Changes between Version 1 and Version 2 of HelpSyntax

Timestamp:

May 17, 2010, 3:46:36 PM (15 years ago)

Author:

Olivier Mattelaer

Comment:

--

HelpSyntax

@@ -3 +3 @@
 Compare to MG4 the syntax is basically the same
 but 
+   1. All particles should be separated with a spaces
 {{{
-   1. All particles should be separated with a spaces
-
-      write this:
-         w+ > ve e+
-      and not:
-         w+>vee+
-
-   2. The coupling is specify after the process in the same line
-      Please note that::
+write this:
+   w+ > ve e+
+and not:
+   w+>vee+
+}}}
+   2. The coupling is specify after the process in the same line. 
+      Please note that:
         a. Note that contrary to !MG4 the default for the coupling is to infinity
         b. couplings are case sensitive
-
-      write this:
-         w+ > ve e+ QED=2
-      and not:
-         w+>ve e+ qed=2
-
+{{{
+write this:
+   w+ > ve e+ QED=2
+and not:
+   w+>ve e+ qed=2
+}}}
    3. you can still use the special tag at the end of the process
       a. "/" fordids the following particles to appear in the process
@@ -28 +27 @@
       a. In !MG5 the production process is separated from the decay by a coma. 
       b. Each part can be restricted by couplings/ special tag restrictions
-
-      write this:
-         g g > t t~ QED=0 /a, (t > b W+, W+ > l+ vl), t~ >j j j QCD=0
-      and not:
-         g g > (t >b (W+ >l+vl))(t~> j j j)      
+{{{
+write this:
+   g g > t t~ QED=0 /a, (t > b W+, W+ > l+ vl), t~ >j j j QCD=0
+and not:
+   g g > (t >b (W+ >l+vl))(t~> j j j)      
 }}}
+   Note that If you run MG5 on MG4 proc_card. for a decay chains, then the couplings restriction will be applied only on the core process.