Please use this identifier to cite or link to this item:
https://hdl.handle.net/20.500.11851/3057
Title: | Study of the rare decays of B s0 and B 0 mesons into muon pairs using data collected during 2015 and 2016 with the ATLAS detector | Authors: | The ATLAS Collaboration Sultansoy, Saleh |
Keywords: | Decay flavor (particle physics) differential branching |
Publisher: | Springer Verlag | Source: | ATLAS Collaboration. (2019). Study of the rare decays of B s 0 and B 0 mesons into muon pairs using data collected during 2015 and 2016 with the ATLAS detector. Journal of High Energy Physics, 2019(4), 98. | Abstract: | A study of the decays B s 0 → 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 s 0 -B 0 mass difference, a single fit determines the signal yields for both decay modes. This results in a measurement of the branching fraction ℬ(Bs0→μ+μ−)=(3.2−1.0+1.1)×10−9 and an upper limit ℬ (B→ μ + μ − ) < 4.3 × 10 − 10 at 95% confidence level. The result is combined with the Run 1 ATLAS result, yielding ℬ(Bs0→μ+μ−)=(2.8−0.7+0.8)×10−9 and ℬ (B→ 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(B0→μ+μ−)−ℬ(Bs0→μ+μ−) plane.[Figure not available: see fulltext.] © 2019, The Author(s). | URI: | https://link.springer.com/article/10.1007%2FJHEP04%282019%29098 https://hdl.handle.net/20.500.11851/3057 |
ISSN: | 11266708 |
Appears in Collections: | Malzeme Bilimi ve Nanoteknoloji Mühendisliği Bölümü / Department of Material Science & Nanotechnology Engineering Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection |
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sultansoy_decays.pdf | 1.04 MB | Adobe PDF | View/Open |
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