Study of B→Xγ decays and determination of |Vtd/Vts|
Using a sample of 471×106 B¯¯¯B events collected with the BABAR detector, we study the sum of seven exclusive final states B→Xs(d)γ, where Xs(d) is a strange (nonstrange) hadronic system with a mass of up to 2.0 GeV/c2. After correcting for unobserved decay modes, we obtain a branching fraction for...
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| Main Authors: | , , , , |
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| Corporate Author: | |
| Format: | Article (Journal) |
| Language: | English |
| Published: |
10 September 2010
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| In: |
Physical review. D, Particles, fields, gravitation, and cosmology
Year: 2010, Volume: 82, Issue: 5, Pages: 1-8 |
| ISSN: | 1550-2368 |
| DOI: | 10.1103/PhysRevD.82.051101 |
| Online Access: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1103/PhysRevD.82.051101 Verlag, lizenzpflichtig, Volltext: https://link.aps.org/doi/10.1103/PhysRevD.82.051101 
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| Author Notes: | BABAR Collaboration |
| Summary: | Using a sample of 471×106 B¯¯¯B events collected with the BABAR detector, we study the sum of seven exclusive final states B→Xs(d)γ, where Xs(d) is a strange (nonstrange) hadronic system with a mass of up to 2.0 GeV/c2. After correcting for unobserved decay modes, we obtain a branching fraction for b→dγ of (9.2±2.0(stat)±2.3(syst))×10−6 in this mass range, and a branching fraction for b→sγ of (23.0±0.8(stat)±3.0(syst))×10−5 in the same mass range. We find B(b→dγ)B(b→sγ)=0.040±0.009(stat)±0.010(syst), from which we determine |Vtd/Vts|=0.199±0.022(stat)±0.024(syst)±0.002(th). |
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| Item Description: | Im Titel sind "td" und "ts" tiefgestellt BABAR Collaboration: P. del Amo Sanchez, A. Adametz, J. Marks, S. Schenk, U. Uwer [und viele weitere] Gesehen am 25.08.2023 |
| Physical Description: | Online Resource |
| ISSN: | 1550-2368 |
| DOI: | 10.1103/PhysRevD.82.051101 |