Skip to main content

Research Repository

Advanced Search

Boundary scattering in the ϕ4 model

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

Boundary scattering in the ϕ4 model Thumbnail


Aliaksei Halavanau

James Mercer

Tomasz Romanczukiewicz

Yasha Shnir


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.


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.

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
Publisher Scuola Internazionale Superiore di Studi Avanzati (SISSA)
Peer Reviewed Peer Reviewed
Volume 2017
Issue 5
Article Number 107
Related Public URLs


Accepted Journal Article (9.4 Mb)

Copyright Statement
This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited.

You might also like

Downloadable Citations