ar X iv : h ep - p h / 04 07 07 9 v 1 7 J ul 2 00 4 Multi - leg calculations with the GRACE / 1 - LOOP system
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چکیده
منابع مشابه
ar X iv : h ep - p h / 04 02 14 5 v 3 2 M ar 2 00 4 Automatic one - loop calculation of MSSM processes with GRACE
We have developed the system for the automatic computation of cross sections, GRACE/SUSY , including the one-loop calculations for processes of the minimal supersymmetric extension of the the standard model. For an application, we investigate the process e + e − → Z 0 h 0 .
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Multi-loop calculations of the effective action for the matrix model are important for carrying out tests of the conjectured relationship of the matrix model to the low energy description of M-theory. In particular, comparison with N -graviton scattering amplitudes in eleven-dimensional supergravity requires the calculation of the effective action for the matrix model with gauge group SU(N). A ...
متن کاملar X iv : h ep - p h / 04 02 14 5 v 1 1 3 Fe b 20 04 Automatic one - loop calculation of MSSM processes with GRACE
We have developed the system for the automatic computation of cross-sections, GRACE/SUSY , including the one-loop calculations for processes of the minimal supersymmetric extension of the the standard model. We discuss how to check our system for the one-loop calculations in comparison with the case for the tree-level calculations. For an application, we investigate the process e + e − → Z 0 h 0 .
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متن کاملar X iv : h ep - p h / 04 07 01 6 v 1 1 J ul 2 00 4 Numerical Evaluation of One - Loop Diagrams Near Exceptional Momentum Configurations
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