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Determination of chi(b) spin in the decays chi(b0,2) --->psi psi and chi(b0,2) ---> psi psi ---> 2(mu+ mu-)

Apr, 2006
7 pages
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Abstract:
The decays χb0,2→ψψ\chi_{b0,2}\to\psi\psi and χb0,2→ψψ→2(μ+μ−)\chi_{b0,2}\to\psi\psi\to2(\mu^+\mu^-) are considered. It is shown that with the help of ψ\psi-meson angular distributions and the distributions by final muon kinematical variables it is possible to determine the spin of the decaying χb\chi_b-meson. These distributions can also give an additional information about ψ\psi-meson wave functions.
  • 13.20.Gd
  • 13.30.Ce
  • 11.80.Cr
  • chi mesons: bottom
  • chi/b0(9860): hadronic decay
  • chi/b0(10235): hadronic decay
  • chi/b2(9915): hadronic decay
  • chi/b2(10270): hadronic decay
  • J/psi(3100): pair production
  • angular distribution