Study of B[superscript ±]→J/ψπ[superscript ±] and B[superscript ±]→J/ψK[superscript ±] Decays: Measurement of the Ratio of Branching Fractions and Search for Direct CP Violation
We study B[superscript ±]→J/ψπ[superscript ±] and B[superscript ±]→J/ψK[superscript ±] decays in a sample of about 89×10[superscript 6] BB̅ pairs collected with the BABAR detector at the PEP-II asymmetric B factory at SLAC. We observe a signal of 244±20 B[superscript ±]→J/ψπ[superscript ±] events an...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | en_US |
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American Physical Society
2012
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| Online Access: | http://hdl.handle.net/1721.1/70886 https://orcid.org/0000-0002-7586-7253 |
| _version_ | 1826208650514923520 |
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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 study B[superscript ±]→J/ψπ[superscript ±] and B[superscript ±]→J/ψK[superscript ±] decays in a sample of about 89×10[superscript 6] BB̅ pairs collected with the BABAR detector at the PEP-II asymmetric B factory at SLAC. We observe a signal of 244±20 B[superscript ±]→J/ψπ[superscript ±] events and determine the ratio B(B[superscript ±]→J/ψπ[superscript ±])/B(B[superscript ±]→J/ψK±) to be [5.37±0.45(stat)±0.11(syst)]%. The charge asymmetries for the B[superscript ±]→J/ψπ[superscript ±] and B[superscript ±]→J/ψ[superscript ±] decays are determined to be A[subscript π]=0.123±0.085(stat)±0.004(syst) and A[subscript K]=0.030±0.015(stat)±0.006(syst), respectively. |
| first_indexed | 2024-09-23T14:09:16Z |
| format | Article |
| id | mit-1721.1/70886 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T14:09:16Z |
| publishDate | 2012 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | mit-1721.1/708862023-02-26T08:03:53Z Study of B[superscript ±]→J/ψπ[superscript ±] and B[superscript ±]→J/ψK[superscript ±] Decays: Measurement of the Ratio of Branching Fractions and Search for Direct CP Violation Study of B±→J/ψπ± and B±→J/ψK± Decays: Measurement of the Ratio of Branching Fractions and Search for Direct CP Violation 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 study B[superscript ±]→J/ψπ[superscript ±] and B[superscript ±]→J/ψK[superscript ±] decays in a sample of about 89×10[superscript 6] BB̅ pairs collected with the BABAR detector at the PEP-II asymmetric B factory at SLAC. We observe a signal of 244±20 B[superscript ±]→J/ψπ[superscript ±] events and determine the ratio B(B[superscript ±]→J/ψπ[superscript ±])/B(B[superscript ±]→J/ψK±) to be [5.37±0.45(stat)±0.11(syst)]%. The charge asymmetries for the B[superscript ±]→J/ψπ[superscript ±] and B[superscript ±]→J/ψ[superscript ±] decays are determined to be A[subscript π]=0.123±0.085(stat)±0.004(syst) and A[subscript K]=0.030±0.015(stat)±0.006(syst), respectively. United States. Dept. of Energy National Science Foundation (U.S.) Alfred P. Sloan Foundation Alexander von Humboldt-Stiftung Research Corporation 2012-05-18T20:48:07Z 2012-05-18T20:48:07Z 2004-06 2004-01 Article http://purl.org/eprint/type/JournalArticle 0031-9007 1079-7114 http://hdl.handle.net/1721.1/70886 Aubert, B. et al. “Study of B±→J/ψπ± and B±→J/ψK± Decays: Measurement of the Ratio of Branching Fractions and Search for Direct CP Violation.” Physical Review Letters 92.24 (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.92.241802 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 Study of B[superscript ±]→J/ψπ[superscript ±] and B[superscript ±]→J/ψK[superscript ±] Decays: Measurement of the Ratio of Branching Fractions and Search for Direct CP Violation |
| title | Study of B[superscript ±]→J/ψπ[superscript ±] and B[superscript ±]→J/ψK[superscript ±] Decays: Measurement of the Ratio of Branching Fractions and Search for Direct CP Violation |
| title_full | Study of B[superscript ±]→J/ψπ[superscript ±] and B[superscript ±]→J/ψK[superscript ±] Decays: Measurement of the Ratio of Branching Fractions and Search for Direct CP Violation |
| title_fullStr | Study of B[superscript ±]→J/ψπ[superscript ±] and B[superscript ±]→J/ψK[superscript ±] Decays: Measurement of the Ratio of Branching Fractions and Search for Direct CP Violation |
| title_full_unstemmed | Study of B[superscript ±]→J/ψπ[superscript ±] and B[superscript ±]→J/ψK[superscript ±] Decays: Measurement of the Ratio of Branching Fractions and Search for Direct CP Violation |
| title_short | Study of B[superscript ±]→J/ψπ[superscript ±] and B[superscript ±]→J/ψK[superscript ±] Decays: Measurement of the Ratio of Branching Fractions and Search for Direct CP Violation |
| title_sort | study of b superscript j ψπ superscript and b superscript j ψk superscript decays measurement of the ratio of branching fractions and search for direct cp violation |
| url | http://hdl.handle.net/1721.1/70886 https://orcid.org/0000-0002-7586-7253 |
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