MadSpin error for MSSM@NLO process
Hi Oliver
I'm trying to calculate gluino production @NLO for MSSM and then decay it to 2j+MET with madspin. Thus I follow this procedure;
generate p p > go go [QCD]
first I tried to define squarks as
define sq = b1 b1~ b2 b2~ dl dl~ dr dr~ sl sl~ sr sr~ ul ul~ cl cl~
and then I defined them both in madspin card and before generating the event then tried to decay gluinos as
decay go > sq j
decay sq > j n1
but it did not recognize sq and gave the following error;
Command "launch auto " interrupted with error:
KeyError : 'sq'
Thus I tried set spinmode none (rest is the same) then I got
CRITICAL: Branching ratio larger than one for 1000021
Command "launch auto " interrupted with error:
ZeroDivisionError : float division by zero
then instead of using sq, I used all. With spinmode none, I got the same error as above and without I got
Command "launch auto " interrupted with error:
MadGraph5Error : No valid decay for 1000021. No 2 body decay for that particle. (three body are not supported by MadSpin)
I couldn't understand what am I doing wrong here. Do you think there is a problem with the model that I'm using or am I missing something in the process itself.
Thank you very much
Jack
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