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Two-loop gravity amplitudes from four dimensional unitarity

David Dunbar Orcid Logo, Guy R. Jehu, Warren Perkins Orcid Logo

Physical Review D, Volume: 95, Issue: 4

Swansea University Authors: David Dunbar Orcid Logo, Warren Perkins Orcid Logo

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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
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URI: https://cronfa.swan.ac.uk/Record/cronfa31619
first_indexed 2017-02-23T04:56:49Z
last_indexed 2020-07-16T18:48:13Z
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recordtype SURis
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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 BGPS 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 Biosciences Geography and Physics School COLLEGE CODE BGPS 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
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Biosciences, Geography and Physics - Physics{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Biosciences, Geography and Physics - Physics
document_store_str 1
active_str 0
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 2017-02-22T04:01:48Z
_version_ 1851092430300905472
score 11.089407

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