Evidence for the Charmless Annihilation Decay Mode B[subscript s][superscript 0]→π[superscript +]π[superscript -]
We search for annihilation decay modes of neutral b mesons into pairs of charmless charged hadrons with the upgraded Collider Detector at the Fermilab Tevatron. Using a data sample corresponding to 6 fb[superscript -1] of integrated luminosity, we obtain the first evidence for the B[subscript s][su...
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| Materiálatiipa: | Artihkal |
| Giella: | en_US |
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American Physical Society
2012
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| Liŋkkat: | http://hdl.handle.net/1721.1/71688 https://orcid.org/0000-0002-6047-4211 |
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| author | Gomez-Ceballos, Guillelmo Goncharov, Maxim Paus, Christoph M. E. |
| 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. |
| author_sort | Gomez-Ceballos, Guillelmo |
| collection | MIT |
| description | We search for annihilation decay modes of neutral b mesons into pairs of charmless charged hadrons with the upgraded Collider Detector at the Fermilab Tevatron. Using a data sample corresponding to 6 fb[superscript -1] of integrated luminosity, we obtain the first evidence for the B[subscript s][superscript 0]→π[superscript +]π[superscript -] decay, with a significance of 3.7σ, and a measured branching ratio B(B[subscript s][superscript 0]→π[superscript +]π[superscript -])=(0.57±0.15(stat)±0.10(syst))×10[superscript -6]. A search for the B[superscript 0]→K[superscript +]K[superscript -] mode in the same sample yields a significance of 2.0σ, and a central value estimate B(B[superscript 0]→K[superscript +]K[superscript -])=(0.23±0.10(stat)±0.10(syst))×10[superscript -6]. |
| first_indexed | 2024-09-23T11:48:18Z |
| format | Article |
| id | mit-1721.1/71688 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T11:48:18Z |
| publishDate | 2012 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | mit-1721.1/716882022-09-27T22:02:04Z Evidence for the Charmless Annihilation Decay Mode B[subscript s][superscript 0]→π[superscript +]π[superscript -] Gomez-Ceballos, Guillelmo Goncharov, Maxim Paus, Christoph M. E. Massachusetts Institute of Technology. Department of Physics Massachusetts Institute of Technology. Laboratory for Nuclear Science Gomez-Ceballos, Guillelmo Gomez-Ceballos, Guillelmo Goncharov, Maxim Paus, Christoph M. E. We search for annihilation decay modes of neutral b mesons into pairs of charmless charged hadrons with the upgraded Collider Detector at the Fermilab Tevatron. Using a data sample corresponding to 6 fb[superscript -1] of integrated luminosity, we obtain the first evidence for the B[subscript s][superscript 0]→π[superscript +]π[superscript -] decay, with a significance of 3.7σ, and a measured branching ratio B(B[subscript s][superscript 0]→π[superscript +]π[superscript -])=(0.57±0.15(stat)±0.10(syst))×10[superscript -6]. A search for the B[superscript 0]→K[superscript +]K[superscript -] mode in the same sample yields a significance of 2.0σ, and a central value estimate B(B[superscript 0]→K[superscript +]K[superscript -])=(0.23±0.10(stat)±0.10(syst))×10[superscript -6]. 2012-07-18T18:34:28Z 2012-07-18T18:34:28Z 2012-05 2011-11 Article http://purl.org/eprint/type/JournalArticle 0031-9007 1079-7114 http://hdl.handle.net/1721.1/71688 T. Aaltonen et al. "Evidence for the Charmless Annihilation Decay Mode B[subscript s][superscript 0]→π[superscript +]π[superscript -]" Physical Review Letters 108, 211803 (2012). © 2012 American Physical Society https://orcid.org/0000-0002-6047-4211 en_US http://dx.doi.org/10.1103/PhysRevLett.108.211803 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 | Gomez-Ceballos, Guillelmo Goncharov, Maxim Paus, Christoph M. E. Evidence for the Charmless Annihilation Decay Mode B[subscript s][superscript 0]→π[superscript +]π[superscript -] |
| title | Evidence for the Charmless Annihilation Decay Mode B[subscript s][superscript 0]→π[superscript +]π[superscript -] |
| title_full | Evidence for the Charmless Annihilation Decay Mode B[subscript s][superscript 0]→π[superscript +]π[superscript -] |
| title_fullStr | Evidence for the Charmless Annihilation Decay Mode B[subscript s][superscript 0]→π[superscript +]π[superscript -] |
| title_full_unstemmed | Evidence for the Charmless Annihilation Decay Mode B[subscript s][superscript 0]→π[superscript +]π[superscript -] |
| title_short | Evidence for the Charmless Annihilation Decay Mode B[subscript s][superscript 0]→π[superscript +]π[superscript -] |
| title_sort | evidence for the charmless annihilation decay mode b subscript s superscript 0 π superscript π superscript |
| url | http://hdl.handle.net/1721.1/71688 https://orcid.org/0000-0002-6047-4211 |
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