Measurement of the Bottom-Strange Meson Mixing Phase in the Full CDF Data Set
We report a measurement of the bottom-strange meson mixing phase βs using the time evolution of B[subscript s][superscript 0]→J/ψ(→μ[superscript +]μ[superscript -])ϕ(→K[superscript +]K[superscript -]) decays in which the quark-flavor content of the bottom-strange meson is identified at production. T...
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| Format: | Article |
| Language: | en_US |
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American Physical Society
2013
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| Online Access: | http://hdl.handle.net/1721.1/76228 https://orcid.org/0000-0002-6047-4211 |
| _version_ | 1826210929160749056 |
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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 report a measurement of the bottom-strange meson mixing phase βs using the time evolution of B[subscript s][superscript 0]→J/ψ(→μ[superscript +]μ[superscript -])ϕ(→K[superscript +]K[superscript -]) decays in which the quark-flavor content of the bottom-strange meson is identified at production. This measurement uses the full data set of proton-antiproton collisions at √s=1.96 TeV collected by the Collider Detector experiment at the Fermilab Tevatron, corresponding to 9.6 fb[superscript -1] of integrated luminosity. We report confidence regions in the two-dimensional space of β[subscript s] and the B[subscript s][superscript 0] decay-width difference ΔΓ[subscript s] and measure β[subscript s]∈[-π/2,-1.51]∪[-0.06,0.30]∪[1.26,π/2] at the 68% confidence level, in agreement with the standard model expectation. Assuming the standard model value of β[subscript s,] we also determine ΔΓ[subscript s]=0.068±0.026(stat)±0.009(syst) ps[superscript -1] and the mean B[subscript s][superscript 0] lifetime τs=1.528±0.019(stat)±0.009(syst) ps, which are consistent and competitive with determinations by other experiments. |
| first_indexed | 2024-09-23T14:58:00Z |
| format | Article |
| id | mit-1721.1/76228 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T14:58:00Z |
| publishDate | 2013 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | mit-1721.1/762282022-10-01T23:37:33Z Measurement of the Bottom-Strange Meson Mixing Phase in the Full CDF Data Set 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 Goncharov, Maxim Paus, Christoph M. E. We report a measurement of the bottom-strange meson mixing phase βs using the time evolution of B[subscript s][superscript 0]→J/ψ(→μ[superscript +]μ[superscript -])ϕ(→K[superscript +]K[superscript -]) decays in which the quark-flavor content of the bottom-strange meson is identified at production. This measurement uses the full data set of proton-antiproton collisions at √s=1.96 TeV collected by the Collider Detector experiment at the Fermilab Tevatron, corresponding to 9.6 fb[superscript -1] of integrated luminosity. We report confidence regions in the two-dimensional space of β[subscript s] and the B[subscript s][superscript 0] decay-width difference ΔΓ[subscript s] and measure β[subscript s]∈[-π/2,-1.51]∪[-0.06,0.30]∪[1.26,π/2] at the 68% confidence level, in agreement with the standard model expectation. Assuming the standard model value of β[subscript s,] we also determine ΔΓ[subscript s]=0.068±0.026(stat)±0.009(syst) ps[superscript -1] and the mean B[subscript s][superscript 0] lifetime τs=1.528±0.019(stat)±0.009(syst) ps, which are consistent and competitive with determinations by other experiments. 2013-01-09T20:53:57Z 2013-01-09T20:53:57Z 2012-10 2012-08 Article http://purl.org/eprint/type/JournalArticle 0031-9007 1079-7114 http://hdl.handle.net/1721.1/76228 Aaltonen, T. et al. “Measurement of the Bottom-Strange Meson Mixing Phase in the Full CDF Data Set.” Physical Review Letters 109.17 (2012). © 2012 American Physical Society https://orcid.org/0000-0002-6047-4211 en_US http://dx.doi.org/10.1103/PhysRevLett.109.171802 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. Measurement of the Bottom-Strange Meson Mixing Phase in the Full CDF Data Set |
| title | Measurement of the Bottom-Strange Meson Mixing Phase in the Full CDF Data Set |
| title_full | Measurement of the Bottom-Strange Meson Mixing Phase in the Full CDF Data Set |
| title_fullStr | Measurement of the Bottom-Strange Meson Mixing Phase in the Full CDF Data Set |
| title_full_unstemmed | Measurement of the Bottom-Strange Meson Mixing Phase in the Full CDF Data Set |
| title_short | Measurement of the Bottom-Strange Meson Mixing Phase in the Full CDF Data Set |
| title_sort | measurement of the bottom strange meson mixing phase in the full cdf data set |
| url | http://hdl.handle.net/1721.1/76228 https://orcid.org/0000-0002-6047-4211 |
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