% 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:437842,
      author       = {Sirunyan, Albert M and others},
      collaboration = {{CMS Collaboration}},
      title        = {{M}easurement of properties of
                      {B}$^0_\mathrm{s}\to\mu^+\mu^-$ decays and search for
                      {B}$^0\to\mu^+\mu^-$ with the {CMS} experiment},
      journal      = {JHEP reports},
      volume       = {04},
      number       = {4},
      issn         = {2589-5559},
      address      = {Amsterdam},
      publisher    = {Elsevier},
      reportid     = {PUBDB-2020-01697, arXiv:1910.12127. CMS-BPH-16-004.
                      CERN-EP-2019-215},
      pages        = {188},
      year         = {2020},
      note         = {All figures and tables can be found at
                      http://cms-results.web.cern.ch/cms-results/public-results/publications/BPH-16-004
                      (CMS Public Pages)},
      abstract     = {Results are reported for the B$^0_\mathrm{s}\to\mu^+\mu^-$
                      branching fraction and effective lifetime and from a search
                      for the decay B$^0\to\mu^+\mu^-$. The analysis uses a data
                      sample of proton-proton collisions accumulated by the CMS
                      experiment in 2011, 2012, and 2016, with center-of-mass
                      energies (integrated luminosities) of 7 TeV (5 fb$^{-1}$), 8
                      TeV (20 fb$^{-1}$), and 13 TeV (36 fb$^{-1}$). The branching
                      fractions are determined by measuring event yields relative
                      to B$^+\to$J/$\psi$K$^+$ decays (with
                      J/$\psi\to\mu^+\mu^-$), which results in the reduction of
                      many of the systematic uncertainties. The decay
                      B$^0_\mathrm{s}\to\mu^+\mu^-$ is observed with a
                      significance of 5.6 standard deviations. The branching
                      fraction is measured to be
                      $\mathcal{B}$(B$^0_\mathrm{s}\to\mu^+\mu^-$) = [2.9$
                      ^{+0.7}_{-0.6}$ (exp)$\pm$0.2(frag)]$\times 10^{-9}$, where
                      the first uncertainty combines the experimental statistical
                      and systematic contributions, and the second is due to the
                      uncertainty in the ratio of the B$^0_\mathrm{s}$ and the
                      B$^+$ fragmentation functions. No significant excess is
                      observed for the decay B$^0\to\mu^+\mu^-$, and an upper
                      limit of $\mathcal{B}$(B$^0\to\mu^+\mu^-$) <
                      3.6$\times$10$^{-10}$ is obtained at 95\% confidence level.
                      The B$^0_\mathrm{s}\to\mu^+\mu^-$ effective lifetime is
                      measured to be $\tau_{\mu^+\mu^-}$= 1.70$^{+0.61}_{-0.44}$
                      ps. These results are consistent with standard model
                      predictions.},
      keywords     = {p p: scattering (INSPIRE) / p p: colliding beams (INSPIRE)
                      / B0: leptonic decay (INSPIRE) / B/s0: leptonic decay
                      (INSPIRE) / B0: rare decay (INSPIRE) / B/s0: rare decay
                      (INSPIRE) / muon: pair production (INSPIRE) / B/s0:
                      branching ratio: measured (INSPIRE) / B0: branching ratio:
                      upper limit (INSPIRE) / lifetime: measured (INSPIRE) / CERN
                      LHC Coll (INSPIRE) / CMS (INSPIRE) / fragmentation function
                      (INSPIRE) / statistical (INSPIRE) / experimental results
                      (INSPIRE) / B0 --> muon+ muon- (INSPIRE) / B/s0 --> muon+
                      muon- (INSPIRE) / 7000 GeV-cms (INSPIRE) / 8000 GeV-cms
                      (INSPIRE) / 13000 GeV-cms (INSPIRE)},
      cin          = {CMS},
      ddc          = {610},
      cid          = {I:(DE-H253)CMS-20120731},
      pnm          = {611 - Fundamental Particles and Forces (POF3-611)},
      pid          = {G:(DE-HGF)POF3-611},
      experiment   = {EXP:(DE-H253)LHC-Exp-CMS-20150101},
      typ          = {PUB:(DE-HGF)29 / PUB:(DE-HGF)16},
      eprint       = {1910.12127},
      howpublished = {arXiv:1910.12127},
      archivePrefix = {arXiv},
      SLACcitation = {$\%\%CITATION$ = $arXiv:1910.12127;\%\%$},
      UT           = {WOS:000529688900001},
      doi          = {10.1007/JHEP04(2020)188},
      url          = {https://bib-pubdb1.desy.de/record/437842},
}