Generated diagrams - all of them ?
Dear experts,
I am generating a process in mssm using the instructions as below (the complete proc_card is pasted at the end).
define susylq = ul ur dl dr cl cr sl sr
define susylq~ = ul~ ur~ dl~ dr~ cl~ cr~ sl~ sr~
define p = g u c d s u~ c~ d~ s~
define j = g u c d s u~ c~ d~ s~
generate p p > susylq susylq~ $ go susyweak @1
add process p p > susylq susylq~ j $ go susyweak @2
add process p p > susylq susylq~ j j $ go susyweak @3
I would expect to obtain diagrams with second generation squarks in the intermediate state as well as first gen. squarks.
However among the output diagrams in MG, I see only first gen. squarks in the intermediate state.
Do you think it is possible that these diagrams get omitted because there are identical diagrams for first gen. squarks ?
Thanks very much,
Maria-Giulia
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set group_subprocesses Auto
set ignore_
set loop_color_flows False
set gauge unitary
set complex_mass_scheme False
set max_npoint_
import model mssm
define p = g u c d s u~ c~ d~ s~
define j = g u c d s u~ c~ d~ s~
define pb = g u c d s b u~ c~ d~ s~ b~
define jb = g u c d s b u~ c~ d~ s~ b~
define l+ = e+ mu+
define l- = e- mu-
define vl = ve vm vt
define vl~ = ve~ vm~ vt~
define fu = u c e+ mu+ ta+
define fu~ = u~ c~ e- mu- ta-
define fd = d s ve~ vm~ vt~
define fd~ = d~ s~ ve vm vt
define susystrong = go ul ur dl dr cl cr sl sr t1 t2 b1 b2 ul~ ur~ dl~\
dr~ cl~ cr~ sl~ sr~ t1~ t2~ b1~ b2~
define susyweak = el- el+ er- er+ mul- mul+ mur- mur+ ta1- ta1+ ta2- t\
a2+ n1 n2 n3 n4 x1- x1+ x2- x2+ sve sve~ svm svm~ svt svt~
define susylq = ul ur dl dr cl cr sl sr
define susylq~ = ul~ ur~ dl~ dr~ cl~ cr~ sl~ sr~
define susysq = ul ur dl dr cl cr sl sr t1 t2 b1 b2
define susysq~ = ul~ ur~ dl~ dr~ cl~ cr~ sl~ sr~ t1~ t2~ b1~ b2~
define susysl = el- el+ er- er+ mul- mul+ mur- mur+ ta1- ta1+ ta2- ta2\
+
define susyv = sve svm svt
define susyv~ = sve~ svm~ svt~
generate p p > susylq susylq~ $ go susyweak @1
add process p p > susylq susylq~ j $ go susyweak @2
add process p p > susylq susylq~ j j $ go susyweak @3
output -f
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