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dc.contributor.authorAaboud, M.
dc.contributor.authorRogan, Christopher
dc.contributor.authorThe ATLAS collaboration
dc.date.accessioned2021-01-15T19:51:35Z
dc.date.available2021-01-15T19:51:35Z
dc.date.issued2019-04-15
dc.identifier.citationThe ATLAS collaboration., Aaboud, M., Aad, G. et al. Study of the rare decays of B^0s and B^0 mesons into muon pairs using data collected during 2015 and 2016 with the ATLAS detector. J. High Energ. Phys. 2019, 98 (2019). https://doi.org/10.1007/JHEP04(2019)098en_US
dc.identifier.urihttp://hdl.handle.net/1808/31155
dc.descriptionThis work is licensed under a Creative Commons Attribution 4.0 International License.en_US
dc.description.abstractA study of the decays B^0s → μ+μ− and B^0 → μ+μ− has been performed using 26.3 fb−1 of 13 TeV LHC proton-proton collision data collected with the ATLAS detector in 2015 and 2016. Since the detector resolution in μ+μ− invariant mass is comparable to the B 0s-B0 mass difference, a single fit determines the signal yields for both decay modes. This results in a measurement of the branching fraction (𝐵^0𝑠→𝜇+𝜇−)=(3.2+1.1−1.0)×10−9 and an upper limit (𝐵^0→𝜇+𝜇−)<4.3×10−10 at 95% confidence level. The result is combined with the Run 1 ATLAS result, yielding (𝐵^0𝑠→𝜇+𝜇−)=(2.8+0.8−0.7)×10−9 and (𝐵^0→𝜇+𝜇−)<2.1×10−10 at 95% confidence level. The combined result is consistent with the Standard Model prediction within 2.4 standard deviations in the (𝐵^0→𝜇+𝜇−)−(𝐵^0𝑠→𝜇+𝜇−) plane.en_US
dc.publisherSpringer Verlagen_US
dc.rightsCopyright CERN, for the benefit of the ATLAS Collaboration.en_US
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en_US
dc.subjectHadron-Hadron scattering (experiments)en_US
dc.titleStudy of the rare decays of B^0s and B^0 mesons into muon pairs using data collected during 2015 and 2016 with the ATLAS detectoren_US
dc.typeArticleen_US
kusw.kuauthorRogan, Christopher
kusw.kudepartmentPhysics and Astronomyen_US
dc.identifier.doi10.1007/JHEP04(2019)098en_US
kusw.oaversionScholarly/refereed, publisher versionen_US
kusw.oapolicyThis item meets KU Open Access policy criteria.en_US
dc.rights.accessrightsopenAccessen_US


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Copyright CERN, for the benefit of the ATLAS Collaboration.
Except where otherwise noted, this item's license is described as: Copyright CERN, for the benefit of the ATLAS Collaboration.