### 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:

• PDF | Accepted Manuscript

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 2470-0010 2470-0029 2017 https://cronfa.swan.ac.uk/Record/cronfa31619 No Tags, Be the first to tag this record!
first_indexed 2017-02-23T04:56:49Z 2020-07-16T18:48:13Z cronfa31619 SURis 2020-07-16T14:13:34.0038666v2316192017-01-11Two-loop gravity amplitudes from four dimensional unitarityb1c3d2c841af9c37f7deba55f8b3bd0c0000-0003-2433-1675DavidDunbarDavid Dunbartruefalse4bcbb4b448d52d3d7290d5dcd804027e0000-0002-4434-8178WarrenPerkinsWarren Perkinstruefalse2017-01-11SPHWe 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 ArticlePhysical Review D9542470-00102470-002922220172017-02-2210.1103/PhysRevD.95.046012COLLEGE NANMEPhysicsCOLLEGE CODESPHSwansea University2020-07-16T14:13:34.00386662017-01-11T13:09:10.0631381College of SciencePhysicsDavidDunbar0000-0003-2433-16751Guy R.Jehu2WarrenPerkins0000-0002-4434-817830031619-06022017180920.pdfDJPeps_v2.pdf2017-02-06T18:09:20.3900000Output273373application/pdfAccepted Manuscripttrue2017-02-06T00:00:00.0000000true 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 College of Science 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 Two-loop gravity amplitudes from four dimensional unitarity Two-loop gravity amplitudes from four dimensional unitarity David, Dunbar Warren, Perkins Two-loop gravity amplitudes from four dimensional unitarity Two-loop gravity amplitudes from four dimensional unitarity Two-loop gravity amplitudes from four dimensional unitarity Two-loop gravity amplitudes from four dimensional unitarity Two-loop gravity amplitudes from four dimensional unitarity b1c3d2c841af9c37f7deba55f8b3bd0c 4bcbb4b448d52d3d7290d5dcd804027e b1c3d2c841af9c37f7deba55f8b3bd0c_***_David, Dunbar 4bcbb4b448d52d3d7290d5dcd804027e_***_Warren, Perkins David, Dunbar Warren, Perkins David Dunbar Guy R. Jehu Warren Perkins Journal article Physical Review D 95 4 2017 Swansea University 2470-0010 2470-0029 10.1103/PhysRevD.95.046012 College of Science collegeofscience College of Science collegeofscience College of Science Physics{{{_:::_}}}College of Science{{{_:::_}}}Physics 1 0 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. 2017-02-22T03:46:06Z 1718548081079746560 10.845646