Changes between Version 5 and Version 6 of FourthGeneration


Ignore:
Timestamp:
Apr 2, 2011, 11:03:30 PM (14 years ago)
Author:
Claude Duhr
Comment:

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  • FourthGeneration

    v5 v6  
    88=== Description of the model ===
    99
    10 This model is an extension of the SM, where a new fourth generation of fermions, a t' and a b' with SM couplings, is added. The CKM matrix is parametrized by Vtps and Vtpb, which are supposed small, and to leading order in the expansion in Vtps and Vtpb it is given by,
    11 
    12 {{{
    13    1        0           0           0
    14    0   1-Vtps^2/2       0          Vtps
    15    0   -Vtps Vtpb   1-Vtpb^2/2     Vtpb
    16    0     -Vtps        -Vtpb       1-Vtps^2/2 -Vtpb^2/2
    17 }}}
    18 
     10This model is an extension of the SM, where a new fourth generation of fermions, a t' and a b' with SM couplings, is added. The CKM matrix is a generic 3x3 matrix.
    1911The particle content and the vertices of the model are summarized in the following [/attachment/wiki/FourthGeneration/4th_Generation_Complex_CKM.pdf pdf file].
    2012