期刊
PHYSICAL REVIEW D
卷 81, 期 11, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.81.111502
关键词
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资金
- Fundacao para a Ciencia e a Tecnologia, Portugal [SFRH/BPD/42343/2007, CERN/FP/109343/2009]
- Fundação para a Ciência e a Tecnologia [SFRH/BPD/42343/2007, CERN/FP/109343/2009] Funding Source: FCT
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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