Search for Invisible Decays of a Light Scalar in Radiative Transitions Y(3S)->gamma A0 Metadata

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  • Main Title Search for Invisible Decays of a Light Scalar in Radiative Transitions Y(3S)->gamma A0


  • Author: Aubert, B
    Creator Type: Personal


  • Sponsor: United States. Department of Energy.
    Contributor Type: Organization


  • Name: Stanford Linear Accelerator Center
    Place of Publication: [Menlo Park, California]
    Additional Info: SLAC


  • Creation: 2008-11-05


  • English


  • Content Description: We search for a light scalar particle produced in single-photon decays of the {Upsilon}(3S) resonance through the process {Upsilon}(3S) {yields} {gamma} + A{sup 0}, A{sup 0} {yields} invisible. Such an object appears in Next-to-Minimal Supersymmetric extensions of the Standard Model, where a light CP-odd Higgs boson naturally couples strongly to b-quarks. If, in addition, there exists a light, stable neutralino, decays of A{sup 0} could be preferentially to an invisible final state. We search for events with a single high-energy photon and a large missing mass, consistent with a 2-body decay of {Upsilon}(3S). We find no evidence for such processes in a sample of 122 x 10{sup 6} {Upsilon}(3S) decays collected by the BABAR collaboration at the PEP-II B-factory, and set 90% C.L. upper limits on the branching fraction {Beta}({Upsilon}(3S) {yields} {gamma}A{sup 0}) x {Beta}(A{sup 0} {yields} invisible) at (0.7-31) x 10{sup -6} in the mass range m{sub A{sup 0}} {le} 7.8 GeV. The results are preliminary.
  • Physical Description: 17 pages


  • Keyword: Decay
  • Keyword: Photons
  • Keyword: Scalars
  • Keyword: Standard Model Experiment-Hep,Hepex
  • Keyword: Higgs Bosons
  • Keyword: Experiment-Hep,Hepex
  • Keyword: Physics
  • STI Subject Categories: 72 Physics Of Elementary Particles And Fields
  • Keyword: Resonance
  • Keyword: Missing Mass
  • Keyword: B Quarks


  • Conference: Submitted to 34th International Conference on High Energy Physics (ICHEP 2008), Philadelphia, Pennsylvania, 30 Jul - 5 Aug 2008


  • Name: Office of Scientific & Technical Information Technical Reports
    Code: OSTI


  • Name: UNT Libraries Government Documents Department
    Code: UNTGD

Resource Type

  • Article


  • Text


  • Report No.: SLAC-PUB-13328
  • Grant Number: AC02-76SF00515
  • Office of Scientific & Technical Information Report Number: 940746
  • Archival Resource Key: ark:/67531/metadc901661


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