Estimate of B(B(over) -->Xgamma) at O(alpha(s)2).
Combining our results for various O(alpha[s]) 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 B(B[over ]-->X[s]gamma)=(3.15+/-0.23) x 10(-4) for Egamma>1.6 GeV in the...
| Main Authors: | , , , , , , , , , , , , , , , , |
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| Format: | Journal article |
| Language: | English |
| Published: |
2007
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| _version_ | 1797072398109900800 |
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| author | Misiak, M Asatrian, H Bieri, K Czakon, M Czarnecki, A Ewerth, T Ferroglia, A Gambino, P Gorbahn, M Greub, C Haisch, U Hovhannisyan, A Hurth, T Mitov, A Poghosyan, V Slusarczyk, M Steinhauser, M |
| author_facet | Misiak, M Asatrian, H Bieri, K Czakon, M Czarnecki, A Ewerth, T Ferroglia, A Gambino, P Gorbahn, M Greub, C Haisch, U Hovhannisyan, A Hurth, T Mitov, A Poghosyan, V Slusarczyk, M Steinhauser, M |
| author_sort | Misiak, M |
| collection | OXFORD |
| description | Combining our results for various O(alpha[s]) 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 B(B[over ]-->X[s]gamma)=(3.15+/-0.23) x 10(-4) for Egamma>1.6 GeV in the B[over ]-meson rest frame. The four types of uncertainties:nonperturbative (5%), parametric (3%), higher-order (3%), and m(c)-interpolation ambiguity (3%) have been added in quadrature to obtain the total error. |
| first_indexed | 2024-03-06T23:07:10Z |
| format | Journal article |
| id | oxford-uuid:643f52bd-56fc-46d8-a446-9832c3a7e388 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T23:07:10Z |
| publishDate | 2007 |
| record_format | dspace |
| spelling | oxford-uuid:643f52bd-56fc-46d8-a446-9832c3a7e3882022-03-26T18:17:43ZEstimate of B(B(over) -->Xgamma) at O(alpha(s)2).Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:643f52bd-56fc-46d8-a446-9832c3a7e388EnglishSymplectic Elements at Oxford2007Misiak, MAsatrian, HBieri, KCzakon, MCzarnecki, AEwerth, TFerroglia, AGambino, PGorbahn, MGreub, CHaisch, UHovhannisyan, AHurth, TMitov, APoghosyan, VSlusarczyk, MSteinhauser, MCombining our results for various O(alpha[s]) 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 B(B[over ]-->X[s]gamma)=(3.15+/-0.23) x 10(-4) for Egamma>1.6 GeV in the B[over ]-meson rest frame. The four types of uncertainties:nonperturbative (5%), parametric (3%), higher-order (3%), and m(c)-interpolation ambiguity (3%) have been added in quadrature to obtain the total error. |
| spellingShingle | Misiak, M Asatrian, H Bieri, K Czakon, M Czarnecki, A Ewerth, T Ferroglia, A Gambino, P Gorbahn, M Greub, C Haisch, U Hovhannisyan, A Hurth, T Mitov, A Poghosyan, V Slusarczyk, M Steinhauser, M Estimate of B(B(over) -->Xgamma) at O(alpha(s)2). |
| title | Estimate of B(B(over) -->Xgamma) at O(alpha(s)2). |
| title_full | Estimate of B(B(over) -->Xgamma) at O(alpha(s)2). |
| title_fullStr | Estimate of B(B(over) -->Xgamma) at O(alpha(s)2). |
| title_full_unstemmed | Estimate of B(B(over) -->Xgamma) at O(alpha(s)2). |
| title_short | Estimate of B(B(over) -->Xgamma) at O(alpha(s)2). |
| title_sort | estimate of b b over gt xgamma at o alpha s 2 |
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