Study of B→Xγ decays and determination of |Vtd/Vts|
Using a sample of 471×10[superscript 6] BB̅ events collected with the BABAR detector, we study the sum of seven exclusive final states B→X[subscript s(d)]γ [gamma], where X[subscript s(d)] is a strange (nonstrange) hadronic system with a mass of up to 2.0 GeV/c[superscript 2]. After correcting for...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | en_US |
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American Physical Society
2011
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| Online Access: | http://hdl.handle.net/1721.1/61336 https://orcid.org/0000-0002-8667-5660 |
| _version_ | 1826198538718019584 |
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| author | Dujmic, Denis Sciolla, Gabriella Fisher, Peter H Cowan, Ray F Zhao, M. |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Dujmic, Denis Sciolla, Gabriella Fisher, Peter H Cowan, Ray F Zhao, M. |
| author_sort | Dujmic, Denis |
| collection | MIT |
| description | Using a sample of 471×10[superscript 6] BB̅ events collected with the BABAR detector, we study the sum of seven exclusive final states B→X[subscript s(d)]γ [gamma], where X[subscript s(d)] is a strange (nonstrange) hadronic system with a mass of up to 2.0 GeV/c[superscript 2]. After correcting for unobserved decay modes, we obtain a branching fraction for b→dγ of (9.2±2.0(stat)±2.3(syst))×10[superscript -6] in this mass range, and a branching fraction for b→sγ of (23.0±0.8(stat)±3.0(syst))×10[superscript -5] in the same mass range. We find B [beta][subscript(b→dγ)]/B[beta][subscript(b→sγ)] =0.040±0.009(stat)±0.010(syst), from which we determine |V[subscript td] /V[subscript ts]|=0.199±0.022(stat)±0.024(syst)±0.002(th). |
| first_indexed | 2024-09-23T11:06:26Z |
| format | Article |
| id | mit-1721.1/61336 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T11:06:26Z |
| publishDate | 2011 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | mit-1721.1/613362023-02-26T04:32:20Z Study of B→Xγ decays and determination of |Vtd/Vts| Study of B→Xγ decays and determination of |V [subscript td] /V [subscript ts] | Dujmic, Denis Sciolla, Gabriella Fisher, Peter H Cowan, Ray F Zhao, M. Massachusetts Institute of Technology. Department of Physics Massachusetts Institute of Technology. Laboratory for Nuclear Science Fisher, Peter H. Fisher, Peter H. Cowan, Ray Franklin Dujmic, Denis Sciolla, Gabriella Zhao, Min Liang Using a sample of 471×10[superscript 6] BB̅ events collected with the BABAR detector, we study the sum of seven exclusive final states B→X[subscript s(d)]γ [gamma], where X[subscript s(d)] is a strange (nonstrange) hadronic system with a mass of up to 2.0 GeV/c[superscript 2]. After correcting for unobserved decay modes, we obtain a branching fraction for b→dγ of (9.2±2.0(stat)±2.3(syst))×10[superscript -6] in this mass range, and a branching fraction for b→sγ of (23.0±0.8(stat)±3.0(syst))×10[superscript -5] in the same mass range. We find B [beta][subscript(b→dγ)]/B[beta][subscript(b→sγ)] =0.040±0.009(stat)±0.010(syst), from which we determine |V[subscript td] /V[subscript ts]|=0.199±0.022(stat)±0.024(syst)±0.002(th). National Science Foundation (U.S.) Alfred P. Sloan Foundation United States. Dept. of Energy United States-Israel Binational Science Foundation 2011-02-24T22:11:38Z 2011-02-24T22:11:38Z 2010-09 2010-05 Article http://purl.org/eprint/type/JournalArticle 1550-7998 1550-2368 http://hdl.handle.net/1721.1/61336 del Amo Sanchez, P. et al. “Study of B→Xγ decays and determination of |V_{td}/V_{ts}|.” Physical Review D 82.5 (2010): n. pag. © 2010 The American Physical Society https://orcid.org/0000-0002-8667-5660 en_US http://dx.doi.org/10.1103/PhysRevD.82.051101 Physical review D Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf American Physical Society APS |
| spellingShingle | Dujmic, Denis Sciolla, Gabriella Fisher, Peter H Cowan, Ray F Zhao, M. Study of B→Xγ decays and determination of |Vtd/Vts| |
| title | Study of B→Xγ decays and determination of |Vtd/Vts| |
| title_full | Study of B→Xγ decays and determination of |Vtd/Vts| |
| title_fullStr | Study of B→Xγ decays and determination of |Vtd/Vts| |
| title_full_unstemmed | Study of B→Xγ decays and determination of |Vtd/Vts| |
| title_short | Study of B→Xγ decays and determination of |Vtd/Vts| |
| title_sort | study of b xγ decays and determination of vtd vts |
| url | http://hdl.handle.net/1721.1/61336 https://orcid.org/0000-0002-8667-5660 |
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