Boundary scattering in the ϕ4 model

Dorey, Patrick; Halavanau, Aliaksei; Mercer, James; Romanczukiewicz, Tomasz; Shnir, Yasha

Abstract

We study boundary scattering in the ϕ4 model on a half-line with a oneparameter family of Neumann-type boundary conditions. A rich variety of phenomena is observed, which extends previously-studied behaviour on the full line to include regimes of near-elastic scattering, the restoration of a missing scattering window, and the creation of a kink or oscillon through the collision-induced decay of a metastable boundary state. We also study the decay of the vibrational boundary mode, and explore different scenarios for its relaxation and for the creation of kinks.

Citation

Dorey, P., Halavanau, A., Mercer, J., Romanczukiewicz, T., & Shnir, Y. (2017). Boundary scattering in the ϕ4 model. Journal of High Energy Physics, 2017(5), Article 107. https://doi.org/10.1007/jhep05%282017%29107

• Journal Article Type: Article
• Acceptance Date: Mar 13, 2017
• Online Publication Date: May 19, 2017
• Publication Date: May 19, 2017
• Deposit Date: Apr 17, 2017
• Publicly Available Date: Apr 18, 2017
• Journal: Journal of High Energy Physics
• Print ISSN: 1126-6708
• Electronic ISSN: 1029-8479
• Publisher: Scuola Internazionale Superiore di Studi Avanzati (SISSA)
• Peer Reviewed: Peer Reviewed
• Volume: 2017
• Issue: 5
• Article Number: 107
• DOI: https://doi.org/10.1007/jhep05%282017%29107
• Public URL: https://durham-repository.worktribe.com/output/1359720
• Related Public URLs: https://arxiv.org/pdf/1508.02329.pdf