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

Metadata describes a digital item, providing (if known) such information as creator, publisher, contents, size, relationship to other resources, and more. Metadata may also contain "preservation" components that help us to maintain the integrity of digital files over time.

Title

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

Creator

  • Author: Aubert, B
    Creator Type: Personal

Contributor

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

Publisher

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

Date

  • Creation: 2008-11-05

Language

  • English

Description

  • 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

Subject

  • 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

Source

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

Collection

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

Institution

  • Name: UNT Libraries Government Documents Department
    Code: UNTGD

Resource Type

  • Article

Format

  • Text

Identifier

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

Note

  • Display Note: http://www.slac.stanford.edu/cgi-wrap/pubpage?slac-pub-13328.html