Measurement of B-->X gamma Decays and Determination of |V[subscript td]/V[subscript ts]|
Using a sample of 383×106 B[bar-over B] events collected by the BABAR experiment, we measure sums of seven exclusive final states B→X[subscript d(s)]gamma, where X[subscript d](X[subscript s]) is a nonstrange (strange) charmless hadronic system in the mass range 0.6–1.8 GeV/c[superscript 2]. After...
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| Format: | Article |
| Language: | en_US |
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American Physical Society
2010
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| Online Access: | http://hdl.handle.net/1721.1/54733 https://orcid.org/0000-0002-7586-7253 https://orcid.org/0000-0002-8667-5660 |
| _version_ | 1826213674154459136 |
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| author | Zhao, M. Yamamoto, R. K. Sciolla, Gabriella Dujmic, Denis Taylor, Frank E Spitznagel, Michael A Cowan, Ray F Fisher, Peter H |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Zhao, M. Yamamoto, R. K. Sciolla, Gabriella Dujmic, Denis Taylor, Frank E Spitznagel, Michael A Cowan, Ray F Fisher, Peter H |
| author_sort | Zhao, M. |
| collection | MIT |
| description | Using a sample of 383×106 B[bar-over B] events collected by the BABAR experiment, we measure sums of seven exclusive final states B→X[subscript d(s)]gamma, where X[subscript d](X[subscript s]) is a nonstrange (strange) charmless hadronic system in the mass range 0.6–1.8 GeV/c[superscript 2]. After correcting for unmeasured decay modes in this mass range, we obtain a branching fraction for b-->d gamma of (7.2±2.7(stat)±2.3(syst))×10[superscript -6]. Taking the ratio of X[subscript d] to X[subscript s] we find Gamma(b→dγ)/Gamma(b→sγ)=0.033±0.013(stat)±0.009(syst), from which we determine |V[subscript td]/V[subscript ts]|=0.177±0.043. |
| first_indexed | 2024-09-23T15:53:01Z |
| format | Article |
| id | mit-1721.1/54733 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T15:53:01Z |
| publishDate | 2010 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | mit-1721.1/547332023-02-26T10:53:40Z Measurement of B-->X gamma Decays and Determination of |V[subscript td]/V[subscript ts]| Measurement of B→Xγ Decays and Determination of |Vtd/Vts| Zhao, M. Yamamoto, R. K. Sciolla, Gabriella Dujmic, Denis Taylor, Frank E Spitznagel, Michael A Cowan, Ray F Fisher, Peter H Massachusetts Institute of Technology. Department of Physics Massachusetts Institute of Technology. Laboratory for Nuclear Science Fisher, Peter H. Zhao, M. Yamamoto, R. K. Taylor, Frank E. Spitznagel, M. Sciolla, Gabriella Dujmic, Denis Cowan, Ray Franklin Fisher, Peter H. Using a sample of 383×106 B[bar-over B] events collected by the BABAR experiment, we measure sums of seven exclusive final states B→X[subscript d(s)]gamma, where X[subscript d](X[subscript s]) is a nonstrange (strange) charmless hadronic system in the mass range 0.6–1.8 GeV/c[superscript 2]. After correcting for unmeasured decay modes in this mass range, we obtain a branching fraction for b-->d gamma of (7.2±2.7(stat)±2.3(syst))×10[superscript -6]. Taking the ratio of X[subscript d] to X[subscript s] we find Gamma(b→dγ)/Gamma(b→sγ)=0.033±0.013(stat)±0.009(syst), from which we determine |V[subscript td]/V[subscript ts]|=0.177±0.043. Science and Technology Facilities Council, United Kingdom MEC (Spain) Ministry of Education and Science of the Russian Federation Norges forskningsråd FOM of the Netherlands Istituto Nazionale di Fisica Nucleare of Italy Deutsche Forschungsgemeinschaft Bundesministerium für Bildung und Forschung, Germany Institut National de Physique Nucleaire et Physique des Particules/CNRS Commissariat à l'Energie Atomique Natural Sciences and Engineering Research Council of Canada National Science Foundation United States Department of Energy 2010-05-07T19:52:02Z 2010-05-07T19:52:02Z 2009-04 2008-04 Article http://purl.org/eprint/type/JournalArticle 0031-9007 http://hdl.handle.net/1721.1/54733 BABAR Collaboration et al. “Measurement of B-->X gamma Decays and Determination of |Vtd/Vts|.” Physical Review Letters 102.16 (2009): 161803. © 2009 The American Physical Society. https://orcid.org/0000-0002-7586-7253 https://orcid.org/0000-0002-8667-5660 en_US http://dx.doi.org/10.1103/PhysRevLett.102.161803 Physical Review Letters 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 | Zhao, M. Yamamoto, R. K. Sciolla, Gabriella Dujmic, Denis Taylor, Frank E Spitznagel, Michael A Cowan, Ray F Fisher, Peter H Measurement of B-->X gamma Decays and Determination of |V[subscript td]/V[subscript ts]| |
| title | Measurement of B-->X gamma Decays and Determination of |V[subscript td]/V[subscript ts]| |
| title_full | Measurement of B-->X gamma Decays and Determination of |V[subscript td]/V[subscript ts]| |
| title_fullStr | Measurement of B-->X gamma Decays and Determination of |V[subscript td]/V[subscript ts]| |
| title_full_unstemmed | Measurement of B-->X gamma Decays and Determination of |V[subscript td]/V[subscript ts]| |
| title_short | Measurement of B-->X gamma Decays and Determination of |V[subscript td]/V[subscript ts]| |
| title_sort | measurement of b x gamma decays and determination of v subscript td v subscript ts |
| url | http://hdl.handle.net/1721.1/54733 https://orcid.org/0000-0002-7586-7253 https://orcid.org/0000-0002-8667-5660 |
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