Evidence for the Decay B[superscript 0] → ωω and Search for B[superscript 0] → ωϕ
We describe searches for B meson decays to the charmless vector-vector final states ωω and ωϕ with 471 × 10[superscript 6]B[bar over B] pairs produced in e[superscript +]e[superscript −] annihilation at √s = 10.58 GeV using the BABAR detector at the PEP-II collider at the SLAC National Accelerator...
| Main Authors: | , , |
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| 其他作者: | |
| 格式: | 文件 |
| 语言: | en_US |
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American Physical Society
2014
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| 在线阅读: | http://hdl.handle.net/1721.1/89004 |
| _version_ | 1826188366297694208 |
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| author | Dujmic, Denis Sciolla, Gabriella Cowan, Ray F |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Dujmic, Denis Sciolla, Gabriella Cowan, Ray F |
| author_sort | Dujmic, Denis |
| collection | MIT |
| description | We describe searches for B meson decays to the charmless vector-vector final states ωω and ωϕ with 471 × 10[superscript 6]B[bar over B] pairs produced in e[superscript +]e[superscript −] annihilation at √s = 10.58 GeV using the BABAR detector at the PEP-II collider at the SLAC National Accelerator Laboratory. We measure the branching fraction B(B[superscript 0] → ωω) = (1.2 ± 0.3[+0.3 over −0.2]) × 10[superscript −6], where the first uncertainty is statistical and the second is systematic, corresponding to a significance of 4.4 standard deviations. We also determine the upper limit B(B[superscript 0] → ωϕ) < 0.7 × 10[superscript −6] at 90% confidence level. These measurements provide the first evidence for the decay B[superscript 0] → ωω, and an improvement of the upper limit for the decay B[superscript 0] → ωϕ. |
| first_indexed | 2024-09-23T07:58:33Z |
| format | Article |
| id | mit-1721.1/89004 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T07:58:33Z |
| publishDate | 2014 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | mit-1721.1/890042023-02-26T07:40:21Z Evidence for the Decay B[superscript 0] → ωω and Search for B[superscript 0] → ωϕ Dujmic, Denis Sciolla, Gabriella Cowan, Ray F Massachusetts Institute of Technology. Department of Physics Massachusetts Institute of Technology. Laboratory for Nuclear Science Cowan, Ray Franklin Dujmic, Denis Sciolla, Gabriella We describe searches for B meson decays to the charmless vector-vector final states ωω and ωϕ with 471 × 10[superscript 6]B[bar over B] pairs produced in e[superscript +]e[superscript −] annihilation at √s = 10.58 GeV using the BABAR detector at the PEP-II collider at the SLAC National Accelerator Laboratory. We measure the branching fraction B(B[superscript 0] → ωω) = (1.2 ± 0.3[+0.3 over −0.2]) × 10[superscript −6], where the first uncertainty is statistical and the second is systematic, corresponding to a significance of 4.4 standard deviations. We also determine the upper limit B(B[superscript 0] → ωϕ) < 0.7 × 10[superscript −6] at 90% confidence level. These measurements provide the first evidence for the decay B[superscript 0] → ωω, and an improvement of the upper limit for the decay B[superscript 0] → ωϕ. United States. Dept. of Energy National Science Foundation (U.S.) Alfred P. Sloan Foundation 2014-08-25T12:56:14Z 2014-08-25T12:56:14Z 2014-03 2013-12 Article http://purl.org/eprint/type/JournalArticle 1550-7998 1550-2368 http://hdl.handle.net/1721.1/89004 Lees, J. P., V. Poireau, V. Tisserand, E. Grauges, A. Palano, G. Eigen, B. Stugu, et al. “Evidence for the Decay B[superscript 0] → ωω and Search for B[superscript 0] → ωϕ.” Phys. Rev. D 89, no. 5 (March 2014). © 2014 American Physical Society en_US http://dx.doi.org/10.1103/PhysRevD.89.051101 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 American Physical Society |
| spellingShingle | Dujmic, Denis Sciolla, Gabriella Cowan, Ray F Evidence for the Decay B[superscript 0] → ωω and Search for B[superscript 0] → ωϕ |
| title | Evidence for the Decay B[superscript 0] → ωω and Search for B[superscript 0] → ωϕ |
| title_full | Evidence for the Decay B[superscript 0] → ωω and Search for B[superscript 0] → ωϕ |
| title_fullStr | Evidence for the Decay B[superscript 0] → ωω and Search for B[superscript 0] → ωϕ |
| title_full_unstemmed | Evidence for the Decay B[superscript 0] → ωω and Search for B[superscript 0] → ωϕ |
| title_short | Evidence for the Decay B[superscript 0] → ωω and Search for B[superscript 0] → ωϕ |
| title_sort | evidence for the decay b superscript 0 ωω and search for b superscript 0 ωϕ |
| url | http://hdl.handle.net/1721.1/89004 |
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