Changes between Version 5 and Version 6 of DevelopmentPage/MultiParton


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Timestamp:
Feb 21, 2010, 8:19:27 PM (14 years ago)
Author:
Fabio Maltoni
Comment:

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  • DevelopmentPage/MultiParton

    v5 v6  
    1515We suggest to proceeed in steps.
    1616
    17 === First Step : getting a code for pp>X + n gluons exact at all 1/Nc^n^ and compiling. ===
     17=== First Step : getting a code for pp>X + n gluons exact at all orders in 1/Nc and compiling. ===
    1818
    1919This should be achieved rather easily, if we don't worry about SPEED (which we will in the next step, of course).
    20 Anyway is mandatory to have a code that can do |M|^2^ EXACTLY (at all orders in 1/Nc^n^). Note that the current
     20Anyway is mandatory to have a code that can do |M|^2^ EXACTLY (at all orders in 1/Nc). Note that the current
    2121algorithm that gets the color matrix is already able to select powers in 1/Nc so this is not an issue.
    2222
     
    3535and getting all the others by applying the same permutations. Finally, if one is able to generate the permutations instead of listing them in the code, one could really write a small code.
    3636
    37 === Third Step : Expand the results in powers and MC over flows 1/Nc^2 ===
     37=== Third Step : Expand the results in powers of 1/Nc and MC over color flows ===
    3838
    3939More about this to come...