Photon Transitions inΥ(2S)andΥ(3S)Decays

2004/11/22 by M. Artuso, C. Boulahouache, S. Blusk +97 · 4 citations
Chemistry · Physics and Astronomy · #Analytical Chemistry (journal) #Chemistry #Dipole #High-Energy Particle Collisions Research #Optics #Particle physics theoretical and experimental studies #Photon #Physics #Quantum Chromodynamics and Particle Interactions #Quantum mechanics #Spectral line #hep-ex

paper · pdf · doi:10.1103/physrevlett.94.032001

published as Phys.Rev.Lett.94:032001,2005 · 10 pages postscript,also available through http://www.lns.cornell.edu/public/CLNS/2004/, submitted to PRL

arxiv created 2004/11/22 · openalex publication_date 2005/01/25 · openalex created_date 2016/06/24 · arxiv updated 2019/08/13 · openalex updated_date 2026/08/05

Abstract

We have studied the inclusive photon spectra in \ensuremathΥ(2S) and \ensuremathΥ(3S) decays using a large statistics data sample obtained with the CLEO III detector. We present the most precise measurements of electric dipole (E1) photon transition rates and photon energies for \ensuremathΥ(2S)\ensuremath→\ensuremathγ\ensuremathχ_bJ(1P) and \ensuremathΥ(3S)\ensuremath→\ensuremathγ\ensuremathχ_bJ(2P) (J=0, 1, 2). We measure the rate for a rare E1 transition \ensuremathΥ(3S)\ensuremath→\ensuremathγ\ensuremathχ_b0(1P) for the first time. We also set upper limits on the rates for the hindered magnetic dipole (M1) transitions to the \ensuremathη_b(1S) and \ensuremathη_b(2S) states.

Citations

• Production of theD-wavebb¯states
• Production of theηb<mml:mn/>(nS)<mml:mn/>states
• Big Bang Nucleosynthesis (in "The Review of Particle Properties" 2004)

Cited by

• Observation ofχbJ(1P,2P)decays to light hadrons
• InclusiveχbJ(nP)decays toD0X
• Probing light pseudoscalar, axial vector states throughηb→τ+τ−
• Bottomonium spectroscopy and radiative transitions involving theχbJ(1P,2P)states atBaBar