Measurement of the B0s → μμ effective lifetime with the ATLAS detector

Please use this identifier to cite or link to this item: https://hdl.handle.net/20.500.11851/10860

Title:	Measurement of the B0s → μμ effective lifetime with the ATLAS detector
Authors:	Aad, G. Abbott, B. Abeling, K. Abicht, N. J. Abidi, S. H. Aboulhorma, A. Abramowicz, H.
Keywords:	B Physics Hadron-Hadron Scattering
Publisher:	Springer
Abstract:	This paper reports the first ATLAS measurement of the B-s(0) -> mu mu 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 B-s(0) effective lifetime, with statistical uncertainties extracted through a Neyman construction. The resulting effective measurement of the B-s(0) -> mu mu lifetime is 0.99(-0.07)(+0.42) (stat.) +/- 0.17 (syst.) ps and it is found to be consistent with the Standard Model.
URI:	https://doi.org/10.1007/JHEP09(2023)199 https://hdl.handle.net/20.500.11851/10860
ISSN:	1029-8479
Appears in Collections:	WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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