This title appears in the Scientific Report :
2019
Please use the identifier:
http://hdl.handle.net/2128/22199 in citations.
Please use the identifier: http://dx.doi.org/10.1103/PhysRevD.98.091102 in citations.
Observation of e + e − → π + π − π 0 χ b 1 , 2 ( 1 P ) and search for e + e − → ϕ χ b 1 , 2 ( 1 P ) at s = 10.96 — 11.05 GeV
Observation of e + e − → π + π − π 0 χ b 1 , 2 ( 1 P ) and search for e + e − → ϕ χ b 1 , 2 ( 1 P ) at s = 10.96 — 11.05 GeV
We report searches for the processes e+e−→π+π−π0χbJ and e+e−→ϕχbJ (J=1, 2) based on data samples collected by the Belle experiment at the KEKB collider. We report the first observation of the process e+e−→(π+π−π0)non−ωχb1 and first evidence for e+e−→ωχbJ in the vicinity of the Υ(11020) resonance, wi...
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Please use the identifier: http://dx.doi.org/10.1103/PhysRevD.98.091102 in citations.
We report searches for the processes e+e−→π+π−π0χbJ and e+e−→ϕχbJ (J=1, 2) based on data samples collected by the Belle experiment at the KEKB collider. We report the first observation of the process e+e−→(π+π−π0)non−ωχb1 and first evidence for e+e−→ωχbJ in the vicinity of the Υ(11020) resonance, with center-of-mass energies from 10.96 to 11.05 GeV. The significances for (π+π−π0)non−ωχb1 and ωχbJ are greater than 5.3σ and 4.0σ, respectively. We also investigate the energy dependence of the e+e−→π+π−π0χbJ cross section, but we cannot determine whether the contributions are from the Υ(10860) and Υ(11020) resonances or nonresonant continuum processes. The signals for e+e−→ϕχbJ are not significant, and the upper limits of the Born cross sections at the 90% confidence level are 0.7 and 1.0 pb for e+e−→ϕχb1 and ϕχb2, respectively, for center-of-mass energies from 10.96 to 11.05 GeV. |