The θ-dependence of the Yang-Mills spectrum from analytic continuation
We study the θ-dependence of the string tension and of the lightest glueball mass in four-dimensional SU(N) Yang-Mills theories. More precisely, we focus on the coefficients parametrizing the dependence of these quantities, which we investigate by means of numerical simulations of the lattice-discre...
| Autores: | , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2024 |
| País: | España |
| Institución: | Consejo Superior de Investigaciones Científicas (CSIC) |
| Repositorio: | DIGITAL.CSIC. Repositorio Institucional del CSIC |
| OAI Identifier: | oai:digital.csic.es:10261/415081 |
| Acceso en línea: | http://hdl.handle.net/10261/415081 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85193402882&doi=10.1007%2FJHEP05%282024%29163&partnerID=40&md5=3aea0a5f07ec836e278c6d24a8d81f84 |
| Access Level: | acceso abierto |
| Palabra clave: | 1/N Expansion Lattice Quantum Field Theory Vacuum Structure and Confinement |
| Sumario: | We study the θ-dependence of the string tension and of the lightest glueball mass in four-dimensional SU(N) Yang-Mills theories. More precisely, we focus on the coefficients parametrizing the dependence of these quantities, which we investigate by means of numerical simulations of the lattice-discretized theory, carried out using imaginary values of the θ parameter. Topological freezing at large N is avoided using the Parallel Tempering on Boundary Conditions algorithm. We provide controlled continuum extrapolations of such coefficients in the N = 3 case, and we report the results obtained on two fairly fine lattice spacings for N = 6. |
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