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Sum-Rule Inequalities and a Toy Model Paradox

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 نشر من قبل ul
 تاريخ النشر 1997
  مجال البحث
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Fundamental inequalities for QCD sum-rules are applied to resolve a paradox recently encountered in a sum-rule calculation. This paradox was encountered in a toy model known to be free of resonances that yields an apparent resonance using a standard sum-rule stability analysis. Application of the inequalities does not support the existence of a well defined sum-rule calculation, and shows a strong distinction from typical behaviour in QCD.



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