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########################################################################
# Standard Model with trivial CKM matrix (CompHEP: Feynman gauge)
model "Simplest"
# Independent parameters
### DO NOT CHANGE THE ORDER OF THESE PARAMETERS
parameter GF = 1.16639E-5 # Fermi constant
parameter mZ = 91.1882 # Z-boson mass
parameter mW = 80.419 # W-boson mass
parameter mH = 125 # Higgs mass
parameter meta = 100 # Pseudoaxion mass
parameter alphas = 0.1178 # Strong coupling constant (Z point)
parameter me = 0.000511 # electron mass
parameter mmu = 0.1057 # muon mass
parameter mtau = 1.777 # tau-lepton mass
parameter ms = 0.12 # s-quark mass
parameter mc = 1.25 # c-quark mass
parameter mb = 4.2 # b-quark mass
parameter mtop = 174 # t-quark mass
parameter wtop = 1.523 # t-quark width
parameter wZ = 2.443 # Z-boson width
parameter wW = 2.049 # W-boson width
parameter wH = 0.004143 # Higgs width
parameter weta = 0.001 # Pseudoaxion width
parameter khgaz = 0.000 # anomaly Higgs couplings K factors
parameter khgaga = 0.000 # anomaly Higgs couplings K factors
parameter khgg = 0.000 # anomaly Higgs couplings K factors
parameter mtoph = 1000 # heavy masses
parameter mdh = 1000 # heavy masses
parameter msh = 1000 # heavy masses
parameter mnh1 = 1000 # heavy masses
parameter mnh2 = 1000 # heavy masses
parameter mnh3 = 1000 # heavy masses
parameter mzh = 1000 # heavy masses
parameter mwh = 1000 # heavy masses
parameter mxh = 1000 # heavy masses
parameter myh = 1000 # heavy masses
parameter wtoph = 10 # heavy widths
parameter wdh = 10 # heavy widths
parameter wsh = 10 # heavy widths
parameter wnh1 = 10 # heavy widths
parameter wnh2 = 10 # heavy widths
parameter wnh3 = 10 # heavy widths
parameter wzh = 10 # heavy widths
parameter wwh = 10 # heavy widths
parameter wxh = 10 # heavy widths
parameter wyh = 10 # heavy widths
parameter f = 3000.00 # High scale of Littlest Higgs model
parameter tanb = 4 # tangent beta
parameter xlam = 2 # ratio of Yukawa couplings
# Dependent parameters
derived v = 1 / sqrt (sqrt (2.) * GF) # v (Higgs vev)
derived cw = mW / mZ # cos(theta-W)
derived sw = sqrt (1-cw**2) # sin(theta-W)
derived ee = 2 * sw * mW / v # em-coupling (GF scheme)
derived alpha_em_i = 4 * pi / ee**2 # inverse fine structure const
########################################################################
# Particle content
# The quarks
particle D_QUARK 1 parton
spin 1/2 charge -1/3 isospin -1/2 color 3
name d down
anti dbar D "d~"
tex_anti "\bar{d}"
particle U_QUARK 2 parton
spin 1/2 charge 2/3 isospin 1/2 color 3
name u up
anti ubar U "u~"
tex_anti "\bar{u}"
particle S_QUARK 3 like D_QUARK
name s strange
anti sbar S "s~"
tex_anti "\bar{s}"
mass ms
particle C_QUARK 4 like U_QUARK
name c charm
anti cbar C "c~"
tex_anti "\bar{c}"
mass mc
particle B_QUARK 5 like D_QUARK
name b bottom
anti bbar B "b~"
tex_anti "\bar{b}"
mass mb
particle T_QUARK 6 like U_QUARK
name t top
anti tbar T "t~"
tex_anti "\bar{t}"
mass mtop width wtop
particle DH_QUARK 40 like D_QUARK
name dh
anti dhbar DH
tex_name "D"
tex_anti "\bar{D}"
mass mdh width wdh
particle SH_QUARK 42 like D_QUARK
name sh
anti shbar SH
tex_name "S"
tex_anti "\bar{S}"
mass msh width wsh
particle TH_QUARK 44 like U_QUARK
name th toph
anti thbar TH
tex_anti "\bar{T}"
mass mtoph width wtoph
# The leptons
particle E_LEPTON 11
spin 1/2 isospin -1/2 charge -1
name "e-" e1 electron e
anti "e+" E1 positron
tex_name "e^-"
tex_anti "e^+"
mass me
particle E_NEUTRINO 12 left
spin 1/2 isospin 1/2
name nue n1 "nu_e" ve "e-neutrino"
anti nuebar N1 "ve~"
tex_name "\nu_e"
