Measurement of the Prompt $J/\psi$ and $\psi$(2S) Polarizations in $pp$ Collisions at $\sqrt{s}$ = 7 TeV - INSPIRE

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Measurement of the Prompt $J/\psi$ and $\psi$ (2S) Polarizations in $pp$ Collisions at $\sqrt{s}$ = 7 TeV

CMS

Collaboration

Jul 23, 2013

22 pages

Published in:

Phys.Lett.B 727 (2013) 381-402

Published: Oct 29, 2013

e-Print:

1307.6070 [hep-ex]

DOI:

10.1016/j.physletb.2013.10.055

Report number:

CMS-BPH-13-003,
CERN-PH-EP-2013-140

Experiments:

CERN-LHC-CMS

View in:

reference search214 citations

Citations per year

Abstract: (Elsevier)

The polarizations of prompt J/ψ and ψ(2S) mesons are measured in proton–proton collisions at s=7 TeV , using a dimuon data sample collected by the CMS experiment at the LHC, corresponding to an integrated luminosity of 4.9 fb −1 . The prompt J/ψ and ψ(2S) polarization parameters λϑ , λφ , and λϑφ , as well as the frame-invariant quantity λ˜ , are measured from the dimuon decay angular distributions in three different polarization frames. The J/ψ results are obtained in the transverse momentum range 14

Note:

Replaced with published version. Added journal reference and DOI

Quarkonium polarization
Quarkonium production
Physics
CMS
psi(3685): polarization
p p: scattering
decay: angular distribution
dimuon: final state
J/psi(3100): polarization
rapidity dependence

References(28)

Figures(11)

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