Variational analysis of low-lying states in supersymmetric Yang-Mills theory
| Autor: | Simon Kuberski, Philipp Scior, Gernot Münster, Henning Gerber, Stefano Piemonte, Istvan Montvay, Sajid Ali, Georg Bergner |
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| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Wilson loop
High Energy Physics::Lattice supersymmetry: 1 variational [numerical methods] 01 natural sciences gauge field theory: SU(2) Operator (computer programming) 1 [supersymmetry] numerical methods: variational Mathematical physics Physics High Energy Physics - Lattice (hep-lat) ddc:530 mass [ground state] mass dependence Pseudoscalar supersymmetry [Yang-Mills] gauge field theory: Yang-Mills bound state: mass: calculated scalar Nuclear and High Energy Physics Yang-Mills [gauge field theory] FOS: Physical sciences mass [excited state] Yang–Mills theory Supersymmetric Gauge Theory High Energy Physics - Lattice Gauge group 0103 physical sciences mixing lcsh:Nuclear and particle physics. Atomic energy. Radioactivity continuum limit 010306 general physics numerical calculations ground state: mass pseudoscalar Lattice Quantum Field Theory 010308 nuclear & particles physics mass: calculated [bound state] Degenerate energy levels High Energy Physics::Phenomenology lattice field theory: supersymmetry Yang-Mills: supersymmetry 530 Physik excited state: mass Variational method Supersymmetric gauge theory SU(2) [gauge field theory] lcsh:QC770-798 supersymmetry [lattice field theory] |
| Zdroj: | Journal of high energy physics 1904(4), 150 (2019). doi:10.1007/JHEP04(2019)150 Journal of High Energy Physics, Vol 2019, Iss 4, Pp 1-23 (2019) Journal of High Energy Physics |
| DOI: | 10.1007/JHEP04(2019)150 |
| Popis: | Journal of high energy physics 1904(4), 150 (2019). doi:10.1007/JHEP04(2019)150 We have calculated the masses of bound states numerically in $ \mathcal{N} $ = 1 supersymmetric Yang-Mills theory with gauge group SU(2). Using the suitably optimised variational method with an operator basis consisting of smeared Wilson loops and mesonic operators, we are able to obtain the masses of the ground states and first excited states in the scalar, pseudoscalar and spin- $ \frac{1}{2} $ sectors. Extrapolated to the continuum limit, the corresponding particles appear to be approximately mass degenerate and to fit into the predicted chiral supermultiplets. The extended operator basis including both glueball-like and mesonic operators leads to improved results compared to earlier studies, and moreover allows us to investigate the mixing content of the physical states, which we compare to predictions in the literature. Published by SISSA, [Trieste] |
| Databáze: | OpenAIRE |
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