NRQCD matrix elements in polarization of J-Psi produced from b-decay

Details NRQCD matrix elements in polarization of J-Psi produced from b-decay NRQCD matrix elements in polarization of J-Psi produced from b-decay

1996-08-22

arxiv.org/abs/hep-ph/9608413v1

Phys.Rev. D55 (1997) 4098-4104

Physics

High Energy Physics

High Energy Physics - Phenomenology

9 pages, Revtex, 2 figures

Scientific paper

10.1103/PhysRevD.55.4098

We present the non-relativistic QCD (NRQCD) prediction for the polarization of the J-Psi produced in b to J-Psi + X, as well as the helicity-summed production rate. We propose that these observables provide a means of measuring the three most important color-octet NRQCD matrix elements involved in J-Psi production. Anticipating the measurement of the polarization parameter alpha, we determine its expected range given current experimental bounds on the color-octet matrix elements.

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