Published February 1, 2009 | Version v1
Journal article

Possibility to observe higher n3D1 bottomonium states in the e+e- processes

  • 1. Institute of Theoretical and Experimental Physics, Moscow (Russian Federation)
  • 2. Department of Physics and Astronomy, Vrije Universiteit, Amsterdam (Netherlands)
  • 3. Moscow Engineering Physics Institute, Moscow (Russian Federation)

Description

The possibility to observe new bottomonium states with JPC=1-- in the region 10.7-11.1 GeV is discussed. The analysis of the dielectron widths shows that the (n+1)3S1 and n3D1 states (n≥3) may be mixed with a rather large mixing angle, θ≅30 deg., and this effect provides the correct values of Γee(Υ(10580)) and Γee(Υ(11020)). On the other hand, the S-D mixing gives rise to an increase by 2 orders of magnitude of the dielectron widths of the mixed Υ-tilde(n3D1) resonances (n=3, 4, 5), which originate from pure D-wave states. The value Γee(Υ-tilde(3D))=0.095-0.025+0.028 keV is obtained, being only ∼3 times smaller than the dielectron width of Υ(10580), while Γee(Υ-tilde(5D))∼135 eV appears to be close to Γee(Υ(11020)) and therefore this resonance may become manifest in the e+e- experiments. The mass differences between M(nD) and M((n+1)S) (n=4, 5) are shown to be rather small, 50±10 MeV.

Additional details

Publishing Information

Journal Title
Physical Review. D, Particles Fields
Journal Volume
79
Journal Issue
3
Journal Page Range
p. 037505-037505.4
ISSN
0556-2821
CODEN
PRVDAQ

Optional Information

Notes
(c) 2009 The American Physical Society