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1826198480350085120
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Massachusetts Institute of Technology. Department of Physics
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Massachusetts Institute of Technology. Department of Physics
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MIT
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A search for B[superscript +] → D[subscript s][superscript +] K[superscript +] K [superscript −] decays is performed using pp collision data corresponding to an integrated luminosity of 4.8 fb[superscript −1], collected at centre-of-mass energies of 7, 8 and 13 TeV with the LHCb experiment. A significant signal is observed for the first time and the branching fraction is determined to be B(B[superscript +] → D[superscript +][subscript s] K[superscript +]K[superscript −]) = (7.1 ± 0.5 ± 0.6 ± 0.7) × 10[superscript −6], where the first uncertainty is statistical, the second systematic and the third due to the uncertainty on the branching fraction of the normalisation mode B[superscript +] → D[superscript +][subscript s][bar over D][superscript 0]. A search is also performed for the pure annihilation decay B[superscript +] → D[superscript +][subscript s] φ. No significant signal is
observed and a limit of B(B[superscript +] → D[superscript +][subscript s] φ < 4.9 × 10{superscript −7] (4.2 × 10[superscript −7]) is set on the branching fraction at 95% (90%) confidence level. Keywords: B physics, Branching fraction, Hadron-Hadron scattering (experiments), Rare decay
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2024-09-23T11:05:37Z
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Article
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mit-1721.1/116530
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Massachusetts Institute of Technology
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2024-09-23T11:05:37Z
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2018
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Springer/SISSA
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dspace
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mit-1721.1/1165302024-06-28T14:44:03Z First Observation of B[superscript +] → D[subscript s][superscript +]K][superscript +]K[superscript −] Decays and a Search for B[superscript +] → D[subscript s][superscript +]ϕ Decays Massachusetts Institute of Technology. Department of Physics A search for B[superscript +] → D[subscript s][superscript +] K[superscript +] K [superscript −] decays is performed using pp collision data corresponding to an integrated luminosity of 4.8 fb[superscript −1], collected at centre-of-mass energies of 7, 8 and 13 TeV with the LHCb experiment. A significant signal is observed for the first time and the branching fraction is determined to be B(B[superscript +] → D[superscript +][subscript s] K[superscript +]K[superscript −]) = (7.1 ± 0.5 ± 0.6 ± 0.7) × 10[superscript −6], where the first uncertainty is statistical, the second systematic and the third due to the uncertainty on the branching fraction of the normalisation mode B[superscript +] → D[superscript +][subscript s][bar over D][superscript 0]. A search is also performed for the pure annihilation decay B[superscript +] → D[superscript +][subscript s] φ. No significant signal is observed and a limit of B(B[superscript +] → D[superscript +][subscript s] φ < 4.9 × 10{superscript −7] (4.2 × 10[superscript −7]) is set on the branching fraction at 95% (90%) confidence level. Keywords: B physics, Branching fraction, Hadron-Hadron scattering (experiments), Rare decay National Science Foundation (U.S.) 2018-06-22T18:09:31Z 2018-06-22T18:09:31Z 2018-01 2017-11 2018-03-12T14:25:20Z Article http://purl.org/eprint/type/JournalArticle 1029-8479 http://hdl.handle.net/1721.1/116530 The LHCb collaboration, et al. “First Observation of B[superscript +] → D[subscript s][superscript +]K][superscript +]K[superscript −] Decays and a Search for B[superscript +] → D[subscript s][superscript +]ϕ Decays.” Journal of High Energy Physics, vol. 2018, no. 1, Jan. 2018. http://dx.doi.org/10.1007/JHEP01(2018)131 Journal of High Energy Physics Creative Commons Attribution http://creativecommons.org/licenses/by/4.0/ The Author(s) application/pdf Springer/SISSA TopicHub SCOAP3
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| spellingShingle |
First Observation of B[superscript +] → D[subscript s][superscript +]K][superscript +]K[superscript −] Decays and a Search for B[superscript +] → D[subscript s][superscript +]ϕ Decays
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| title |
First Observation of B[superscript +] → D[subscript s][superscript +]K][superscript +]K[superscript −] Decays and a Search for B[superscript +] → D[subscript s][superscript +]ϕ Decays
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| title_full |
First Observation of B[superscript +] → D[subscript s][superscript +]K][superscript +]K[superscript −] Decays and a Search for B[superscript +] → D[subscript s][superscript +]ϕ Decays
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| title_fullStr |
First Observation of B[superscript +] → D[subscript s][superscript +]K][superscript +]K[superscript −] Decays and a Search for B[superscript +] → D[subscript s][superscript +]ϕ Decays
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| title_full_unstemmed |
First Observation of B[superscript +] → D[subscript s][superscript +]K][superscript +]K[superscript −] Decays and a Search for B[superscript +] → D[subscript s][superscript +]ϕ Decays
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| title_short |
First Observation of B[superscript +] → D[subscript s][superscript +]K][superscript +]K[superscript −] Decays and a Search for B[superscript +] → D[subscript s][superscript +]ϕ Decays
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| title_sort |
first observation of b superscript d subscript s superscript k superscript k superscript decays and a search for b superscript d subscript s superscript ϕ decays
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| url |
http://hdl.handle.net/1721.1/116530
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