Measurements of inclusive production
Jul, 20025 pages
Published in:
- Phys.Rev.Lett. 89 (2002) 282001
e-Print:
- hep-ex/0207059 [hep-ex]
PDG: anything
Report number:
- CLNS-02-1785,
- CLEO-02-06
Experiments:
- CESR-CLEO-II,
- CESR-CLEO
View in:
Citations per year
Abstract:
Using the combined CLEO II and CLEO II.V data sets of 9.1 fb^{-1} at the Upsilon(4S), we measure properties of Psi mesons produced directly from decays of the B meson, where ``B'' denotes an admixture of B+, B-, B0, and B0bar, and ``Psi'' denotes either J/Psi or Psi(2S). We report first measurements of Psi polarization in B -> Psi(direct) X: alpha(J/Psi) = -0.30 {+0.07 -0.06 stat} {+-0.04 syst} and alpha(Psi(2S)) = -0.45 {+0.22 -0.19 stat} {+-0.04 syst}. We also report improved measurements of the momentum distributions of Psi produced directly from B decays, correcting for measurement smearing. Finally, we report measurements of the inclusive branching fraction for B -> Psi X and B -> Chi_c1 X.- electron positron: colliding beams
- electron positron: annihilation
- Upsilon(10570): electroproduction
- B: pair production
- B: hadronic decay
- psi mesons: polarization
- psi mesons: momentum spectrum
- J/psi(3100)
- psi(3685)
- angular distribution
References(24)
Figures(0)
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- [7]
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- [9]
- [10]
- [11]
- [12]
- [13]
- [14]
- [15]
- [16]
- [17]
- [18]
- [19]
- [20]
- [21]
- [22]
- [23]
- [24]