This shows you the differences between two versions of the page.
Both sides previous revision Previous revision | Next revision Both sides next revision | ||
documentation:guide:list_of_transformations [2015/11/21 10:57] poslavskysv [DiracTrace] |
documentation:guide:list_of_transformations [2015/11/21 10:58] poslavskysv [Symmetrize] |
||
---|---|---|---|
Line 343: | Line 343: | ||
<html><hr style="border:dashed #555555; border-width:1px 0 0; height:0;"></html> | <html><hr style="border:dashed #555555; border-width:1px 0 0; height:0;"></html> | ||
+ | ====SpinorsSimplify==== | ||
+ | simplifies Dirac spinors: | ||
+ | <sxh groovy; gutter: false> | ||
+ | defineMatrices 'G_a', 'G5', Matrix1.matrix, 'cu', Matrix1.covector | ||
+ | def sSimplify = SpinorsSimplify[[uBar: 'cu', Momentum: 'p_a', Mass: 'm']] | ||
+ | println sSimplify >> 'cu*G^a*p_a'.t | ||
+ | </sxh> | ||
+ | <sxh plain; gutter: false> | ||
+ | > -m*cu*G_{b}+2*cu*p_{b} | ||
+ | </sxh> | ||
+ | See [[documentation:ref:SpinorsSimplify]]. | ||
+ | |||
+ | <html><hr style="border:dashed #555555; border-width:1px 0 0; height:0;"></html> | ||
+ | |||
====Symmetrize==== | ====Symmetrize==== | ||
gives a symmetrization of tensor with respect to specified indices under the specified symmetries: | gives a symmetrization of tensor with respect to specified indices under the specified symmetries: |