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dc.contributor.authorIlderton, Aen
dc.contributor.authorKing, Ben
dc.contributor.authorMacleod, AJen
dc.date.accessioned2019-10-08T09:29:45Z
dc.date.issued2019-10-07en
dc.identifier.issn1550-2368en
dc.identifier.urihttp://hdl.handle.net/10026.1/14970
dc.description15 pages, 6 pdf figuresen
dc.description.abstract

We consider the absorption of probe photons by electrons in the presence of an intense, pulsed, background field. Our analysis reveals an interplay between regularisation and gauge invariance which distinguishes absorption from its crossing-symmetric processes, as well as a physical interpretation of absorption in terms of degenerate processes in the weak field limit. In the strong field limit we develop a locally constant field approximation (LCFA) for absorption which also exhibits new features. We benchmark the LCFA against exact analytical calculations and explore its regime of validity. Pulse shape effects are also investigated, as well as infra-red and collinear limits of the absorption process.

en
dc.language.isoenen
dc.publisherAmerican Physical Societyen
dc.subjecthep-phen
dc.subjecthep-phen
dc.subjectphysics.plasm-phen
dc.titleAbsorption cross section in an intense plane wave backgrounden
dc.typeJournal Article
plymouth.author-urlhttp://arxiv.org/abs/1907.12835v1en
plymouth.journalPhysical Review D: Particles, Fields, Gravitation and Cosmologyen
dc.identifier.doi10.1103/PhysRevD.100.076002en
plymouth.organisational-group/Plymouth
plymouth.organisational-group/Plymouth/00 Groups by role
plymouth.organisational-group/Plymouth/00 Groups by role/Academics
plymouth.organisational-group/Plymouth/Faculty of Science and Engineering
plymouth.organisational-group/Plymouth/Faculty of Science and Engineering/School of Engineering, Computing and Mathematics
plymouth.organisational-group/Plymouth/REF 2021 Researchers by UoA
plymouth.organisational-group/Plymouth/REF 2021 Researchers by UoA/UoA10 Mathematical Sciences
dcterms.dateAccepted2019-09-17en
dc.rights.embargodate9999-12-31en
dc.rights.embargoperiodNot knownen
rioxxterms.versionofrecord10.1103/PhysRevD.100.076002en
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserveden
rioxxterms.licenseref.startdate2019-10-07en
rioxxterms.typeJournal Article/Reviewen


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