Tue·Oct 8, 2002Tuesday·October 8, 2002

1. 01*

   Nucleon Decay Matrix Elements for Domain-Wall Fermions

   Yasumichi Aoki · RBC collaboration

   We report on the nucleon decay matrix elements with domain-wall fermions in quenched approximation. Results from direct and indirect method are compared with a focus on the process of a proton decaying to a pion and a lepton. We discuss the renormalization necessary for the matching to the continuum theory. Preliminary results for the renormalized chiral lagrangian parameters are presented.

   hep-latNucl.Phys.B Proc.Suppl.(2003)·14 citations
2. 02*

   Simulations of Alice Electrodynamics on a Lattice

   J.Striet🇳🇱 · F.A.Bais🇳🇱

   In this paper we present results of numerical simulations and some (analytical) approximations of a compact $U(1)⋉{\text{ZZ}}_2$ lattice gauge theory, including an extra bare mass term for Alice fluxes. The subtle interplay between Alice fluxes and (Cheshire) magnetic charges is analysed. We determine the phase diagram and some characteristics of the model in three and four dimensions. The results of the numerical simulations in various regimes, compare well with some analytic approximations.

   hep-lathep-thNPB(2002)·3 citations
3. 03*

   Compact QED under scrutiny: it's first order

   G. Arnold🇩🇪 · B. Bunk🇩🇪 · Th. Lippert🇩🇪 · K. Schilling🇩🇪

   We report new results from our finite size scaling analysis of 4d compact pure U(1) gauge theory with Wilson action. Investigating several cumulants of the plaquette energy within the Borgs-Kotecky finite size scaling scheme we find strong evidence for a first-order phase transition and present a high precision value for the critical coupling in the thermodynamic limit.

   hep-latNucl.Phys.B Proc.Suppl.(2003)·57 citations

* Reconstructed cohort: no mailing for this day survives in the archive. Papers are grouped by their submission times and arXiv's announcement cut-off, assuming announcement without delay; positions follow identifier order. Validated at ~91% exact-day agreement against the archived era.