Study of radiative bottomonium transitions using converted photons
Name
Lees-2011-Study of radiative bottomonium transitions.pdf
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1.08 MB
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Author(s)
Dujmic, Denis
Sciolla, Gabriella
Cowan, Ray F
Date Issued
October 2011
Journal
Physical Review D
Publisher
American Physical Society (APS)
Citation
Lees, J. et al. “Study of radiative bottomonium transitions using converted photons.” Physical Review D 84.7 (2011): n. pag. Web. 25 Jan. 2012. © 2011 American Physical Society
Version
Final published version
Abstract
We use (111±1) million Υ(3S) and (89±1) million Υ(2S) events recorded by the BABAR detector at the PEP-II B-factory at SLAC to perform a study of radiative transitions between bottomonium states using photons that have been converted to e[superscript +]e[superscript -] pairs by the detector material. We observe Υ(3S)→γ[subscript χb0,2](1P) decay, make precise measurements of the branching fractions for χ[subscript b1,2](1P,2P)→γΥ(1S) and χ[subscript b1,2](2P)→γΥ(2S) decays, and search for radiative decay to the η[subscript b](1S) and η[subscript b](2S) states.
MIT Department
Massachusetts Institute of Technology. Laboratory for Nuclear Science
Terms of Use
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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DOI of Published Version
https://doi.org/10.1103/PhysRevD.84.072002
