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dc.contributor.author
Capatti, Zeno
dc.contributor.author
Hirschi, Valentin
dc.contributor.author
Kermanschah, Dario
dc.contributor.author
Ruijl, Ben
dc.date.accessioned
2019-10-28T08:30:58Z
dc.date.available
2019-10-25T04:47:40Z
dc.date.available
2019-10-28T08:30:58Z
dc.date.issued
2019-10-11
dc.identifier.issn
0031-9007
dc.identifier.issn
1079-7114
dc.identifier.other
10.1103/PhysRevLett.123.151602
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/372723
dc.identifier.doi
10.3929/ethz-b-000372723
dc.description.abstract
Loop-tree duality (LTD) offers a promising avenue to numerically integrate multiloop integrals directly in momentum space. It is well established at one loop, but there have been only sparse numerical results at two loops. We provide a formal derivation for a novel multiloop LTD expression and study its threshold singularity structure. We apply our findings numerically to a diverse set of up to four-loop finite topologies with kinematics for which no contour deformation is needed. We also lay down the ground work for constructing such a deformation. Our results serve as an important stepping stone towards a generalized and efficient numerical implementation of LTD, which is applicable to the computation of virtual corrections.
en_US
dc.format
application/pdf
en_US
dc.language.iso
en
en_US
dc.publisher
American Physical Society
en_US
dc.rights.uri
http://creativecommons.org/licenses/by/4.0/
dc.title
Loop-Tree Duality for Multiloop Numerical Integration
en_US
dc.type
Journal Article
dc.rights.license
Creative Commons Attribution 4.0 International
ethz.journal.title
Physical Review Letters
ethz.journal.volume
123
en_US
ethz.journal.issue
15
en_US
ethz.journal.abbreviated
Phys. rev. lett.
ethz.pages.start
151602
en_US
ethz.size
6 p.
en_US
ethz.version.deposit
publishedVersion
en_US
ethz.grant
Automatization of perturbative QCD at very high orders
en_US
ethz.grant
Singlular structure of two-loop amplitudes and their numerical evaluation
en_US
ethz.identifier.wos
ethz.identifier.scopus
ethz.publication.place
New York, NY
en_US
ethz.publication.status
published
en_US
ethz.grant.agreementno
694712
ethz.grant.agreementno
179016
ethz.grant.fundername
EC
ethz.grant.fundername
SNF
ethz.grant.funderDoi
10.13039/501100000780
ethz.grant.funderDoi
10.13039/501100001711
ethz.grant.program
H2020
ethz.grant.program
Projektförderung in Mathematik, Natur- und Ingenieurwissenschaften (Abteilung II)
ethz.date.deposited
2019-10-25T04:47:46Z
ethz.source
WOS
ethz.eth
yes
en_US
ethz.availability
Open access
en_US
ethz.rosetta.installDate
2019-10-28T08:31:16Z
ethz.rosetta.lastUpdated
2021-02-15T06:25:41Z
ethz.rosetta.exportRequired
true
ethz.rosetta.versionExported
true
ethz.COinS
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