Spectator Effects in Heavy Quark Effective Theory at O(1/m3Q)
نویسنده
چکیده
We complete the one loop renormalization of the HQET lagrangian at O(1/m3Q) including four fermion operators with two heavy and two light quark fields in the operator basis. It is shown that as a consequence the short distance coefficients of the operators bilinear in the heavy quark field receive nontrivial corrections. email: [email protected]
منابع مشابه
Renormalizing Heavy Quark Effective Theory at O(1/m3Q)
We present a calculation of the renormalized HQET Lagrangian at order O(1/m3Q) in the one particle sector. The anomalous dimensions of local operators and time ordered products of dimension 7 contributing at this order are calculated in the one loop approximation. We show that a careful treatment of the time ordered products is necessary to arrive at a gauge independent renormalized lagrangian....
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We extend the investigation of the reparametrization invariance of Heavy Quark Effective Theory to O(1/m3Q). We show that in the presence of radiative corrections reparametrization invariance can only be maintained if the the reparametrization transformation of the fields is renormalized properly. email: [email protected]
متن کاملSpectator Effects in Heavy Quark Effective Theory at O(1/mQ)
We complete the one loop renormalization of the HQET lagrangian at O(1/mQ) including four fermion operators with two heavy and two light quark fields in the operator basis. It is shown that as a consequence the short distance coefficients of the operators bilinear in the heavy quark field receive nontrivial corrections. ¶email: [email protected]
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