Observation of direct CP violation in the measurement of the Cabibbo-Kobayashi-Maskawa angle γ with B[superscript ±]→D[superscript (*)]K[superscript (*)±] decays
We report the determination of the Cabibbo-Kobayashi-Maskawa CP-violating angle γ through the combination of various measurements involving B[superscript ±]→DK[superscript ±], B[superscript ±]→D*K[superscript ±], and B[superscript ±]→DK[*superscript ±] decays performed by the BABAR experiment at the...
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| Format: | Article |
| Language: | en_US |
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American Physical Society
2013
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| Online Access: | http://hdl.handle.net/1721.1/80882 |
| _version_ | 1826217357219987456 |
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| author | Cowan, Ray Franklin Dujmic, Denis Sciolla, Gabriella |
| author2 | Massachusetts Institute of Technology. Laboratory for Nuclear Science |
| author_facet | Massachusetts Institute of Technology. Laboratory for Nuclear Science Cowan, Ray Franklin Dujmic, Denis Sciolla, Gabriella |
| author_sort | Cowan, Ray Franklin |
| collection | MIT |
| description | We report the determination of the Cabibbo-Kobayashi-Maskawa CP-violating angle γ through the combination of various measurements involving B[superscript ±]→DK[superscript ±], B[superscript ±]→D*K[superscript ±], and B[superscript ±]→DK[*superscript ±] decays performed by the BABAR experiment at the PEP-II e+e- collider at SLAC National Accelerator Laboratory. Using up to 474 million BB̅ pairs, we obtain γ=(69[subscript -16]+17)° modulo 180°. The total uncertainty is dominated by the statistical component, with the experimental and amplitude-model systematic uncertainties amounting to ±4°. The corresponding two-standard-deviation region is 41°<γ<102°. This result is inconsistent with γ=0 with a significance of 5.9 standard deviations. |
| first_indexed | 2024-09-23T17:02:22Z |
| format | Article |
| id | mit-1721.1/80882 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T17:02:22Z |
| publishDate | 2013 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | mit-1721.1/808822024-06-26T00:05:08Z Observation of direct CP violation in the measurement of the Cabibbo-Kobayashi-Maskawa angle γ with B[superscript ±]→D[superscript (*)]K[superscript (*)±] decays Cowan, Ray Franklin Dujmic, Denis Sciolla, Gabriella Massachusetts Institute of Technology. Laboratory for Nuclear Science Cowan, Ray Franklin Dujmic, Denis Sciolla, Gabriella We report the determination of the Cabibbo-Kobayashi-Maskawa CP-violating angle γ through the combination of various measurements involving B[superscript ±]→DK[superscript ±], B[superscript ±]→D*K[superscript ±], and B[superscript ±]→DK[*superscript ±] decays performed by the BABAR experiment at the PEP-II e+e- collider at SLAC National Accelerator Laboratory. Using up to 474 million BB̅ pairs, we obtain γ=(69[subscript -16]+17)° modulo 180°. The total uncertainty is dominated by the statistical component, with the experimental and amplitude-model systematic uncertainties amounting to ±4°. The corresponding two-standard-deviation region is 41°<γ<102°. This result is inconsistent with γ=0 with a significance of 5.9 standard deviations. Alfred P. Sloan Foundation United States. Dept. of Energy National Science Foundation (U.S.) 2013-09-24T17:36:49Z 2013-09-24T17:36:49Z 2013-03 2013-01 Article http://purl.org/eprint/type/JournalArticle 1550-7998 1550-2368 http://hdl.handle.net/1721.1/80882 Lees, J. P., V. Poireau, V. Tisserand, E. Grauges, A. Palano, G. Eigen, B. Stugu, et al. “Observation of direct CP violation in the measurement of the Cabibbo-Kobayashi-Maskawa angle γ with B^{±}→D^{(*)}K^{(*)±} decays.” Physical Review D 87, no. 5 (March 2013). © 2013 American Physical Society en_US http://dx.doi.org/10.1103/PhysRevD.87.052015 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 | Cowan, Ray Franklin Dujmic, Denis Sciolla, Gabriella Observation of direct CP violation in the measurement of the Cabibbo-Kobayashi-Maskawa angle γ with B[superscript ±]→D[superscript (*)]K[superscript (*)±] decays |
| title | Observation of direct CP violation in the measurement of the Cabibbo-Kobayashi-Maskawa angle γ with B[superscript ±]→D[superscript (*)]K[superscript (*)±] decays |
| title_full | Observation of direct CP violation in the measurement of the Cabibbo-Kobayashi-Maskawa angle γ with B[superscript ±]→D[superscript (*)]K[superscript (*)±] decays |
| title_fullStr | Observation of direct CP violation in the measurement of the Cabibbo-Kobayashi-Maskawa angle γ with B[superscript ±]→D[superscript (*)]K[superscript (*)±] decays |
| title_full_unstemmed | Observation of direct CP violation in the measurement of the Cabibbo-Kobayashi-Maskawa angle γ with B[superscript ±]→D[superscript (*)]K[superscript (*)±] decays |
| title_short | Observation of direct CP violation in the measurement of the Cabibbo-Kobayashi-Maskawa angle γ with B[superscript ±]→D[superscript (*)]K[superscript (*)±] decays |
| title_sort | observation of direct cp violation in the measurement of the cabibbo kobayashi maskawa angle γ with b superscript d superscript k superscript decays |
| url | http://hdl.handle.net/1721.1/80882 |
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