Minimal Universal Extra dimensions in CalcHEP/CompHEP

Reference (arXiv:1002.4624) Model files MUED for CalcHEP (recent update : June 16, 2009) Download CalcHEP, CompHEP Contacts

• Typos in particle masses for SM tau (Mt) and SM top (Mtop) are fixed, 06/16/2009. (thanks to FeynRules team)
• A bug in a vertex, (W+, ~W+, ~W-, W-), is corrected, 06/16/2009. (thanks to FeynRules team)

• All annihilation cross-sections are compared with analytic expressions in hep-ph/0206071, hep-ph/0509118 and hep-ph/0509119 and we find agreements.
• Numerical values of decay widths of KK particles are compared with analytic expressions in hep-ph/0205314, hep-ph/0312055 and hep-ph/0509246 and we find agreements.
• We reproduce cross-sections in hep-ph/0106336 and hep-ph/0201300.
• We reproduce all invariant mass distributions and asymmetries in hep-ph/0507170. For illustration, here we show our results for asymmetries and dielpton invariant mass distributions in the squark or KK-quark decay for both narrow (UED500) and broad (SPS1a) mass spectrum, as well as the same results from hep-ph/0507170 .
  • Asymmetry for narrow mass spectrum (UED500)
    
     

  • Asymmetry for broad mass spectrum (SPS1a)
    
     

  • Dilepton invariant mass for narrow mass spectrum (UED500)
    
     

  • Dilepton invariant mass for broad mass spectrum (SPS1a)