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Constructing gravity amplitudes from real soft and collinear factorization / David Dunbar, James H Ettle, Warren Perkins

Physical Review D, Volume: 86, Issue: 2, Start page: 026009

Swansea University Authors: David Dunbar, Warren Perkins

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Abstract

Soft and collinear factorisations can be used to construct expressions for amplitudes in theoriesof gravity. We generalise the “half-soft” functions used previously to “soft-lifting” functions anduse these to generate tree and one-loop amplitudes. In particular we construct expressions forMHV tree a...

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Published in: Physical Review D
ISSN: 1550-7998 1550-2368
Published: 2012
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URI: https://cronfa.swan.ac.uk/Record/cronfa8451
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spelling 2015-07-13T16:01:11.5372277 v2 8451 2012-03-02 Constructing gravity amplitudes from real soft and collinear factorization b1c3d2c841af9c37f7deba55f8b3bd0c 0000-0003-2433-1675 David Dunbar David Dunbar true false 4bcbb4b448d52d3d7290d5dcd804027e 0000-0002-4434-8178 Warren Perkins Warren Perkins true false 2012-03-02 SPH Soft and collinear factorisations can be used to construct expressions for amplitudes in theoriesof gravity. We generalise the “half-soft” functions used previously to “soft-lifting” functions anduse these to generate tree and one-loop amplitudes. In particular we construct expressions forMHV tree amplitudes and the rational terms in one-loop amplitudes in the specific context ofN = 4 supergravity. To completely determine the rational terms collinear factorisation must alsobe used. The rational terms for N = 4 have a remarkable diagrammatic interpretation as arisingfrom algebraic link diagrams. Journal Article Physical Review D 86 2 026009 1550-7998 1550-2368 31 12 2012 2012-12-31 10.1103/PhysRevD.86.026009 COLLEGE NANME Physics COLLEGE CODE SPH Swansea University 2015-07-13T16:01:11.5372277 2012-03-02T09:56:31.9100000 College of Science Physics David Dunbar 0000-0003-2433-1675 1 James H Ettle 2 Warren Perkins 0000-0002-4434-8178 3
title Constructing gravity amplitudes from real soft and collinear factorization
spellingShingle Constructing gravity amplitudes from real soft and collinear factorization
David, Dunbar
Warren, Perkins
title_short Constructing gravity amplitudes from real soft and collinear factorization
title_full Constructing gravity amplitudes from real soft and collinear factorization
title_fullStr Constructing gravity amplitudes from real soft and collinear factorization
title_full_unstemmed Constructing gravity amplitudes from real soft and collinear factorization
title_sort Constructing gravity amplitudes from real soft and collinear factorization
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
James H Ettle
Warren Perkins
format Journal article
container_title Physical Review D
container_volume 86
container_issue 2
container_start_page 026009
publishDate 2012
institution Swansea University
issn 1550-7998
1550-2368
doi_str_mv 10.1103/PhysRevD.86.026009
college_str College of Science
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hierarchy_top_id collegeofscience
hierarchy_top_title College of Science
hierarchy_parent_id collegeofscience
hierarchy_parent_title College of Science
department_str Physics{{{_:::_}}}College of Science{{{_:::_}}}Physics
document_store_str 0
active_str 0
description Soft and collinear factorisations can be used to construct expressions for amplitudes in theoriesof gravity. We generalise the “half-soft” functions used previously to “soft-lifting” functions anduse these to generate tree and one-loop amplitudes. In particular we construct expressions forMHV tree amplitudes and the rational terms in one-loop amplitudes in the specific context ofN = 4 supergravity. To completely determine the rational terms collinear factorisation must alsobe used. The rational terms for N = 4 have a remarkable diagrammatic interpretation as arisingfrom algebraic link diagrams.
published_date 2012-12-31T03:21:02Z
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