2025-05-21 22:03 |
First fully exclusive reconstruction of radiative decays of the B∗+, B∗0, and B∗0s mesons and measurement of their masses in proton-proton collisions at √s=13TeV
/CMS Collaboration
Using a data sample corresponding to an integrated luminosity of 140fb−1 of proton-proton collisions collected by the CMS experiment at √s=13TeV in 2016--2018, the first full reconstruction of the three vector B meson states, B∗+, B∗0, and B∗0s, is performed. The mass differences between the excited mesons and their corresponding ground states are measured to be m(B∗+)−m(B+)=45.277±0.039±0.021MeV, m(B∗0)−m(B0)=45.471±0.056±0.024MeV, and m(B∗0s)−m(B0s)=49.407±0.132±0.034MeV, where the first uncertainty is statistical and the second is systematic. [...]
CMS-PAS-BPH-24-011.-
Geneva : CERN, 2025
Figure_001-a: PDF; Figure_001-b: PDF; Figure_001-c: PDF; Figure_A001-d: PDF; Figure_A001-e: PDF; Figure_A001-f: PDF; Figure_A001-g: PDF; Figure_C001-h: PDF; Figure_C001-i: PDF; Fulltext in PDF: PDF; External link: Additional information for the analysis (restricted access)
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