Measurement of Polarization and Search for CP Violation in Bs0→ϕϕ Decays
We present the first measurement of polarization and CP-violating asymmetries in a B[subscript s][superscript 0] decay into two light vector mesons, B[subscript s][superscript 0]→ϕϕ, and an improved determination of its branching ratio using 295 decays reconstructed in a data sample corresponding to...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | en_US |
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American Physical Society (APS)
2012
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| Online Access: | http://hdl.handle.net/1721.1/69192 https://orcid.org/0000-0002-6047-4211 |
| _version_ | 1826199904321536000 |
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| author | Gomez-Ceballos, Guillelmo Goncharov, Maxim Paus, Christoph M. E. Bauer, Gerry P Makhoul, Khaldoun |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Gomez-Ceballos, Guillelmo Goncharov, Maxim Paus, Christoph M. E. Bauer, Gerry P Makhoul, Khaldoun |
| author_sort | Gomez-Ceballos, Guillelmo |
| collection | MIT |
| description | We present the first measurement of polarization and CP-violating asymmetries in a B[subscript s][superscript 0] decay into two light vector mesons, B[subscript s][superscript 0]→ϕϕ, and an improved determination of its branching ratio using 295 decays reconstructed in a data sample corresponding to 2.9 fb[superscript -1] of integrated luminosity collected by the CDF experiment at the Fermilab Tevatron collider. The fraction of longitudinal polarization is determined to be f[subscript L]=0.348±0.041(stat)±0.021(syst), and the branching ratio B(B[subscript s][superscript 0]→ϕϕ)=[2.32±0.18(stat)±0.82(syst)]×10[superscript -5]. Asymmetries of decay angle distributions sensitive to CP violation are measured to be A[subscript u]=-0.007±0.064(stat)±0.018(syst) and A[subscript v]=-0.120±0.064(stat)±0.016(syst). |
| first_indexed | 2024-09-23T11:27:39Z |
| format | Article |
| id | mit-1721.1/69192 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T11:27:39Z |
| publishDate | 2012 |
| publisher | American Physical Society (APS) |
| record_format | dspace |
| spelling | mit-1721.1/691922023-02-26T06:03:29Z Measurement of Polarization and Search for CP Violation in Bs0→ϕϕ Decays Gomez-Ceballos, Guillelmo Goncharov, Maxim Paus, Christoph M. E. Bauer, Gerry P Makhoul, Khaldoun Massachusetts Institute of Technology. Department of Physics Massachusetts Institute of Technology. Laboratory for Nuclear Science Bauer, Gerry P. Bauer, Gerry P. Gomez-Ceballos, Guillelmo Goncharov, Maxim Makhoul, K. Paus, Christoph M. E. We present the first measurement of polarization and CP-violating asymmetries in a B[subscript s][superscript 0] decay into two light vector mesons, B[subscript s][superscript 0]→ϕϕ, and an improved determination of its branching ratio using 295 decays reconstructed in a data sample corresponding to 2.9 fb[superscript -1] of integrated luminosity collected by the CDF experiment at the Fermilab Tevatron collider. The fraction of longitudinal polarization is determined to be f[subscript L]=0.348±0.041(stat)±0.021(syst), and the branching ratio B(B[subscript s][superscript 0]→ϕϕ)=[2.32±0.18(stat)±0.82(syst)]×10[superscript -5]. Asymmetries of decay angle distributions sensitive to CP violation are measured to be A[subscript u]=-0.007±0.064(stat)±0.018(syst) and A[subscript v]=-0.120±0.064(stat)±0.016(syst). Alfred P. Sloan Foundation United States. Dept. of Energy National Science Foundation (U.S.) 2012-02-24T16:55:27Z 2012-02-24T16:55:27Z 2011-12 2011-07 Article http://purl.org/eprint/type/JournalArticle 0031-9007 1079-7114 http://hdl.handle.net/1721.1/69192 Aaltonen, T. et al. “Measurement of Polarization and Search for CP Violation in B_{s}^{0}→ϕϕ Decays.” Physical Review Letters 107.26 (2011): n. pag. Web. 24 Feb. 2012. © 2011 American Physical Society https://orcid.org/0000-0002-6047-4211 en_US http://dx.doi.org/10.1103/PhysRevLett.107.261802 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) APS |
| spellingShingle | Gomez-Ceballos, Guillelmo Goncharov, Maxim Paus, Christoph M. E. Bauer, Gerry P Makhoul, Khaldoun Measurement of Polarization and Search for CP Violation in Bs0→ϕϕ Decays |
| title | Measurement of Polarization and Search for CP Violation in Bs0→ϕϕ Decays |
| title_full | Measurement of Polarization and Search for CP Violation in Bs0→ϕϕ Decays |
| title_fullStr | Measurement of Polarization and Search for CP Violation in Bs0→ϕϕ Decays |
| title_full_unstemmed | Measurement of Polarization and Search for CP Violation in Bs0→ϕϕ Decays |
| title_short | Measurement of Polarization and Search for CP Violation in Bs0→ϕϕ Decays |
| title_sort | measurement of polarization and search for cp violation in bs0 ϕϕ decays |
| url | http://hdl.handle.net/1721.1/69192 https://orcid.org/0000-0002-6047-4211 |
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