#****************************************************************** # MadGraph/MadEvent * #****************************************************************** # Les Houches friendly file for the SM parameters of MadGraph * # Spectrum and decay widths produced by SMCalc * #****************************************************************** #*Please note the following IMPORTANT issues: * # * #0. REFRAIN from editing this file by hand! Some of the parame- * # ters are not independent * # (such as G_Fermi, alpha_em, sin(theta_W),MZ,MW) and serious * # problems might be encountered (such as violation of unitarity * # or gauge invariance). Always use a calculator. * # * #1. alpha_S(MZ) has been used in the calculation of the parameters* # but, for consistency, it will be reset by madgraph to the * # value expected IF the pdfs for collisions with hadrons are * # used. This value is KEPT by madgraph when no pdf are used * # lpp(i)=0 . * # * #2. Values of the charm and bottom kinematic (pole) masses are * # those used in the matrix elements and phase space UNLESS they * # are set to ZERO from the start in the model (particles.dat) * # This happens, for example, when using 5-flavor QCD where * # charm and bottom are treated as partons in the initial state * # and a zero mass might be hardwired in the model definition. * # * #****************************************************************** Block SMINPUTS # Standard Model inputs 1 1.32506980E+02 # alpha_em(MZ)(-1) SM MSbar 2 1.16639000E-05 # G_Fermi 3 1.18000000E-01 # alpha_s(MZ) SM MSbar 4 9.11880000E+01 # Z mass (as input parameter) Block MGYUKAWA # Yukawa masses m/v=y/sqrt(2) # PDG YMASS 5 4.20000000E+00 # mbottom for the Yukawa y_b 4 1.42000000E+00 # mcharm for the Yukawa y_c 6 1.64500000E+02 # mtop for the Yukawa y_t 15 1.77700000E+00 # mtau for the Yukawa y_ta Block MGCKM # CKM elements for MadGraph 1 1 9.75000000E-01 # Vud for Cabibbo matrix Block MASS # Mass spectrum (kinematic masses) # PDG Mass 5 4.70000000E+00 # bottom pole mass 6 1.72000000E+02 # top pole mass 15 1.77700000E+00 # tau mass 23 9.11880000E+01 # Z mass 24 8.04190000E+01 # W mass 25 1.20000000E+02 # H mass # PDG Width DECAY 6 1.43947825E+00 # top width DECAY 23 2.44140351E+00 # Z width DECAY 24 2.04759951E+00 # W width DECAY 25 5.75308848E-03 # H width # BR NDA ID1 ID2 8.27451012E-02 2 4 -4 # BR( H -> c cbar ) 7.17809696E-01 2 5 -5 # BR( H -> b bbar ) 0.00000000E+00 2 6 -6 # BR( H -> t tbar ) 4.31720144E-02 2 15 -15 # BR( H -> tau- tau+) 6.90597075E-03 2 23 23 # BR( H -> Z Z^(*)) 7.45906395E-02 2 24 -24 # BR( H -> W W^(*)) 3.01765558E-02 2 21 21 # BR( H -> g g ) 1.42800773E-03 2 22 22 # BR( H -> A A )