Search for the decay J/ψ→γ+invisible Academic Article uri icon

Overview

MeSH Major

  • Atrial Fibrillation
  • Blood Pressure Monitoring, Ambulatory

abstract

  • A search for J/ψ radiative decay to weakly interacting neutral final states was performed using the CLEO-c detector at the Cornell Electron Storage Ring. J/ψ events were selected by observing the hadronic decay ψ(2S)→π+π-J/ψ. A total of 3.7×106 J/ψ events were used to study the decay J/ψ→γ+X, where X is a narrow state that is invisible to the detector. No significant signal was observed, and upper limits on the branching fraction were set for masses mX up to 960MeV/c2. The upper limit corresponding to mX=0 is 4.3×10-6 at the 90% confidence level. © 2010 The American Physical Society.

authors

publication date

  • May 24, 2010

Research

keywords

  • Academic Article

Identity

Digital Object Identifier (DOI)

  • 10.1103/PhysRevD.81.091101

Additional Document Info

volume

  • 81

number

  • 9