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arXiv · 1005.2855

A new approach to quarkonium polarization studies

Pietro Faccioli·Carlos Lourenco·Joao Seixas
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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.

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Pietro Faccioli, Carlos Lourenco, Joao Seixas. 2010-05-17. A new approach to quarkonium polarization studies. https://doi.org/10.1103/physrevd.81.111502

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