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Reduction of Charm Quark Mass Scheme Dependence in $\bar{B} \to X_{s}\gamma$ at the NNLL Level / Asatrian, H.M. (Yerevan Phys. Inst.) ; Greub, C. (Bern U.) ; Hovhannisyan, A. (Yerevan Phys. Inst.) ; Hurth, T. (CERN ; SLAC) ; Poghosyan, V. (Yerevan Phys. Inst.)
The uncertainty of the theoretical prediction of the $\bar B \to X_s \gamma$ branching ratio at NLL level is dominated by the charm mass renormalization scheme ambiguity. In this paper we calculate those NNLL terms which are related to the renormalization of $m_c$, in order to get an estimate of the corresponding uncertainty at the NNLL level. [...]
hep-ph/0505068; SLAC-PUB-11177; CERN-PH-TH-2005-079; CERN-PH-TH-2005-079; SLAC-PUB-11177.- Geneva : CERN, 2005 - 13 p. - Published in : Phys. Lett. B 619 (2005) 322-332 Access to fulltext document: PDF; Fulltext: PDF; External links: Fulltext; SLAC Document Server; SLAC Document Server

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