tex_anti "\bar\nu_e"
particle MU_LEPTON 13 like E_LEPTON
name "mu-" e2 mu muon
anti "mu+" E2
tex_name "\mu^-"
tex_anti "\mu^+"
mass mmu
particle MU_NEUTRINO 14 like E_NEUTRINO
name numu "nu_mu" n2 vm "mu-neutrino"
anti numubar N2 "vm~"
tex_name "\nu_\mu"
tex_anti "\bar\nu_\mu"
particle TAU_LEPTON 15 like E_LEPTON
name "tau-" e3 tau "ta-" tauon
anti "tau+" E3 "ta+"
tex_name "\tau^-"
tex_anti "\tau^+"
mass mtau
particle TAU_NEUTRINO 16 like E_NEUTRINO
name nutau "nu_tau" n3 vt "tau_neutrino"
anti nutaubar N3 "vt~"
tex_name "\nu_\tau"
tex_anti "\bar\nu_\tau"
particle H1_NEUTRINO 41 like E_NEUTRINO
name nh1
anti nh1bar
tex_name "N_1"
tex_anti "\bar{N}_1"
mass mnh1 width wnh1
particle H2_NEUTRINO 43 like E_NEUTRINO
name nh2
anti nh2bar
tex_name "N_2"
tex_anti "\bar{N}_2"
mass mnh2 width wnh2
particle H3_NEUTRINO 45 like E_NEUTRINO
name nh3
anti nh3bar
tex_name "N_3"
tex_anti "\bar{N}_3"
mass mnh3 width wnh3
# The vector bosons
particle GLUON 21 parton gauge
spin 1 color 8
name gl g G gluon
particle PHOTON 22 gauge
spin 1
name A gamma photon
tex_name "\gamma"
particle Z_BOSON 23 gauge
spin 1
name Z
mass mZ width wZ
particle W_BOSON 24 gauge
spin 1 charge 1
name "W+" Wp
anti "W-" Wm
tex_name "W^+"
tex_anti "W^-"
mass mW width wW
particle ZH_BOSON 32 gauge
spin 1
name ZH
tex_name "Z^\prime"
mass mzh width wzh
particle X0_BOSON 33 gauge
spin 1
name X0
tex_name "X^0"
mass mxh width wxh
particle Y0_BOSON 38 gauge
spin 1
name Y0
tex_name "Y^0"
mass myh width wyh
particle WH_BOSON 34 gauge
spin 1 charge 1
name "X+" Xp
anti "X-" Xm
tex_name "X^+"
tex_anti "X^-"
mass mwh width wwh
# The Higgs
particle HIGGS 25
spin 0
name H h Higgs
mass mH width wH
particle ETA 39
spin 0
name eta
tex_name "\eta"
mass meta width weta
# Hadrons
particle PROTON 2212
spin 1/2 charge 1
name p "p+"
anti pbar "p-"
# Beam remnants for proton colliders
particle HADRON_REMNANT 90
name hr
tex_name "had_r"
particle HADRON_REMNANT_SINGLET 91
name hr1
tex_name "had_r^{(1)}"
particle HADRON_REMNANT_TRIPLET 92
color 3
name hr3
tex_name "had_r^{(3)}"
anti hr3bar
tex_name "had_r^{(\bar 3)}"
particle HADRON_REMNANT_OCTET 93
color 8
name hr8
tex_name "had_r^{(8)}"
########################################################################
# Vertices of the Standard model
# In graphs with identical structure, the first vertex is kept for phase space,
# therefore, lighter particles come before heavier ones.
# QED
vertex D d A
vertex U u A
vertex S s A
vertex C c A
vertex B b A
vertex T t A
vertex E1 e1 A
vertex E2 e2 A
vertex E3 e3 A
# QCD
vertex G G G
vertex G G G G
vertex D d G
vertex U u G
vertex S s G
vertex C c G
vertex B b G
vertex T t G
# Neutral currents
vertex D d Z
vertex U u Z
vertex S s Z
vertex C c Z
vertex B b Z
vertex T t Z
vertex E1 e1 Z
vertex E2 e2 Z
vertex E3 e3 Z
vertex N1 n1 Z
vertex N2 n2 Z
vertex N3 n3 Z
# Charged currents
vertex U d Wp
vertex C s Wp
vertex T b Wp
vertex D u Wm
vertex S c Wm
vertex B t Wm
vertex N1 e1 Wp
vertex N2 e2 Wp
vertex N3 e3 Wp
vertex E1 n1 Wm
vertex E2 n2 Wm
vertex E3 n3 Wm
# Yukawa (neutral)
### keeping only 3rd generation for the moment
# vertex S s H
# vertex C c H
vertex B b H
vertex T t H
# vertex E2 e2 H
vertex E3 e3 H
# Vector-boson self-interactions
vertex Wp Wm A
vertex Wp Wm Z
vertex Wp Wm Z Z
vertex Wp Wp Wm Wm
vertex Wp Wm Z A
vertex Wp Wm A A
# ordinary SM couplings
vertex H Wp Wm
vertex H Z Z
vertex H H Wp Wm
vertex H H Z Z
# anomaly couplings
#vertex H A A
#vertex H A Z
#vertex H g g
vertex eta A A
vertex eta g g
# Higgs self-interactions
vertex H H H
vertex H H H H
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