Spectroscopy, leptonic decays and the nature of heavy quarkonia

Abstract

We examine the electronic width ratios of Upsilon resonances below the BBbar threshold by means of an effective (Cornell-type) QCD potential incorporating 1/m_b corrections obtained from a prior fit to the bottomonium spectrum. From our analysis we conclude that the Upsilon(2S) and Upsilon(3S) states should belong to the strong-coupling (nonperturbative) regime while the Upsilon(1S) state should belong to the weak-coupling (perturbative) regime, in agreement with a previous study based on radiative decays.

arXiv comment8 pages

References in corpus (36)

• Big-Bang nucleosynthesis (Particle Data Group mini-review)
• The Cosmological Parameters 2006
• Rigorous QCD Analysis of Inclusive Annihilation and Production of Heavy Quarkonium
• Heavy Quark Symmetry
• Potential NRQCD: an effective theory for heavy quarkonium
• Improved Nonrelativistic QCD for Heavy Quark Physics
• Effective Field Theory for Ultrasoft Momenta in NRQCD and NRQED
• Quarkonium Wave Functions at the Origin
• Nonperturbative determination of the QCD potential at O(1/m)
• The QCD Potential at $O(1/m)$
• Model-independent Study of Magnetic Dipole Transitions in Quarkonium
• Probing NMSSM Scenarios with Minimal Fine-Tuning by Searching for Decays of the Upsilon to a Light CP-Odd Higgs Boson
• Quarkonium spectroscopy and perturbative QCD: massive quark-loop effects
• Potential-model calculation of an order-v^2 NRQCD matrix element
• Annihilation of S-wave quarkonia and the measurement of alpha_s
• Quarkonium Spectroscopy and Perturbative QCD: A New Perspective
• Inclusive Decays of Heavy Quarkonium to Light Particles
• Invisible Quarkonium Decays as a Sensitive Probe of Dark Matter
• Power Counting in Dimensionally Regularized NRQCD
• A Search for Invisible Decays of the Upsilon(1S)
• New predictions for inclusive heavy-quarkonium P-wave decays
• Order alpha_s^3 ln^2(1/alpha_s) Corrections to Heavy-Quarkonium Creation and Annihilation
• Hunting a light CP-odd non-standard Higgs boson through its tauonic decay at a (Super) B factory
• Heavy Meson Description with a Screened Potential
• Power counting and effective field theory for charmonium
• Leptonic universality breaking in Upsilon decays as a probe of new physics
• Radiative quarkonium decays and the NMSSM Higgs interpretation of the HyperCP Sigma+ --> p mu+mu- events
• Cornell Potential Parameters for S-wave Heavy Quarkonia
• Search for Invisible Decays of the Upsilon(1S) Resonance
• Di-electron Widths of the Upsilon(1S,2S,3S) Resonances
• Radiative decays and the nature of heavy quarkonia
• QQ-onia package: a numerical solution to the Schrodinger radial equation for heavy quarkonium
• Relativistic corrections to the static potential at O(1/m) and O(1/m^2)
• Proposal for testing lepton universality in Upsilon decays at a B-factory running at ${\rm Y}(3S)$
• Power scaling rules for charmonia production and HQEFT
• Inclusive radiative decays of charmonium

Cited by in corpus (12)

• Heavy quarkonium: progress, puzzles, and opportunities
• Review of Heavy Quarkonium at weak coupling
• Exact Klein-Gordon equation with spatially-dependent masses for unequal scalar-vector Coulomb-like potentials
• A first estimate of triply heavy baryon masses from the pNRQCD perturbative static potential
• Improved determination of Heavy Quarkonium magnetic dipole transitions in pNRQCD
• Effective string theory constraints on the long distance behavior of the subleading potentials
• Klein-Gordon oscillator in the presence of external fields in a cosmic space-time with a spacelike dislocation and Aharonov-Bohm effect
• QQ-onia package: a numerical solution to the Schrodinger radial equation for heavy quarkonium
• Complete analytical solution to the Cornell potential and heavy quarkonium structure
• Current Topics in Heavy Quarkonium Physics
• Overview of charmonium decays and production from Non-Relativistic QCD
• Investigation of spin-$0$ massive charged particle subject to a homogeneous magnetic field with potentials in a topologically trivial flat class of Gödel-type space-time