Changes between Version 8 and Version 9 of DevelopmentPage/CutTools

Timestamp:

Mar 4, 2010, 10:19:14 AM (14 years ago)

Author:

Rikkert

Comment:

--

DevelopmentPage/CutTools

@@ -50 +50 @@
 === 1) Quadruple (or higher) precision ===
 
-For some phase-space points, normal double precision is not good enough to reliable calculate the value of the loops. CutTools automatically recognizes these points and has the possibility to go to quadruple or higher precision. To do this consistently also the inputs, ie. the HELAS routines should be in higher precision. In fact, only the subroutines that deal with the complex particles need quadruple precision, if the rest is not recomputed for a slightly different value of the q-momenta. So this can only be done after the above optimizations of the FD-structures is implemented.
+For some phase-space points, normal double precision is not good enough to reliable calculate the value of the loops. CutTools automatically recognizes these points and has the possibility to go to quadruple or higher precision. To do this consistently also the inputs, ie. the HELAS routines should be in higher precision. In fact, only the subroutines that deal with the complex particles need quadruple precision, if the rest is not recomputed for a different value of the q-momenta. So this can only be done after the above optimizations of the FD-structures is implemented.
 
 === 2) R2 and FD-structures ===