The low-lying mass spectrum of the N=1 SU(2) SUSY Yang-Mills theory with Wilson fermions

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dc.creatorFarchioni, Federico
dc.creatorPeetz, Roland
dc.date2004-07-28
dc.date2005-01-14
dc.date.accessioned2026-07-07T03:39:09Z
dc.date.available2026-07-07T03:39:09Z
dc.descriptionWe analyze the low energy spectrum of bound states of the N=1 SU(2) SUSY Yang-Mills Theory (SYM). This work continues the investigation of the non-perturbative properties of SYM by Monte Carlo simulations in the Wilson discretization with dynamical gluinos. The dynamics of the gluinos is included by the Two-Step Multi-Bosonic Algorithm (TSMB) for dynamical fermions. A new set of configurations has been generated on a 16^3x32 lattice at beta=2.3 and kappa=0.194. The analysis also includes sets of configurations previously generated on a smaller (12^3x24) lattice at kappa=0.1925, 0.194 and 0.1955. Guided by predictions from low energy Lagrangians, we consider spin-1/2, scalar and pseudoscalar particles. The spectrum of SYM is a challenging subject of investigation because of the extremely noisy correlators. In particular, meson-like correlators contain disconnected contributions. The larger time-extention of the 16^3x32 lattice allows to observe two-state signals in the effective mass. Finite-volume effects are monitored by comparing results from the two lattice sizes.
dc.description17 pages, 9 figures; improved analysis of the pseudoscalar meson mass, final published version
dc.identifierhttps://arxiv.org/abs/hep-lat/0407036
dc.identifierhttp://arxiv.org/abs/hep-lat/0407036
dc.identifierEur.Phys.J. C39 (2005) 87-94
dc.identifierdoi:10.1140/epjc/s2004-02081-2
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/38814
dc.subjectHigh Energy Physics - Lattice
dc.subjectHigh Energy Physics - Theory
dc.titleThe low-lying mass spectrum of the N=1 SU(2) SUSY Yang-Mills theory with Wilson fermions
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