No Cover Image

Journal article 551 views

Complex factorization and recursion for one-loop amplitudes / Sam Alston, David Dunbar, Warren Perkins

Physical Review D, Volume: 86, Issue: 8, Start page: 085022

Swansea University Authors: David Dunbar, Warren Perkins

Full text not available from this repository: check for access using links below.

Abstract

We consider the factorisation of one-loop amplitudes at complex kinematic points. By determining the terms that are absent for real kinematics, we can construct a recursive ansatz for the purely rational pieces of one-loop amplitudes in massless theories. We illustrate this method by verifying the B...

Full description

Published in: Physical Review D
ISSN: 1550-7998 1550-2368
Published: 2012
Online Access: Check full text

URI: https://cronfa.swan.ac.uk/Record/cronfa13423
Tags: Add Tag
No Tags, Be the first to tag this record!
first_indexed 2013-07-23T12:10:12Z
last_indexed 2018-02-09T04:44:09Z
id cronfa13423
recordtype SURis
fullrecord <?xml version="1.0"?><rfc1807><datestamp>2015-07-13T15:55:56.4816473</datestamp><bib-version>v2</bib-version><id>13423</id><entry>2012-12-03</entry><title>Complex factorization and recursion for one-loop amplitudes</title><swanseaauthors><author><sid>b1c3d2c841af9c37f7deba55f8b3bd0c</sid><ORCID>0000-0003-2433-1675</ORCID><firstname>David</firstname><surname>Dunbar</surname><name>David Dunbar</name><active>true</active><ethesisStudent>false</ethesisStudent></author><author><sid>4bcbb4b448d52d3d7290d5dcd804027e</sid><ORCID>0000-0002-4434-8178</ORCID><firstname>Warren</firstname><surname>Perkins</surname><name>Warren Perkins</name><active>true</active><ethesisStudent>false</ethesisStudent></author></swanseaauthors><date>2012-12-03</date><deptcode>SPH</deptcode><abstract>We consider the factorisation of one-loop amplitudes at complex kinematic points. By determining the terms that are absent for real kinematics, we can construct a recursive ansatz for the purely rational pieces of one-loop amplitudes in massless theories. We illustrate this method by verifying the Bern et.al. n-point ansatze for the single-minus one-loop amplitudes in Yang-Mills theory and by constructing the scalar contribution to the one-loop five graviton MHV scattering amplitude.</abstract><type>Journal Article</type><journal>Physical Review D</journal><volume>86</volume><journalNumber>8</journalNumber><paginationStart>085022</paginationStart><publisher/><issnPrint>1550-7998</issnPrint><issnElectronic>1550-2368</issnElectronic><keywords/><publishedDay>31</publishedDay><publishedMonth>12</publishedMonth><publishedYear>2012</publishedYear><publishedDate>2012-12-31</publishedDate><doi>10.1103/PhysRevD.86.085022</doi><url/><notes/><college>COLLEGE NANME</college><department>Physics</department><CollegeCode>COLLEGE CODE</CollegeCode><DepartmentCode>SPH</DepartmentCode><institution>Swansea University</institution><apcterm/><lastEdited>2015-07-13T15:55:56.4816473</lastEdited><Created>2012-12-03T13:53:47.2014810</Created><path><level id="1">College of Science</level><level id="2">Physics</level></path><authors><author><firstname>Sam</firstname><surname>Alston</surname><order>1</order></author><author><firstname>David</firstname><surname>Dunbar</surname><orcid>0000-0003-2433-1675</orcid><order>2</order></author><author><firstname>Warren</firstname><surname>Perkins</surname><orcid>0000-0002-4434-8178</orcid><order>3</order></author></authors><documents/><OutputDurs/></rfc1807>
spelling 2015-07-13T15:55:56.4816473 v2 13423 2012-12-03 Complex factorization and recursion for one-loop amplitudes b1c3d2c841af9c37f7deba55f8b3bd0c 0000-0003-2433-1675 David Dunbar David Dunbar true false 4bcbb4b448d52d3d7290d5dcd804027e 0000-0002-4434-8178 Warren Perkins Warren Perkins true false 2012-12-03 SPH We consider the factorisation of one-loop amplitudes at complex kinematic points. By determining the terms that are absent for real kinematics, we can construct a recursive ansatz for the purely rational pieces of one-loop amplitudes in massless theories. We illustrate this method by verifying the Bern et.al. n-point ansatze for the single-minus one-loop amplitudes in Yang-Mills theory and by constructing the scalar contribution to the one-loop five graviton MHV scattering amplitude. Journal Article Physical Review D 86 8 085022 1550-7998 1550-2368 31 12 2012 2012-12-31 10.1103/PhysRevD.86.085022 COLLEGE NANME Physics COLLEGE CODE SPH Swansea University 2015-07-13T15:55:56.4816473 2012-12-03T13:53:47.2014810 College of Science Physics Sam Alston 1 David Dunbar 0000-0003-2433-1675 2 Warren Perkins 0000-0002-4434-8178 3
title Complex factorization and recursion for one-loop amplitudes
spellingShingle Complex factorization and recursion for one-loop amplitudes
David, Dunbar
Warren, Perkins
title_short Complex factorization and recursion for one-loop amplitudes
title_full Complex factorization and recursion for one-loop amplitudes
title_fullStr Complex factorization and recursion for one-loop amplitudes
title_full_unstemmed Complex factorization and recursion for one-loop amplitudes
title_sort Complex factorization and recursion for one-loop amplitudes
author_id_str_mv b1c3d2c841af9c37f7deba55f8b3bd0c
4bcbb4b448d52d3d7290d5dcd804027e
author_id_fullname_str_mv b1c3d2c841af9c37f7deba55f8b3bd0c_***_David, Dunbar
4bcbb4b448d52d3d7290d5dcd804027e_***_Warren, Perkins
author David, Dunbar
Warren, Perkins
author2 Sam Alston
David Dunbar
Warren Perkins
format Journal article
container_title Physical Review D
container_volume 86
container_issue 8
container_start_page 085022
publishDate 2012
institution Swansea University
issn 1550-7998
1550-2368
doi_str_mv 10.1103/PhysRevD.86.085022
college_str College of Science
hierarchytype
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 We consider the factorisation of one-loop amplitudes at complex kinematic points. By determining the terms that are absent for real kinematics, we can construct a recursive ansatz for the purely rational pieces of one-loop amplitudes in massless theories. We illustrate this method by verifying the Bern et.al. n-point ansatze for the single-minus one-loop amplitudes in Yang-Mills theory and by constructing the scalar contribution to the one-loop five graviton MHV scattering amplitude.
published_date 2012-12-31T03:25:00Z
_version_ 1711929400373542912
score 10.823389