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
Identifiers
- DOI
- 10.1103/PhysRevD.79.037505;
- arXiv
- arXiv:0812.2136v2;
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
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 41010789
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Descriptors DEI
- BOTTOMONIUM; D WAVES; ELECTRONS; EXCITED STATES; GEV RANGE 10-100; KEV RANGE; MASS DIFFERENCE; MEV RANGE; POSITRONS; UPSILON-11020 MESONS; WEINBERG ANGLE
- Descriptors DEC
- ANTILEPTONS; ANTIMATTER; ANTIPARTICLES; BOSONS; BOTTOMONIUM; ELEMENTARY PARTICLES; ENERGY LEVELS; ENERGY RANGE; FERMIONS; GEV RANGE; HADRONS; LEPTONS; MATTER; MESONS; PARTIAL WAVES; PARTICLE PROPERTIES; QUARKONIUM; VECTOR MESONS
Optional Information
- Notes
- (c) 2009 The American Physical Society