Press Room

Fermilab Results Change Higgs Mass Estimate

DZero Collaboration
Meenakshi Narain examines possible top quark events at Fermilab's DZero experiment in 1995.
Scientists at the Department of Energy's Fermi National Accelerator Laboratory announced on June 9, 2004 new results that change the best estimate of the mass of the postulated Higgs boson from approximately 96 GeV/c2 to 117 GeV/c2. Compared to the previous value, the new value is in better agreement with direct searches - such as those conducted by CERN experiments - that excluded a mass below 114 GeV/c2. In a paper to appear in the June 10 issue of Nature magazine, physicists of Fermilab's DZero experiment report on results obtained by applying a new analysis technique to data obtained from 1992 to 1996 during Collider Run I at the Fermilab Tevatron, the world's highest-energy particle accelerator.
Full text of the press release

You can find more information on the following Web sites:
  • Background Information
  • Photos of the DZero Experiment
  • Press Release from Nature Magazine
  • DZero Paper in Nature Magazine (PDF)
  • Homepage of the DZero Collaboration
  • DZero Member Institutions
  • Live collision events at Fermilab's Tevatron

  • last modified 06/08/2004   email Fermilab