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Revision 1.5 - (download) (annotate)
Sun Dec 9 01:55:47 2007 UTC (9 years, 11 months ago) by madgraph
Branch: MAIN
CVS Tags: v4_2_4, MW2-split, before_fuse, HEAD
Branch point for: MW2, MadOnia, MWDEV
Changes since 1.4: +0 -2 lines
Removed block MODSEL in accordance with new standard
#******************************************************************
#                      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     1.74300000E+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     1.50833649E+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    )

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