A new approach to quarkonium polarization studies

Abstract

Significant progress in understanding quarkonium production requires improved polarization measurements, fully considering the intrinsic multidimensionality of the problem. We propose a frame-invariant formalism which minimizes the dependence of the measured result on the experimental acceptance, facilitates the comparison with theoretical calculations, and provides a much needed control over systematic effects due to detector limitations and analysis biases. This formalism is a direct and generic consequence of the rotational invariance of the dilepton decay distribution and is independent of any assumptions specific to particular models of quarkonium production.

References in corpus (5)

• Polarizations of J/psi and psi(2S) Mesons Produced in ppbar Collisions at 1.96 TeV
• On the mechanisms of heavy-quarkonium hadroproduction
• Rotation-invariant relations in vector meson decays into fermion pairs
• Measurement of the polarization of the ${\rm Y}(1S)$ and ${\rm Y}(2S)$ states in $p\bar{p}$ collisions at $\sqrt{s}=$1.96 TeV
• J/psi polarization from fixed-target to collider energies

Cited by in corpus (30)

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• Measurement of J/psi and psi(2S) prompt double-differential cross sections in pp collisions at sqrt(s) = 7 TeV
• Rotation-invariant relations in vector meson decays into fermion pairs
• Measurements of Angular Distributions of Muons From Upsilon Meson Decays in p p-bar Collisions at sqrt(s)=1.96 TeV
• Quarkonium production in high energy proton-proton and proton-nucleus collisions
• Model-independent constraints on the shape parameters of dilepton angular distributions
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• Quantum tomography for collider physics: Illustrations with lepton pair production
• Measurement of the ${\rm Y}$ polarizations in $pp$ collisions at $\sqrt{s}$=7 and 8TeV
• Quarkonium production at the LHC: a phenomenological analysis of surprisingly simple data patterns
• Quarkonium production at the LHC: a data-driven analysis of NRQCD's predictions
• Angular distribution and rotations of frame in vector meson decays into lepton pairs
• Prospects for quarkonium studies at the high-luminosity LHC
• Constraints on the ${\chi }_{c1}$ versus ${\chi }_{c2}$ polarizations in proton-proton collisions at $\sqrt{s}=$ 8 TeV
• On the Rotational Invariance and Non-Invariance of Lepton Angular Distributions in Drell-Yan and Quarkonium Production
• Y(nS) polarizations versus particle multiplicity in pp collisions at sqrt(s) = 7 TeV
• Rotation-invariant observables in parity-violating decays of vector particles to fermion pairs
• J/psi and Upsilon Polarization in Hadronic Production Processes
• Questions and prospects in quarkonium polarization measurements from proton-proton to nucleus-nucleus collisions
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• $J/\psi$ and $\psi$(2S) polarization in proton-proton collisions at energies available at the CERN Large Hadron Collider using PYTHIA8
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• Review of Physics Results from the Tevatron: Heavy Flavor Physics
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• First polarisation measurement of coherently photoproduced J/$\psi$ in ultra-peripheral Pb$-$Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 5.02 TeV
• Minimal physical constraints on the angular distributions of two-body boson decays