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| 3 | == What are the {{{QNUMBERS}}} useful for ? == |
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| 5 | The QNUMBERS correspond to the name of a new LHA block in the param_card.dat file, which is used by some parton shower/hadronization packages taking an LHE file as an input. This block is read in the <slha> subblock of the <header> block of the LHE file. It is used by the parton shower/hadronization package to correctly simulate radiations and decay (when the additional information from the MASS and DECAY blocks is used) of new particles. |
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| 7 | The QNUMBERS block is automatically written in the default param_card.dat when the {{{USRMOD}}} code is used to define a new model. It can manually be added by using the qnumbers.pl script in the {{{USRMOD}}} directory which reads information from the {{{particles.dat}}} file. |
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| 9 | More information on this interface in this [http://arXiv.org/abs/0712.3311 article]. |
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| 11 | -- Main.MichelHerquet - 02 Mar 2009 |