Bound on the Ratio of Decay Amplitudes for B̅[superscript 0]→J/ψK[superscript *0] and B[superscript 0]→J/ψ[superscript *0]
We have measured the time-dependent decay rate for the process B→J/ψK[superscript *0](892) in a sample of about 88×10[superscript 6] Υ(4S)→BB̅ decays collected with the BABAR detector at the PEP-II asymmetric-energy B factory at SLAC. In this sample we study flavor-tagged events in which one neutral...
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| Format: | Article |
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American Physical Society
2012
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| Online Access: | http://hdl.handle.net/1721.1/70881 https://orcid.org/0000-0002-7586-7253 |
| _version_ | 1826202698168401920 |
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| author | Sciolla, Gabriella Yamamoto, R. K. Cowan, Ray F Taylor, Frank E |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Sciolla, Gabriella Yamamoto, R. K. Cowan, Ray F Taylor, Frank E |
| author_sort | Sciolla, Gabriella |
| collection | MIT |
| description | We have measured the time-dependent decay rate for the process B→J/ψK[superscript *0](892) in a sample of about 88×10[superscript 6] Υ(4S)→BB̅ decays collected with the BABAR detector at the PEP-II asymmetric-energy B factory at SLAC. In this sample we study flavor-tagged events in which one neutral B meson is reconstructed in the J/ψK[superscript *0] or J/ψK̅[superscript *0] final state. We measure the coefficients of the cosine and sine terms in the time-dependent asymmetries for J/ψK[superscript *0] and J/ψK̅[superscript *0], find them to be consistent with the standard model expectations, and set upper limits at 90% confidence level (C.L.) on the decay amplitude ratios |A(B̅[superscript 0]→J/ψK[superscript *0])|/|A(B[superscript 0]→J/ψK[superscript *0])|<0.26 and |A(B[superscript 0]→J/ψK̅[superscript *0])|/|A(B̅[superscript 0]→J/ψK̅[superscript *0])|<0.32. For a single ratio of wrong-flavor to favored amplitudes for B[superscript 0] and B̅[superscript 0] combined, we obtain an upper limit of 0.25 at 90% C.L. |
| first_indexed | 2024-09-23T12:13:50Z |
| format | Article |
| id | mit-1721.1/70881 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T12:13:50Z |
| publishDate | 2012 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | mit-1721.1/708812023-02-26T08:25:21Z Bound on the Ratio of Decay Amplitudes for B̅[superscript 0]→J/ψK[superscript *0] and B[superscript 0]→J/ψ[superscript *0] Bound on the Ratio of Decay Amplitudes for B̅ 0→J/ψK*0 and B0→J/ψK*0 Sciolla, Gabriella Yamamoto, R. K. Cowan, Ray F Taylor, Frank E Massachusetts Institute of Technology. Department of Physics Massachusetts Institute of Technology. Laboratory for Nuclear Science Sciolla, Gabriella Cowan, Ray Franklin Sciolla, Gabriella Taylor, Frank E. Yamamoto, R. K. We have measured the time-dependent decay rate for the process B→J/ψK[superscript *0](892) in a sample of about 88×10[superscript 6] Υ(4S)→BB̅ decays collected with the BABAR detector at the PEP-II asymmetric-energy B factory at SLAC. In this sample we study flavor-tagged events in which one neutral B meson is reconstructed in the J/ψK[superscript *0] or J/ψK̅[superscript *0] final state. We measure the coefficients of the cosine and sine terms in the time-dependent asymmetries for J/ψK[superscript *0] and J/ψK̅[superscript *0], find them to be consistent with the standard model expectations, and set upper limits at 90% confidence level (C.L.) on the decay amplitude ratios |A(B̅[superscript 0]→J/ψK[superscript *0])|/|A(B[superscript 0]→J/ψK[superscript *0])|<0.26 and |A(B[superscript 0]→J/ψK̅[superscript *0])|/|A(B̅[superscript 0]→J/ψK̅[superscript *0])|<0.32. For a single ratio of wrong-flavor to favored amplitudes for B[superscript 0] and B̅[superscript 0] combined, we obtain an upper limit of 0.25 at 90% C.L. United States. Dept. of Energy National Science Foundation (U.S.) Alfred P. Sloan Foundation Alexander von Humboldt-Stiftung Research Corporation 2012-05-18T18:07:44Z 2012-05-18T18:07:44Z 2004-08 2004-04 Article http://purl.org/eprint/type/JournalArticle 0031-9007 1079-7114 http://hdl.handle.net/1721.1/70881 Aubert, B. et al. “Bound on the Ratio of Decay Amplitudes for B¯0→J/ψK*0 and B0→J/ψK*0.” Physical Review Letters 93.8 (2004): Web. 18 May 2012. © 2004 American Physical Society https://orcid.org/0000-0002-7586-7253 en_US http://dx.doi.org/10.1103/PhysRevLett.93.081801 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 | Sciolla, Gabriella Yamamoto, R. K. Cowan, Ray F Taylor, Frank E Bound on the Ratio of Decay Amplitudes for B̅[superscript 0]→J/ψK[superscript *0] and B[superscript 0]→J/ψ[superscript *0] |
| title | Bound on the Ratio of Decay Amplitudes for B̅[superscript 0]→J/ψK[superscript *0] and B[superscript 0]→J/ψ[superscript *0] |
| title_full | Bound on the Ratio of Decay Amplitudes for B̅[superscript 0]→J/ψK[superscript *0] and B[superscript 0]→J/ψ[superscript *0] |
| title_fullStr | Bound on the Ratio of Decay Amplitudes for B̅[superscript 0]→J/ψK[superscript *0] and B[superscript 0]→J/ψ[superscript *0] |
| title_full_unstemmed | Bound on the Ratio of Decay Amplitudes for B̅[superscript 0]→J/ψK[superscript *0] and B[superscript 0]→J/ψ[superscript *0] |
| title_short | Bound on the Ratio of Decay Amplitudes for B̅[superscript 0]→J/ψK[superscript *0] and B[superscript 0]→J/ψ[superscript *0] |
| title_sort | bound on the ratio of decay amplitudes for b superscript 0 j ψk superscript 0 and b superscript 0 j ψ superscript 0 |
| url | http://hdl.handle.net/1721.1/70881 https://orcid.org/0000-0002-7586-7253 |
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