@Article{LHCbCollaborationAaij_etal2022, author="LHCb Collaboration (Aaij, R. et al and Jashal, B. K. and Martinez-Vidal, F. and Oyanguren, A. and Remon Alepuz, C. and Ruiz Vidal, J.", title="Analysis of Neutral B-Meson Decays into Two Muons", journal="Physical Review Letters", year="2022", publisher="Amer Physical Soc", volume="128", number="4", pages="041801--13pp", abstract="The branching fraction B(B-s(0)->mu(+)mu(-)) = (3.09(-0.43-0.11)(+0.46+0.15)) x 10(-9) and the effective lifetime to tau(B-s(0) -> mu(+)mu(-)) = 2.07 +/- 0.29 +/- 0.03 ps are measured, where the first uncertainty is statistical and the second systematic. No significant signal for B-0 ->mu(+)mu(-)gamma) and B-s(0)->mu(+)mu(-)gamma decays is found and upper limits B(B(B-0 ->mu(+)mu(-)) < 2.6 x 10(-10) and B(B-s(0) -> mu(+)mu(-)gamma) < 2.0 x 10(-9) at the 95{\%} C.L. are determined, where the latter is limited to the range m(mu mu) > 4.9 GeV/c(2). The results are in agreement with the standard model expectations.Branching fraction and effective lifetime measurements of the rare decay B-s(0) -> mu(+)mu(-) and searches for the decays B-0 -> mu(+)mu(-) and B-s(0) -> mu(+)mu(-)gamma are reported using proton-proton collision data collected with the LHCb detector at center-of-mass energies of 7, 8, and 13 TeV, corresponding to a luminosity of 9 fb(-1).", optnote="WOS:000754148900001", optnote="exported from refbase (https://references.ific.uv.es/refbase/show.php?record=5129), last updated on Thu, 03 Mar 2022 10:07:15 +0000", issn="0031-9007", doi="10.1103/PhysRevLett.128.041801", opturl="https://arxiv.org/abs/2108.09284", opturl="https://doi.org/10.1103/PhysRevLett.128.041801", language="English" }