Improved Limit on the Branching Fraction of the Rare Decay K[superscript 0][subscript s] → μ[superscript +]μ[superscript -]
A search for the decay K[subscript 0][subscript s]→μ[superscript +]μ[superscript -] is performed, based on a data sample of proton-proton collisions corresponding to an integrated luminosity of 3fb[superscript -1], collected by the LHCb experiment at centre-of-mass energies of 7 and 8 TeV. The obser...
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| Other Authors: | |
| Format: | Article |
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Springer/Società Italiana di Fisica
2018
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| Online Access: | http://hdl.handle.net/1721.1/116617 https://orcid.org/0000-0001-5534-1732 https://orcid.org/0000-0001-8285-3346 |
| _version_ | 1811097011823312896 |
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| author | Boettcher, Thomas Julian Ilten, Philip J Williams, Michael |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Boettcher, Thomas Julian Ilten, Philip J Williams, Michael |
| author_sort | Boettcher, Thomas Julian |
| collection | MIT |
| description | A search for the decay K[subscript 0][subscript s]→μ[superscript +]μ[superscript -] is performed, based on a data sample of proton-proton collisions corresponding to an integrated luminosity of 3fb[superscript -1], collected by the LHCb experiment at centre-of-mass energies of 7 and 8 TeV. The observed yield is consistent with the background-only hypothesis, yielding a limit on the branching fraction of B(K[superscript 0][subscript S]→μ[superscript +]μ[superscript -])<0.8(1.0)×10[superscript -9] at 90%(95%) confidence level. This result improves the previous upper limit on the branching fraction by an order of magnitude. |
| first_indexed | 2024-09-23T16:52:54Z |
| format | Article |
| id | mit-1721.1/116617 |
| institution | Massachusetts Institute of Technology |
| last_indexed | 2024-09-23T16:52:54Z |
| publishDate | 2018 |
| publisher | Springer/Società Italiana di Fisica |
| record_format | dspace |
| spelling | mit-1721.1/1166172022-10-03T08:54:05Z Improved Limit on the Branching Fraction of the Rare Decay K[superscript 0][subscript s] → μ[superscript +]μ[superscript -] Boettcher, Thomas Julian Ilten, Philip J Williams, Michael Massachusetts Institute of Technology. Department of Physics Massachusetts Institute of Technology. Laboratory for Nuclear Science Boettcher, Thomas Julian Ilten, Philip J Williams, Michael A search for the decay K[subscript 0][subscript s]→μ[superscript +]μ[superscript -] is performed, based on a data sample of proton-proton collisions corresponding to an integrated luminosity of 3fb[superscript -1], collected by the LHCb experiment at centre-of-mass energies of 7 and 8 TeV. The observed yield is consistent with the background-only hypothesis, yielding a limit on the branching fraction of B(K[superscript 0][subscript S]→μ[superscript +]μ[superscript -])<0.8(1.0)×10[superscript -9] at 90%(95%) confidence level. This result improves the previous upper limit on the branching fraction by an order of magnitude. National Science Foundation (U.S.) 2018-06-26T14:52:20Z 2018-06-26T14:52:20Z 2017-10 2017-01 2018-03-12T14:24:49Z Article http://purl.org/eprint/type/JournalArticle 1434-6044 1434-6052 http://hdl.handle.net/1721.1/116617 LHCb Collaboration, et al. “Improved Limit on the Branching Fraction of the Rare Decay K[superscript 0][subscript s] → μ[superscript +]μ[superscript -].” The European Physical Journal C, vol. 77, no. 10, Oct. 2017. © 2017 CERN for the benefit of the LHCb collaboration https://orcid.org/0000-0001-5534-1732 https://orcid.org/0000-0001-8285-3346 http://dx.doi.org/10.1140/epjc/s10052-017-5230-x The European Physical Journal C Creative Commons Attribution http://creativecommons.org/licenses/by/3.0/ CERN for the benefit of the LHCb collaboration application/pdf Springer/Società Italiana di Fisica TopicHub SCOAP3 |
| spellingShingle | Boettcher, Thomas Julian Ilten, Philip J Williams, Michael Improved Limit on the Branching Fraction of the Rare Decay K[superscript 0][subscript s] → μ[superscript +]μ[superscript -] |
| title | Improved Limit on the Branching Fraction of the Rare Decay K[superscript 0][subscript s] → μ[superscript +]μ[superscript -] |
| title_full | Improved Limit on the Branching Fraction of the Rare Decay K[superscript 0][subscript s] → μ[superscript +]μ[superscript -] |
| title_fullStr | Improved Limit on the Branching Fraction of the Rare Decay K[superscript 0][subscript s] → μ[superscript +]μ[superscript -] |
| title_full_unstemmed | Improved Limit on the Branching Fraction of the Rare Decay K[superscript 0][subscript s] → μ[superscript +]μ[superscript -] |
| title_short | Improved Limit on the Branching Fraction of the Rare Decay K[superscript 0][subscript s] → μ[superscript +]μ[superscript -] |
| title_sort | improved limit on the branching fraction of the rare decay k superscript 0 subscript s μ superscript μ superscript |
| url | http://hdl.handle.net/1721.1/116617 https://orcid.org/0000-0001-5534-1732 https://orcid.org/0000-0001-8285-3346 |
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