Abstract
The polarizations of the , , and mesons are measured in proton-proton collisions at , using a data sample of decays collected by the CMS experiment, corresponding to an integrated luminosity of . The dimuon decay angular distributions are analyzed in three different polarization frames. The polarization parameters , , and , as well as the frame-invariant quantity , are presented as a function of the transverse momentum between 10 and 50 GeV, in the rapidity ranges and . No evidence of large transverse or longitudinal polarizations is seen in the explored kinematic region.
- Received 13 September 2012
DOI:https://doi.org/10.1103/PhysRevLett.110.081802
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© 2013 CERN, for the CMS Collaboration