Published January 2009 | Version v1
Journal article

Search for sub-threshold photoproduction of J/ψ mesons

  • 1. Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606 (United States)
  • 2. Mississippi State University, Mississippi State, Mississippi 39762 (United States)
  • 3. University of the Witwatersrand, Johannesburg (South Africa)
  • 4. University of Pennsylvania, University Park, PA 16802 (United States)
  • 5. Physics Division, Argonne National Laboratory, Argonne, Illinois 60439 (United States)
  • 6. Yerevan Physics Institute, Yerevan (Armenia)
  • 7. University of Maryland, College Park, Maryland 20742 (United States)
  • 8. Hampton University, Hampton, Virginia 23668 (United States)

Description

A search was made for sub-threshold J/ψ production from a carbon target by using a mixed real and quasireal Bremsstrahlung photon beam with an endpoint energy of 5.76 GeV. No events were observed, which is consistent with predictions under the assumption of quasifree production. The results place limits on exotic mechanisms that strongly enhance quasifree production

Additional details

Publishing Information

Journal Title
Physical Review. C, Nuclear Physics
Journal Volume
79
Journal Issue
1
Journal Page Range
p. 015209-015209.7
ISSN
0556-2813
CODEN
PRVCAN

Optional Information

Notes
(c) 2009 The American Physical Society