Measurement of J/Psi and Psi(2S) Polarization in ppbar Collisions at sqrt(s) = 1.8 TeV

Details Measurement of J/Psi and Psi(2S) Polarization in ppbar Collisions at sqrt(s) = 1.8 TeV Measurement of J/Psi and Psi(2S) Polarization in ppbar Collisions at sqrt(s) = 1.8 TeV

Publishing date

2000-04-25

URL

arxiv.org/abs/hep-ex/0004027v2

Journals

Phys.Rev.Lett.85:2886-2891,2000

Science

Physics

Field

High Energy Physics

SubField

High Energy Physics - Experiment

Additional info

Revised version, accepted for publication in Physical Review Letters

Type

Scientific paper

Digital Object Identifier

10.1103/PhysRevLett.85.2886

Abstract

We have measured the polarization of J/Psi and Psi(2S) mesons produced in p\bar{p} collisions at \sqrt{s} = 1.8 TeV, using data collected at CDF during 1992-95. The polarization of promptly produced J/Psi [Psi(2S)] mesons is isolated from those produced in B-hadron decay, and measured over the kinematic range 4[5.5] < P_T < 20 GeV/c and |y| < 0.6. For P_T \gessim 12 GeV/c we do not observe significant polarization in the prompt component.

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