52d3d7290d5dcd804027e
author_id_fullname_str_mv	b1c3d2c841af9c37f7deba55f8b3bd0c_*_David Dunbar 4bcbb4b448d52d3d7290d5dcd804027e_*_Warren Perkins
author	David Dunbar Warren Perkins
author2	David Dunbar Guy R. Jehu Warren Perkins
format	Journal article
container_title	Physical Review D
container_volume	95
container_issue	4
publishDate	2017
institution	Swansea University
issn	2470-0010 2470-0029
doi_str_mv	10.1103/PhysRevD.95.046012
college_str	Faculty of Science and Engineering
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hierarchy_top_title	Faculty of Science and Engineering
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department_str	School of Biosciences, Geography and Physics - Physics{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Biosciences, Geography and Physics - Physics
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description	We compute the polylogarithmic parts of the two-loop four and five-graviton amplitudes where the external helicities are positive and express these in a simple compact analytic form. We use these to extract the $\ln(\mu^2)$ terms from both the four and five-point amplitudes and show that these match the same $R^3$ counterterm.
published_date	2017-02-22T03:38:38Z
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score	11.036706

Two-loop gravity amplitudes from four dimensional unitarity

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