Noncommutative GUT inspired theories and the UV finiteness of the fermionic four point functions

We show at one-loop and first order in the noncommutativity parameters that in any noncommutative GUT inspired theory the total contribution to the fermionic four point functions coming only from the interaction between fermions and gauge bosons, though not UV finite by power counting, is UV finite at the end of the day. We also show that this is at odds with the general case for noncommutative gauge theories --chiral or otherwise-- defined by means of Seiberg-Witten maps that are the same --barring the gauge group representation-- for left-handed spinors as for right-handed spinors. We believe that the results presented in this paper tilt the scales to the side of noncommutative GUTS and noncommutative GUT inspired versions of the Standard Model.

Note:

11 pages, 3 figures. Version 2: references fixed and completed. Version 3: Comments added

12.10.-g
11.15.-q
11.10.Gh
11.10.Nx
Renormalization
Regularization and Renormalons
Non-commutative geometry
Grand Unified Theories
fermion
n-point function: 4

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