Adjoint string breaking in 4d SU(2) Yang-Mills theory

We compute the static potential of adjoint sources in SU(2) Yang-Mills theory in four dimensions by numerical Monte Carlo simulations. Following a recent calculation in 2+1 dimensions, we employ a variational approach involving string and gluelump operators and obtain clear evidence for string break...

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Detalles Bibliográficos
Autores principales: de Forcrand, Philippe, Philipsen, Owe
Lenguaje:eng
Publicado: 1999
Materias:
Particle Physics - Lattice
Acceso en línea:https://dx.doi.org/10.1016/S0370-2693(00)00117-9
http://cds.cern.ch/record/412953
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author de Forcrand, Philippe
Philipsen, Owe
author_facet de Forcrand, Philippe
Philipsen, Owe
author_sort de Forcrand, Philippe
collection CERN
description We compute the static potential of adjoint sources in SU(2) Yang-Mills theory in four dimensions by numerical Monte Carlo simulations. Following a recent calculation in 2+1 dimensions, we employ a variational approach involving string and gluelump operators and obtain clear evidence for string breaking and the saturation of the potential at large distances. For the string breaking scale we find $r_b \approx 1.25{\rm fm}, 2.3 r_0$, or in units of the lightest glueball, $r_b m_{0++} \approx 9.7$. We furthermore resolve the first excitation of the flux-tube and observe its breaking as well. The result for $r_b$ is in remarkable quantitative agreement with the three-dimensional one.
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institution Organización Europea para la Investigación Nuclear
language eng
publishDate 1999
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spelling cern-4129532023-10-04T07:28:25Zdoi:10.1016/S0370-2693(00)00117-9http://cds.cern.ch/record/412953engde Forcrand, PhilippePhilipsen, OweAdjoint string breaking in 4d SU(2) Yang-Mills theoryParticle Physics - LatticeWe compute the static potential of adjoint sources in SU(2) Yang-Mills theory in four dimensions by numerical Monte Carlo simulations. Following a recent calculation in 2+1 dimensions, we employ a variational approach involving string and gluelump operators and obtain clear evidence for string breaking and the saturation of the potential at large distances. For the string breaking scale we find $r_b \approx 1.25{\rm fm}, 2.3 r_0$, or in units of the lightest glueball, $r_b m_{0++} \approx 9.7$. We furthermore resolve the first excitation of the flux-tube and observe its breaking as well. The result for $r_b$ is in remarkable quantitative agreement with the three-dimensional one.We compute the static potential of adjoint sources in SU(2) Yang–Mills theory in four dimensions by numerical Monte Carlo simulations. Following a recent calculation in 2+1 dimensions, we employ a variational approach involving string and gluelump operators and obtain clear evidence for string breaking and the saturation of the potential at large distances. For the string breaking scale we find r b ≈1.25 fm , 2.3 r 0 , or in units of the lightest glueball, r b m 0++ ≈9.7. We furthermore resolve the first excitation of the flux-tube and observe its breaking as well. The result for r b is in remarkable quantitative agreement with the three-dimensional one.We compute the static potential of adjoint sources in SU(2) Yang-Mills theory in four dimensions by numerical Monte Carlo simulations. Following a recent calculation in 2+1 dimensions, we employ a variational approach involving string and gluelump operators and obtain clear evidence for string breaking and the saturation of the potential at large distances. For the string breaking scale we find $r_b \approx 1.25{\rm fm}, 2.3 r_0$, or in units of the lightest glueball, $r_b m_{0++} \approx 9.7$. We furthermore resolve the first excitation of the flux-tube and observe its breaking as well. The result for $r_b$ is in remarkable quantitative agreement with the three-dimensional one.hep-lat/9912050CERN-TH-99-413CERN-TH-99-413oai:cds.cern.ch:4129531999-12-24
spellingShingle Particle Physics - Lattice
de Forcrand, Philippe
Philipsen, Owe
Adjoint string breaking in 4d SU(2) Yang-Mills theory
title Adjoint string breaking in 4d SU(2) Yang-Mills theory
title_full Adjoint string breaking in 4d SU(2) Yang-Mills theory
title_fullStr Adjoint string breaking in 4d SU(2) Yang-Mills theory
title_full_unstemmed Adjoint string breaking in 4d SU(2) Yang-Mills theory
title_short Adjoint string breaking in 4d SU(2) Yang-Mills theory
title_sort adjoint string breaking in 4d su(2) yang-mills theory
topic Particle Physics - Lattice
url https://dx.doi.org/10.1016/S0370-2693(00)00117-9
http://cds.cern.ch/record/412953
work_keys_str_mv AT deforcrandphilippe adjointstringbreakingin4dsu2yangmillstheory
AT philipsenowe adjointstringbreakingin4dsu2yangmillstheory

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