Flux Tube S -Matrix Bootstrap
| Autor: | Joao Penedones, Andrea L. Guerrieri, Joan Elias Miró, Pedro Vieira, Aditya Hebbar |
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| Přispěvatelé: | Theoretical Physics Department, Universidade Estadual Paulista (Unesp), École Polytechnique Fédérale de Lausanne (EPFL), Perimeter Institute for Theoretical Physics |
| Rok vydání: | 2019 |
| Předmět: |
High Energy Physics - Theory
FOS: Physical sciences hep-lat General Physics and Astronomy 01 natural sciences Matrix (mathematics) Theoretical physics High Energy Physics - Phenomenology (hep-ph) High Energy Physics - Lattice 0103 physical sciences Quantum field theory 010306 general physics nlin.SI Particle Physics - Phenomenology S-matrix Physics Nonlinear Sciences - Exactly Solvable and Integrable Systems Flux tube hep-th High Energy Physics - Lattice (hep-lat) Degenerate energy levels hep-ph Particle Physics - Lattice Quantum number states Massless particle High Energy Physics - Phenomenology High Energy Physics - Theory (hep-th) UV completion Exactly Solvable and Integrable Systems (nlin.SI) Nonlinear Systems Particle Physics - Theory |
| Zdroj: | Physical Review Letters Scopus Repositório Institucional da UNESP Universidade Estadual Paulista (UNESP) instacron:UNESP |
| ISSN: | 1079-7114 0031-9007 |
| DOI: | 10.1103/physrevlett.123.221602 |
| Popis: | We bootstrap the S-matrix of massless particles in unitary, relativistic two dimensional quantum field theories. We find that the low energy expansion of such S-matrices is strongly constrained by the existence of a UV completion. In the context of flux tube physics, this allows us to constrain several terms in the S-matrix low energy expansion or -- equivalently -- on Wilson coefficients of several irrelevant operators showing up in the flux tube effective action. These bounds have direct implications for other physical quantities; for instance, they allow us to further bound the ground state energy as well as the level splitting of degenerate energy levels of large flux tubes. We find that the S-matrices living at the boundary of the allowed space exhibit an intricate pattern of resonances with one sharper resonance whose quantum numbers, mass and width are precisely those of the world-sheet axion proposed in [1,2]. The general method proposed here should be extendable to massless S-matrices in higher dimensions and should lead to new quantitative bounds on irrelevant operators in theories of Goldstones and also in gauge and gravity theories. 7 + 10 pages, 13 figures; v2: Axionic String Ansatz appendix added. New SP bound added. Typos fixed, references added |
| Databáze: | OpenAIRE |
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