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Christopher Tully

Christopher Tully In the last months of operation of the world's largest electron-positron collider (LEP - Geneva, Switzerland), experimental high-energy particle physics confronted tantalizing hints for the existence of the Higgs field. The physical properties of all materials are determined by the masses of the elementary particles. The interaction of these particles with the Higgs field gives them their masses. Without the Higgs mechanism, the predictions of the electroweak interactions at the energy scale of the LHC will fundamentally break down.

One of the most important legacies of the LEP physics program is the combined Higgs search data for which our group held a leading responsibility for the analysis and interpretation of the results. The Higgs field properties are also predicted in the precision electroweak measurements. The LEP data has narrowed the allowed search range for the lightest Higgs boson to less than 200 times the proton mass. This data is improved with the measurements of the top quark and W mass at the Tevatron collider at Fermilab. Our group is continuing the Higgs search at the Tevatron with the D0 detector where improvements in the electroweak fit data and the direct search results have an exciting potential for discovery.

Equally important to the Higgs search is the preparation of the CMS detector for the next generation accelerator, the LHC, which is to be installed in the LEP tunnel at CERN. Our group is taking leading responsibilities on the CMS experiment. The LHC will produce high-energy particle collisions at a rate of nearly one billion per second. Only a minute fraction of these particle interactions contains the physics of mass generation. In a joint study with the D0 collaboration, new methods for triggering are being explored for the CMS experiment. The trigger system must tackle the extreme collision rates of the LHC and efficiently select out the prized Higgs boson events.

S e l e c t e d P u b l i c a t i o n s:

  • Tully, C. with the D0 and CDF Collaborations and the Tevatron Electroweak Working Group. 2005. Combination of the CDF and DO Results on the Top-Quark Mass. hep-ex/0507091.
  • Tully, C. with the DO Collaboration. 2005. Measurement of the ttbar Production Cross Section in ppbar Collisions at sqrt{s} = 1.96 TeV in Dilepton Final States. Physics Letters B (accepted). FERMILAB-PUB-05-217-E.
  • Tully, C. with the DO Collaboration. 2005. Measurement of the ttbar Production Cross Section in ppbar Collisions at sqrt{s} = 1.96 TeV using Lepton + Jets Events with Lifetime b-tagging. Physics Letters B (accepted). FERMILAB-PUB-05-087-E.
  • Tully, C. with the DO Collaboration. 2005. Measurement of the ttbar Production Cross Section in ppbar Collisions at sqrt{s} = 1.96 TeV using Kinematic Characteristics of Lepton + Jets Events. Physics Letters B (accepted). FERMILAB-PUB-05-079-E.
  • Tully, C. with the DO Collaboration. 2005. Search for single top quark production in ppbar Collisions at sqrt{s} = 1.96 TeV. Physics Letters B Volume 622, Issue 3-4, pp. 265-276.
  • Tully, C. with the DO Collaboration. 2005. Measurement of the W Boson Helicity in Top Quark Decays. Physical Review D Rapid Comm. (accepted). FERMILAB-PUB-05-187-E.
  • Tully, C. with the DO Collaboration. 2005. A Search for Anomalous Heavy-flavor Quark Production in Association with W Bosons. Physics Review Letters, Volume 94, 152002.
  • Tully, C. with the DO and CDF Collaborations. 2003. Results of the Tevatron Higgs Sensitivity Study. FERMILAB-PUB-03/320-E.
  • Tully, C. with the L3 Collaboration. 2003. Search for a Higgs Boson Decaying to Weak Boson Pairs at LEP. Physics Letters B, Volume 568, Issue 2-3.
  • Tully, C. with the ALEPH/DELPHI/OPAL/L3 Collaborations and the LEP Higgs Working Group. 2003. Search for the Standard Model Higgs Boson at LEP. Physics Letters B, Volume 565, pp. 61-75.
  • Kado, M.M., Tully, C.G. 2002. The Searches for Higgs Bosons at LEP. Annual Review of Nuclear and Particle Science, 52:65-113.
  • Tully, C. with the L3 Collaboration. 2002. Search for Neutral Higgs Bosons of the Minimal Supersymmetric Standard Model in e+e- Interactions at sqrt{s} up to 209 GeV. Physics Letters B, Volume 545, Issue 1-2, pp. 30-42.
  • Tully, C. with the L3 Collaboration. 2001. Standard Model Higgs Boson with the L3 Experiment at LEP. Physics Letters B, Volume 517, Issue 3-4, pp. 319-331.
  • Tully, C. with the L3 Collaboration. 2000. Higgs Candidates in e+e- Interactions at sqrt{s} = 206.6 GeV. Physics Letters B, Volume 495, Issue 1-2, pp. 18-25.


 
 

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