High Energy Physics - Experiment
[Submitted on 16 Feb 2023 (v1), last revised 24 Oct 2023 (this version, v3)]
Title:Measurement of the $Λ_{b}^{0}\to Λ(1520) μ^{+}μ^{-}$ differential branching fraction
View PDFAbstract:The branching fraction of the rare decay $\Lambda_{b}^{0}\to \Lambda(1520) \mu^{+}\mu^{-}$ is measured for the first time, in the squared dimuon mass intervals, $q^2$, excluding the $J/\psi$ and $\psi(2S)$ regions. The data sample analyzed was collected by the LHCb experiment at center-of-mass energies of 7, 8, and 13 TeV, corresponding to a total integrated luminosity of $9\ \mathrm{fb}^{-1}$. The result in the highest $q^{2}$ interval, $q^{2} >15.0\ \mathrm{GeV}^2/c^4$, where theoretical predictions have the smallest model dependence, agrees with the predictions.
Submission history
From: Yixiong Zhou [view email][v1] Thu, 16 Feb 2023 12:41:50 UTC (242 KB)
[v2] Sun, 22 Oct 2023 07:08:52 UTC (242 KB)
[v3] Tue, 24 Oct 2023 14:25:32 UTC (303 KB)
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