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We present matching factors for $Z_q$ calculated perturbatively at theone-loop level with improved staggered quarks. We calculate $Z_q$ withHYP-smeared staggered quarks and Symanzik-improved gluons using both RI-MOM andRI$'$-MOM schemes. We compare the results with those obtained using thenonperturbative renormalization (NPR) method.

Perturbative calculation of $Z_q$ at the one-loop level using HYP-smeared staggered quarks