Generalized coherent states in QCD from asymptotic symmetries
| Autor: | A. H. Anupam, P V Athira |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
High Energy Physics - Theory
Quantum chromodynamics Physics Conservation law 010308 nuclear & particles physics Structure (category theory) Hilbert space FOS: Physical sciences 01 natural sciences Fock space Gluon symbols.namesake High Energy Physics - Theory (hep-th) 0103 physical sciences Homogeneous space symbols Coherent states 010306 general physics Mathematical physics |
| DOI: | 10.48550/arxiv.1907.06255 |
| Popis: | We investigate the relationship between asymptotic symmetries of QCD and vacuum transitions induced during scattering. Starting with the Fock vacuum in the far past, the infinity of conservation laws associated to (non-Abelian) asymptotic symmetries in QCD can be used to determine the vacuum in the far future. We show that the corresponding asymptotic Hilbert space in the future is generated by a class of dressed states in which each finite energy particle is dressed by a cloud of interacting soft gluons. We identify the precise structure of the dressing using conservation laws and show that the corresponding asymptotic states are equivalent to the generalised coherent states defined by Catani et al. Comment: v1:44pages ; v2:46pages, new references added, 2 figures added, matches with published version |
| Databáze: | OpenAIRE |
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