% IMPORTANT: The following is UTF-8 encoded. This means that in the presence % of non-ASCII characters, it will not work with BibTeX 0.99 or older. % Instead, you should use an up-to-date BibTeX implementation like “bibtex8” or % “biber”. @ARTICLE{Sirunyan:450154, author = {Sirunyan, Albert M and others}, collaboration = {{CMS Collaboration}}, title = {{O}bservation of the {B}$^0_\mathrm{s}\to ${X}(3872)$\phi$ decay}, journal = {Physical review letters}, volume = {125}, number = {15}, issn = {1079-7114}, address = {College Park, Md.}, publisher = {APS}, reportid = {PUBDB-2020-04210, arXiv:2005.04764. CMS-BPH-17-005. CERN-EP-2020-070}, pages = {152001}, year = {2020}, note = {All the figures and tables, including additional supplementary figures, can be found at http://cms-results.web.cern.ch/cms-results/public-results/publications/BPH-17-005 (CMS Public Pages) ; publication: Phys.Rev.Lett. 125 15 (2020) 152001 ; ;}, abstract = {Using a data sample of proton-proton collisions at s=13 TeV, corresponding to an integrated luminosity of 140 fb-1 collected by the CMS experiment in 2016–2018, the Bs0→X(3872)ϕ decay is observed. Decays into J/ψπ+π− and K+K- are used to reconstruct, respectively, the X(3872) and ϕ. The ratio of the product of branching fractions B[Bs0→X(3872)ϕ]B[X(3872)→J/ψπ+π−] to the product B[Bs0→ψ(2S)ϕ]B[ψ(2S)→J/ψπ+π−] is measured to be $[2.21±0.29(stat)±0.17(syst)]\%.$ The ratio B[Bs0→X(3872)ϕ]/B[B0→X(3872)K0] is found to be consistent with one, while the ratio B[Bs0→X(3872)ϕ]/B[B+→X(3872)K+] is two times smaller. This suggests a difference in the production dynamics of the X(3872) in B0 and Bs0 meson decays compared to B+. The reported observation may shed new light on the nature of the X(3872) particle.}, keywords = {p p: colliding beams (INSPIRE) / B/s0: hadronic decay (INSPIRE) / p p: scattering (INSPIRE) / X(3872): hadronic decay (INSPIRE) / Phi(1020): hadronic decay (INSPIRE) / B/s0: branching ratio (INSPIRE) / X(3872): branching ratio (INSPIRE) / Phi(1020): branching ratio (INSPIRE) / branching ratio: ratio: measured (INSPIRE) / CMS (INSPIRE) / CERN LHC Coll (INSPIRE) / experimental results (INSPIRE) / B/s0 --> X(3872) Phi(1020) (INSPIRE) / X(3872) --> J/psi(3100) pi+ pi- (INSPIRE) / Phi(1020) --> K+ K- (INSPIRE) / 13000 GeV-cms (INSPIRE)}, cin = {CMS}, ddc = {530}, cid = {I:(DE-H253)CMS-20120731}, pnm = {611 - Fundamental Particles and Forces (POF3-611) / DFG project 390833306 - EXC 2121: Quantum Universe (390833306)}, pid = {G:(DE-HGF)POF3-611 / G:(GEPRIS)390833306}, experiment = {EXP:(DE-H253)LHC-Exp-CMS-20150101}, typ = {PUB:(DE-HGF)16}, eprint = {2005.04764}, howpublished = {arXiv:2005.04764}, archivePrefix = {arXiv}, SLACcitation = {$\%\%CITATION$ = $arXiv:2005.04764;\%\%$}, pubmed = {pmid:33095627}, UT = {WOS:000575690400002}, doi = {10.1103/PhysRevLett.125.152001}, url = {https://bib-pubdb1.desy.de/record/450154}, }