Unitarity of Minkowski nonlocal theories made explicit
| dc.contributor.author | Koshelev, Alexey S. | |
| dc.contributor.author | Tokareva, Anna | |
| dc.date.accessioned | 2021-07-26T11:42:21Z | |
| dc.date.available | 2021-07-26T11:42:21Z | |
| dc.date.issued | 2021 | |
| dc.identifier.citation | Koshelev, A. S., & Tokareva, A. (2021). Unitarity of Minkowski nonlocal theories made explicit. <i>Physical Review D</i>, <i>104</i>(2), Article 025016. <a href="https://doi.org/10.1103/physrevd.104.025016" target="_blank">https://doi.org/10.1103/physrevd.104.025016</a> | |
| dc.identifier.other | CONVID_99125824 | |
| dc.identifier.uri | https://jyx.jyu.fi/handle/123456789/77204 | |
| dc.description.abstract | In this work we explicitly show that the perturbative unitarity of analytic infinite derivative scalar field theories can be achieved using a modified prescription for computing scattering amplitudes. The crux of the new prescription is the analytic continuation of a result obtained in the Euclidean signature to the Minkowski external momenta. We intensively elaborate an example of a nonlocal ϕ4 model for various infinite derivative operators. General UV properties of amplitudes in nonlocal theories are discussed. | en |
| dc.format.mimetype | application/pdf | |
| dc.language.iso | eng | |
| dc.publisher | American Physical Society (APS) | |
| dc.relation.ispartofseries | Physical Review D | |
| dc.rights | CC BY 4.0 | |
| dc.title | Unitarity of Minkowski nonlocal theories made explicit | |
| dc.type | article | |
| dc.identifier.urn | URN:NBN:fi:jyu-202107264377 | |
| dc.contributor.laitos | Fysiikan laitos | fi |
| dc.contributor.laitos | Department of Physics | en |
| dc.type.uri | http://purl.org/eprint/type/JournalArticle | |
| dc.type.coar | http://purl.org/coar/resource_type/c_2df8fbb1 | |
| dc.description.reviewstatus | peerReviewed | |
| dc.relation.issn | 2470-0010 | |
| dc.relation.numberinseries | 2 | |
| dc.relation.volume | 104 | |
| dc.type.version | publishedVersion | |
| dc.rights.copyright | © 2021 the Authors | |
| dc.rights.accesslevel | openAccess | fi |
| dc.relation.grantnumber | 318319 | |
| dc.format.content | fulltext | |
| dc.rights.url | https://creativecommons.org/licenses/by/4.0/ | |
| dc.relation.doi | 10.1103/physrevd.104.025016 | |
| dc.relation.funder | Research Council of Finland | en |
| dc.relation.funder | Suomen Akatemia | fi |
| jyx.fundingprogram | Academy Project, AoF | en |
| jyx.fundingprogram | Akatemiahanke, SA | fi |
| jyx.fundinginformation | The authors would like to thank I. Aref’eva and M. Shaposhnikov for comments and questions on the manuscript. A. K. is supported by FCT Portugal investigator Project No. IF/01607/2015. A. T. is supported by the Academy of Finland Grant No. 318319. The part of the work performed by A. T. related to the numeric computations of the amplitudes is supported by the Russian Science Foundation Grant No. 19-12-00393. | |
| dc.type.okm | A1 |
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