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Updated NNLO QCD predictions for the weak radiative B-meson decays / Misiak, M. (Warsaw U.) ; Asatrian, H.M. (Yerevan Phys. Inst.) ; Boughezal, R. (Argonne) ; Czakon, M. (RWTH Aachen U.) ; Ewerth, T. (KIT, Karlsruhe, TTP) ; Ferroglia, A. (CUNY, Graduate School - U. Ctr. ; New York City Coll. Tech.) ; Fiedler, P. (RWTH Aachen U.) ; Gambino, P. (INFN, Turin ; Turin U.) ; Greub, C. (U. Bern, AEC ; Bern U.) ; Haisch, U. (CERN ; Oxford U., Theor. Phys.) et al.
We perform an updated analysis of the inclusive weak radiative B-meson decays in the standard model, incorporating all our results for the O(alpha_s^2) and lower-order perturbative corrections that have been calculated after 2006. New estimates of non-perturbative effects are taken into account, too. [...]
arXiv:1503.01789; TTP15-007; SFB-CPP-14-121; SI-HEP-2015-08; QFET-2015-09; TTK-15-09; IFT-2-2015; TTP15-007; SFB-CPP-14-121; SI-HEP-2015-08; QFET-2015-09; TTK-15-09; IFT-2-2015.- 2015-06-02 - 5 p. - Published in : Phys. Rev. Lett. 114 (2015) 221801 APS Open Access article: PDF; Fulltext: PDF; External link: Preprint

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Estimate of $BR(\overline{B} \to X_{s}\gamma)$ at $O(\alpha_{s^2})$ / Misiak, M. (Warsaw U. ; CERN) ; Asatrian, H.M. (Yerevan Phys. Inst.) ; Bieri, K. (Bern U.) ; Czakon, M. (Wurzburg U.) ; Czarnecki, A. (Alberta U.) ; Ewerth, T. (Bern U.) ; Ferroglia, A. (Freiburg U.) ; Gambino, P. (INFN, Turin ; Turin U.) ; Gorbahn, M. (Karlsruhe U., TTP) ; Greub, C. (Bern U.) et al.
Combining our results for various O(alpha_s^2) corrections to the weak radiative B-meson decay, we are able to present the first estimate of the branching ratio at the next-to-next-to-leading order in QCD. We find BR(B -> X_s gamma) = (3.15 +_ 0.23) x 10^-4 for E_gamma > 1.6 GeV in the B-meson rest frame. [...]
hep-ph/0609232; IFT-18-2006; CERN-PH-TH-2006-184; YERPHI-1608-6; FREIBURG-THEP-06-13; DFTT-20-2006; SFB-CPP-06-45; TTP06-26; ZU-TH-22-06; SLAC-PUB-12117; DESY-06-168; DESY-06-168; DESY-2006-168; CERN-PH-TH-2006-184; IFT-2006-18; YERPHI-1608-6; Freiburg-THEP-2006-13; DFTT-20-2006; SFB-CPP-2006-45.- Hamburg : DESY, 2007 - 4 p. - Published in : Phys. Rev. Lett. 98 (2007) 022002 APS Published version, local copy: PDF; Fulltext: arXiv:hep-ph_0609232 - PDF; 0609232 - PDF; External links: Fulltext; SLAC Document Server

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NNLL QCD contribution of the electromagnetic dipole operator to Gamma(anti-B ---> X(s) gamma) / Asatrian, H.M. (Yerevan Phys. Inst.) ; Hovhannisyan, A. (Yerevan Phys. Inst.) ; Poghosyan, V. (Yerevan Phys. Inst.) ; Ewerth, T. (Bern U.) ; Greub, C. (Bern U.) ; Hurth, T. (CERN ; SLAC)
We present an independent calculation of that part of the O(\alpha_s^2) contribution to the decay width \Gamma(\bar B -> X_s \gamma) which arises from the self-interference term of the electromagnetic dipole operator O_7. Using a different method, we find complete agreement with a previous calculation. [...]
hep-ph/0605009; SLAC-PUB-11841; CERN-PH-TH-2006-074; CERN-PH-TH-2006-074; SLAC-PUB-11841.- Geneva : CERN, 2006 - 15 p. - Published in : Nucl. Phys. B 749 (2006) 325-337 Access to fulltext document: PDF; Fulltext: PDF; External links: Fulltext; SLAC Document Server

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似た著者名：
9	Ewerth, T
4	Ewerth, Thorsten

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