%0 Journal Article
%T Branching Fraction Measurements of the Rare B-s(0) -> phi mu(+)mu(-) and B-s(0)-> f(2)' (1525)mu(+)mu(-) Decays
%A LHCb Collaboration (Aaij, R. et al
%A Jashal, B. K.
%A Martinez-Vidal, F.
%A Oyanguren, A.
%A Remon Alepuz, C.
%A Ruiz Vidal, J.
%J Physical Review Letters
%D 2021
%V 127
%N 15
%I Amer Physical Soc
%@ 0031-9007
%G English
%F LHCbCollaborationAaij_etal2021
%O WOS:000704696500005
%O exported from refbase (https://references.ific.uv.es/refbase/show.php?record=4987), last updated on Sun, 24 Oct 2021 18:04:21 +0000
%X The branching fraction of the rare B-s(0) -> phi mu(+)mu(-) decay is measured using data collected by the LHCb experiment at center-of-mass energies of 7, 8, and 13 TeV, corresponding to integrated luminosities of 1, 2, and 6 fb(-1), respectively. The branching fraction is reported in intervals of q(2), the square of the dimuon invariant mass. In the q(2) region between 1.1 and 6.0 GeV2/c(4) , the measurement is found to lie 3.6 standard deviations below a standard model prediction based on a combination of light cone sum rule and lattice QCD calculations. In addition, the first observation of the rare B-s(0)-> f(2)' (1525)mu(+)mu(-) decay is reported with a statistical significance of 9 standard deviations and its branching fraction is determined.
%R 10.1103/PhysRevLett.127.151801
%U https://arxiv.org/abs/2105.14007
%U https://doi.org/10.1103/PhysRevLett.127.151801
%P 151801 - 11pp