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@ARTICLE{Sirunyan:437438,
      author       = {Sirunyan, Albert M and others},
      collaboration = {{CMS Collaboration}},
      title        = {{S}tudy of central exclusive $\pi^+\pi^-$ production in
                      proton-proton collisions at $\sqrt{s} =$ 5.02 and 13
                      {T}e{V}},
      reportid     = {PUBDB-2020-01533, arXiv:2003.02811. CMS-FSQ-16-006.
                      CERN-EP-2020-005},
      year         = {2020},
      note         = {Submitted to EPJC. All figures and tables can be found at
                      http://cms-results.web.cern.ch/cms-results/public-results/publications/FSQ-16-006
                      (CMS Public Pages)},
      abstract     = {Central exclusive production of $\pi^+\pi^-$ pairs is
                      measured with the CMS detector in proton-proton collisions
                      at the LHC at center-of-mass energies of 5.02 and 13 TeV.
                      The theoretical description of these nonperturbative
                      processes, which have not yet been measured in detail at the
                      LHC, poses a significant challenge to models. The two pions
                      are measured and identified in the CMS silicon tracker based
                      on specific energy loss, whereas the absence of other
                      particles is ensured by calorimeter information. The total
                      and differential cross sections of exclusive central
                      $\pi^+\pi^-$ production are measured as functions of
                      invariant mass, transverse momentum, and rapidity of the
                      $\pi^+\pi^-$ system in the fiducial region defined as
                      transverse momentum $p_\mathrm{T}(\pi) > $ 0.2 GeV and
                      pseudorapidity $|\eta(\pi)| <$ 2.4. The production cross
                      sections for the four resonant channels f$_0(500)$,
                      $\rho^0(770)$, f$_0(980)$, and f$_2(1270)$ are extracted
                      using a simple model. These results represent the first
                      measurement of this process at the LHC collision energies of
                      5.02 and 13 TeV.},
      keywords     = {p p: scattering (INSPIRE) / p p: colliding beams (INSPIRE)
                      / pi: pair production (INSPIRE) / pi: particle
                      identification (INSPIRE) / CERN LHC Coll (INSPIRE) /
                      transverse momentum dependence (INSPIRE) / rapidity
                      dependence (INSPIRE) / mass dependence (INSPIRE) / mass
                      spectrum: (pi+ pi-) (INSPIRE) / CMS (INSPIRE) / differential
                      cross section: measured (INSPIRE) / total cross section:
                      measured (INSPIRE) / f0(600) (INSPIRE) / rho(770) (INSPIRE)
                      / f0(980) (INSPIRE) / f2(1270) (INSPIRE) / pi: exclusive
                      production (INSPIRE) / tracking detector (INSPIRE) /
                      nonperturbative (INSPIRE) / calorimeter (INSPIRE) / energy
                      loss (INSPIRE) / two-pion (INSPIRE) / silicon (INSPIRE) /
                      experimental results (INSPIRE) / 5020 GeV-cms (INSPIRE) /
                      13000 GeV-cms (INSPIRE)},
      cin          = {CMS},
      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)25},
      eprint       = {2003.02811},
      howpublished = {arXiv:2003.02811},
      archivePrefix = {arXiv},
      SLACcitation = {$\%\%CITATION$ = $arXiv:2003.02811;\%\%$},
      doi          = {10.3204/PUBDB-2020-01533},
      url          = {https://bib-pubdb1.desy.de/record/437438},
}