The Ghost-propagator DSE - Physics
The Ghost-propagator DSE - Physics
The Ghost-propagator DSE - Physics
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<strong>The</strong> <strong>Ghost</strong>-<strong>propagator</strong> <strong>DSE</strong><br />
solutions (V)<br />
Next-to-leading asymptotic approximation:<br />
Zero-momentum Taylor-scheme efective charge<br />
A. Aguilar, D. Binosi, J. Papavassiliou, J.R-Q; PRD80(2009)085018<br />
QED-like PT efective charge:<br />
�d �q� = g 2 � ��q 2 � = g 2 ��q 2 �<br />
[1�G �q 2 �] 2 ≃ �g 2 �q 2 �<br />
q 2 �M 2<br />
Taylor efective charge:<br />
2 2 2 2 2<br />
�r�q� = gT ��q � F �q � = gT ���q 2 2<br />
2<br />
� [1�G �q �]<br />
�≃1<br />
IR efective charge!!<br />
F 2 �q 2 � ≃ �g<br />
2 2<br />
T �q �<br />
q 2 �M 2
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