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Poincare invariance constraints on NRQCD and potential NRQCD

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 نشر من قبل Antonio Vairo
 تاريخ النشر 2003
  مجال البحث
والبحث باللغة English
 تأليف Nora Brambilla




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We discuss the constraints induced by the algebra of the Poincare generators on non-relativistic effective field theories. In the first part we derive some relations among the matching coefficients of the HQET (and NRQCD), which have been formerly obtained by use of reparametrization invariance. In the second part we obtain new constraints on the matching coefficients of pNRQCD.



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