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! By default, MadLoop is allowed to slightly deform the Phase-Space point in input
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! so to insure perfect onshellness of the external particles and perfect energy-momentum
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! conservation. The deformation is minimal and such that it leaves the input PS point
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! unchanged if it already satisfies the physical condiditions mentionned above.
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! Notice that this controls only the double precision behavior. For multiple precision,
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! this slight deformation is applied anyway (Otherwise multiple precision is pointless.)
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! unchanged if it already satisfies the physical condiditions mentioned above.
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! This integer values select what is the method to be employed preferably to restore this
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! precision. It can take the following values:
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! -1 :: No method is used for double precision computations, and method 2 will be used
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! preferentially when quadruple precision (for which this precision improvement
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! is mandatory, otherwise quadruple precision is pointless)
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! 1 :: This methods imitates what is done in PSMC, namely
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! a) Set the space-like momentum of the last external particle to be the
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! opposite of the sum of the others (with a minus sign for the initial states).
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! b) Rescale all final state space-like momenta by a fixed value x computed such
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! that energy is conserved when particles are put exactly onshell. This value
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! is determined numericaly via Ralph-Newton's method.
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! c) Set all energies to have particles exactly onshell.
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! 2 :: This method applies a shift to the energy and the x and y components of the first
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! initial state momentum in order to restore exact energy momentum conservation after
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! particles have been put exactly onshell via a shift of the z component of their
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! =================================================================================
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! The parameters below set two CutTools internal parameters accessible to the user.
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! =================================================================================
added
removed
Template/loop_material/StandAlone/Cards/MadLoopParams.dat
