Adelaide Research & Scholarship
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https://hdl.handle.net/2440/140935
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| Type: | Journal article |
| Title: | Measurement of the B0 s → μμ effective lifetime with the ATLAS detector |
| Other Titles: | Measurement of the B(0) s → mu mu effective lifetime with the ATLAS detector |
| Author: | Aad, G. Abbott, B. Abeling, K. Abicht, N.J. Abidi, S.H. Aboulhorma, A. Abramowicz, H. Abreu, H. Abulaiti, Y. Acharya, B.S. Adam Bourdarios, C. Adamczyk, L. Addepalli, S.V. Addison, M.J. Adelman, J. Adiguzel, A. Adye, T. Affolder, A.A. Afik, Y. Agaras, M.N. et al. |
| Citation: | The Journal of High Energy Physics, 2023; 2023(9):199-1-199-31 |
| Publisher: | Springer Science and Business Media LLC |
| Issue Date: | 2023 |
| ISSN: | 1029-8479 1029-8479 |
| Abstract: | This paper reports the first ATLAS measurement of the B0 s → μμ effective lifetime. The measurement is based on the data collected in 2015–2016, amounting to 26.3 fb−1 of 13TeV LHC proton-proton collisions. The proper decay-time distribution of 58±13 background-subtracted signal candidates is fit with simulated signal templates parameterised as a function of the B0 s effective lifetime, with statistical uncertainties extracted through a Neyman construction. The resulting effective measurement of the B0 s → μμ lifetime is 0.99+0.42 −0.07 (stat.)±0.17 (syst.) ps and it is found to be consistent with the Standard Model. |
| Rights: | Open Access, Copyright CERN, for the benefit of the ATLAS Collaboration. This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited. |
| DOI: | 10.1007/jhep09(2023)199 |
| Published version: | http://dx.doi.org/10.1007/jhep09(2023)199 |
| Appears in Collections: | Research Outputs |
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