Show simple item record

dc.contributor.author
Moch, Sven-Olaf
dc.contributor.author
Ruijl, Ben
dc.contributor.author
Ueda, Takahiro
dc.contributor.author
Vermaseren, Jos
dc.contributor.author
Vogt, Andreas
dc.date.accessioned
2018-06-25T15:53:53Z
dc.date.available
2018-06-22T13:58:20Z
dc.date.available
2018-06-25T15:53:53Z
dc.date.issued
2018-07
dc.identifier.issn
0370-2693
dc.identifier.issn
0031-9163
dc.identifier.issn
1873-2445
dc.identifier.other
10.1016/j.physletb.2018.06.017
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/271734
dc.identifier.doi
10.3929/ethz-b-000271734
dc.description.abstract
We have computed the contributions of the quartic Casimir invariants to the four-loop anomalous dimensions of twist-2 spin-N operators at N≤16N≤16. The results provide new information on the structure of the next-to-next-to-next-to-leading order (N3LO) splitting functions View the MathML sourcePik(3)(x) for the evolution of parton distributions, and facilitate approximate expressions which include the quartic-Casimir contributions to the (light-like) gluon cusp anomalous dimension. These quantities turn out to be closely related, by a generalization of the lower-order ‘Casimir scaling’, to the corresponding quark results. Using these findings, we present an approximate result for the four-loop gluon cusp anomalous dimension in QCD which is sufficient for phenomenological applications.
en_US
dc.format
application/pdf
en_US
dc.language.iso
en
en_US
dc.publisher
Elsevier
en_US
dc.rights.uri
http://creativecommons.org/licenses/by/4.0/
dc.title
On quartic colour factors in splitting functions and the gluon cusp anomalous dimension
en_US
dc.type
Journal Article
dc.rights.license
Creative Commons Attribution 4.0 International
dc.date.published
2018-06-14
ethz.journal.title
Physics Letters B
ethz.journal.volume
782
en_US
ethz.journal.abbreviated
Phys. Lett. B
ethz.pages.start
627
en_US
ethz.pages.end
632
en_US
ethz.version.deposit
publishedVersion
en_US
ethz.identifier.wos
ethz.identifier.scopus
ethz.publication.place
Amsterdam
en_US
ethz.publication.status
published
en_US
ethz.date.deposited
2018-06-22T13:58:21Z
ethz.source
SCOPUS
ethz.eth
yes
en_US
ethz.availability
Open access
en_US
ethz.rosetta.installDate
2018-06-25T15:53:57Z
ethz.rosetta.lastUpdated
2020-02-15T13:43:16Z
ethz.rosetta.versionExported
true
ethz.COinS
ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.atitle=On%20quartic%20colour%20factors%20in%20splitting%20functions%20and%20the%20gluon%20cusp%20anomalous%20dimension&rft.jtitle=Physics%20Letters%20B&rft.date=2018-07&rft.volume=782&rft.spage=627&rft.epage=632&rft.issn=0370-2693&0031-9163&1873-2445&rft.au=Moch,%20Sven-Olaf&Ruijl,%20Ben&Ueda,%20Takahiro&Vermaseren,%20Jos&Vogt,%20Andreas&rft.genre=article&rft_id=info:doi/10.1016/j.physletb.2018.06.017&
 Search print copy at ETH Library

Files in this item

Thumbnail

Publication type

Show simple item record