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(Institut de Física d'Altes Energies) (Institut de Física d'Altes Energies) (Institut de Física d'Altes Energies)| Date: | 2023 |
| Abstract: | The sine-Gordon model in 3+1 dimensions is known to admit two oscillons of different energy and frequency but comparable lifetime. We show that the oscillon spectrum includes more spherically symmetric "states". We identify new high-amplitude oscillons by allowing the field profile to have a number of nodes. For each number of nodes, we find 2 states with a comparable lifetime to the nodeless ones. Oscillons with nodes are, however, unstable to non-spherical perturbations and so their lifetime is significantly reduced. Interestingly, these states are seen to fragment into a collection of nodeless oscillons. The heavy nodeless oscillon is quite remarkable: despite its energy, it is stable against fragmentation. Moreover, it has considerably small oscillation frequency, meaning that it can be interpreted as a rather relativistic bound state. |
| Grants: | European Commission 847648 Agencia Estatal de Investigación PID2020-115845GB-I00 Ministerio de Ciencia e Innovación PRE2020-094420 "la Caixa" Foundation 100010434 |
| Rights: | Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original.  |
| Language: | Anglès |
| Document: | Article ; recerca ; Versió publicada |
| Published in: | Journal of high energy physics, Vol. 2023, Issue 7 (July 2023) , art. 194, ISSN 1029-8479 |
| Related work: | van Dissel, Fabio; Pujolàs, Oriol; [et al.]. «Erratum to : Oscillon spectroscopy». Journal of high energy physics, Vol. 2025, Issue 4 (April 2025), art. 191 https://doi.org/10.1007/JHEP04(2025)191 |
