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@INPROCEEDINGS{Schnning:291944,
      author       = {Schönning, Karin},
      collaboration = {{COMPASS Collaboration}},
      title        = {{T}he {OZI} {R}ule and {S}pin {A}lignment of {V}ector
                      {M}esons at {COMPASS}},
      address      = {Hamburg},
      publisher    = {Deutsches Elektronen-Synchrotron, DESY},
      reportid     = {PUBDB-2015-05678, DESY-PROC-2014-04},
      pages        = {165-168},
      year         = {2014},
      abstract     = {The reaction $p p \rightarrow p V p$ ($V$ = $\omega$,
                      $\phi$) has been studied with the COMPASS spectrometer in
                      2008 and 2009, using a 190 GeV/c proton beam impinging on a
                      liquid hydrogen target.The measured cross section ratio
                      ratio violates the OZI prediction by a factor of $\approx$4.
                      Its kinematic dependence of the Feynman $x_F$ and the
                      $M_{pV}$ mass is discussed in terms of diffractive
                      production of baryon resonances in competition with central
                      production. The $M_{p\omega}$ spectrum has a rich structure,
                      indicating the importance of baryon resonances decaying into
                      $p\omega$, in sharp contrast to the structureless
                      $M_{p\phi}$ spectrum. Outside the resonant region, the OZI
                      violation factor is about 8, independently of $x_F$.The spin
                      density matrix element $\rho_{00}$ of the vector mesons is
                      studied in selected reference frames. Dependences of the
                      vector meson spin alignment on $x_F$ and $M_{pV}$ are
                      found.},
      month         = {Aug},
      date          = {2014-08-25},
      organization  = {Panic2014, Hamburg (Germany), 25 Aug
                       2014 - 29 Aug 2014},
      keywords     = {spin: alignment (autogen) / p: beam (autogen) / baryon
                      resonance: production (autogen) / spin: density matrix
                      (autogen) / Iizuka-Okubo-Zweig rule: violation (autogen) /
                      cross section: ratio: measured (autogen) / hydrogen: liquid:
                      target (autogen) / diffraction: production (autogen) /
                      vector meson (autogen) / COMPASS (autogen) / spectrometer
                      (autogen) / kinematics (autogen) / structure (autogen) /
                      Feynman (autogen)},
      cin          = {ATLAS / CMS / UNI/EXP},
      cid          = {I:(DE-H253)ATLAS-20120731 / I:(DE-H253)CMS-20120731 /
                      $I:(DE-H253)UNI_EXP-20120731$},
      pnm          = {611 - Fundamental Particles and Forces (POF3-611)},
      pid          = {G:(DE-HGF)POF3-611},
      experiment   = {EXP:(DE-MLZ)NOSPEC-20140101},
      typ          = {PUB:(DE-HGF)8 / PUB:(DE-HGF)15},
      doi          = {10.3204/DESY-PROC-2014-04/36},
      url          = {https://bib-pubdb1.desy.de/record/291944},
}