Brodsky-Lepage-Mackenzie optimal renormalization scale setting for semihard processes
نویسندگان
چکیده
منابع مشابه
OPTIMAL RENORMALIZATION SCALE AND SCHEME . . . Lepage , sjb C . Ji , A . Pang , D . Robertson
AdS/QCD INT March 28, 2008 120 shown in Fig. 1. The corresponding predictions for !R and !MS using the CSRs at NLO are also shown. Note that for low Q the couplings, although frozen, are large. Thus the NLO and higher-order terms in the CSRs are large, and inverting them perturbatively to NLO does not give accurate results at low scales. In addition, higher-twist contributions to !V and !R , wh...
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We use the BLM method to fix the renormalization scale of the QCD coupling in exclusive hadronic amplitudes such as the pion form factor and the photon-to-pion transition form factor at large momentum transfer. Renormalization-scheme-independent commensurate scale relations are established which connect the hard scattering subprocess amplitudes that control exclusive processes to other QCD obse...
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ژورنال
عنوان ژورنال: Physical Review D
سال: 2015
ISSN: 1550-7998,1550-2368
DOI: 10.1103/physrevd.91.114009