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dc.contributor.author
Cotogno, Sabrina
dc.contributor.author
Lorcé, Cédric
dc.contributor.author
Lowdon, Peter
dc.contributor.author
Morales, Manuel
dc.date.accessioned
2020-04-09T10:09:45Z
dc.date.available
2020-04-09T02:49:22Z
dc.date.available
2020-04-09T10:09:45Z
dc.date.issued
2020-03-01
dc.identifier.issn
1550-7998
dc.identifier.issn
0556-2821
dc.identifier.issn
1550-2368
dc.identifier.other
10.1103/PhysRevD.101.056016
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/409073
dc.identifier.doi
10.3929/ethz-b-000409073
dc.description.abstract
We study the structure of scalar, vector, and tensor currents for on shell massive particles of any spin. When considering higher values for the spin of the particle, the number of form factors (FFs) involved in the decomposition of the matrix elements associated with these local currents increases. We identify all the fundamental structures that give rise to the independent FFs, systematically for any spin value. These structures can be conveniently organized using an expansion in covariant multipoles, built solely from the Lorentz generators. This approach allows one to uniquely identify the terms which are universal and those that arise because of spin. We derive counting rules which relate the number of FFs to the total spin j of the state, showing explicitly that these rules match all the well-known cases up to spin 2.
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
Covariant multipole expansion of local currents for massive states of any spin
en_US
dc.type
Journal Article
dc.rights.license
Creative Commons Attribution 4.0 International
dc.date.published
2020-03-24
ethz.journal.title
Physical Review D
ethz.journal.volume
101
en_US
ethz.journal.issue
5
en_US
ethz.journal.abbreviated
Phys. rev. D.
ethz.pages.start
056016
en_US
ethz.size
15 p.
en_US
ethz.version.deposit
publishedVersion
en_US
ethz.identifier.wos
ethz.identifier.scopus
ethz.publication.place
Ridge, NY
en_US
ethz.publication.status
published
en_US
ethz.date.deposited
2020-04-09T02:49:27Z
ethz.source
WOS
ethz.eth
yes
en_US
ethz.availability
Open access
en_US
ethz.rosetta.installDate
2020-04-09T10:11:11Z
ethz.rosetta.lastUpdated
2020-04-09T10:11:11Z
ethz.rosetta.exportRequired
true
ethz.rosetta.versionExported
true
ethz.COinS
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