Mon·Aug 30, 2004Monday·August 30, 2004

1. 01*

   Exploratory spectrum calculations using overlap valence quarks on a staggered sea

   UKQCD Collaboration · K.C. Bowler · B. Joó · R.D. Kenway · C.M. Maynard · R.J. Tweedie

   We present exploratory results for the hadron mass spectrum and pseudoscalar meson decay constants using mixed actions. We use improved staggered sea quarks and HYP-smeared overlap valence quarks. We obtain good signals on 10 configurations at one lattice spacing and two different sets of sea quark masses.

   hep-latNucl.Phys.B Proc.Suppl.(2005)·3 citations
2. 02*

   Information on the Super Yang-Mills Spectrum

   A. Feo (Parma Univ.)🇮🇹 · P. Merlatti (NORDITA)🇸🇪 · F. Sannino (NORDITA)🇸🇪

   We investigate the spectrum of the lightest states of N=1 Super Yang-Mills. We first study the spectrum using the recently extended Veneziano Yankielowicz theory containing also the glueball states besides the gluinoball ones. Using a simple Kahler term we show that within the effective Lagrangian approach one can accommodate either the possibility in which the glueballs are heavier or lighter than the gluinoball fields. We then provide an effective Lagrangian independent argument which allows, using information about ordinary QCD, to deduce that the lightest states in super Yang-Mills are the gluinoballs. This helps constraining the Kahler term of the effective Lagrangian. Using this information and the effective Lagrangian we note that there is a small mixing among the gluinoball and glueball states.

   ↳ hep-thhep-lathep-phPRD(2004)·40 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.