A New Way to Detect the Higgs

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A New Way to Detect the Higgs
S. Reucroft Northeastern University, Boston
Work done with Y.N. Srivastava, J. Swain and A.
Widom 1. hep-ph/0509151 and Euro. Phys. J. C
(theory) 2. hep-ph/0511233 (experimental
consequences)
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Standard ways to look for Higgs

• Really only two techniques
• 1) Direct searches
• 2) Indirect appearances in loops with heavy
  particles (radiative corrections).
• NOT EASY

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http//lepewwg.web.cern.ch/LEPEWWG/ 114
GeVltMHlt199 GeV (95 CL)
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http//cmsinfo.cern.ch/outreach/CMSdocuments/CMSpl
ots/CMSplots.html 100
fb-1, 10 yrs at 1033 cm-2s-1
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http//cmsinfo.cern.ch/outreach/CMSdocuments/CMSpl
ots/CMSplots.html
100 fb-1, 10 yrs at 1033 cm-2s-1
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http//cmsinfo.cern.ch/outreach/CMSdocuments/CMS
plots/CMSplots.html 100
fb-1, 10 yrs at 1033 cm-2s-1
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http//atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/TDR/
TDR.html 30 fb-1, 30
yrs at 1032 cm-2s-1
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http//atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/TDR/
TDR.html 100 fb-1, 10 yrs at
1033 cm-2s-1
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A New Method

• Based on a Very Simple Idea
• Look for the Higgs FIELD instead of the Higgs
  PARTICLE
• Problem Higgs is very massive ? very short range
  Higgs field
• A Particle very close to the Source of a Higgs
  Field will experience a Mass Adjustment
• Look at the Effect on Pairs of Massive Particles
  near Pair Threshold

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hep-ph/0509151 Euro. Phys. J. C
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Z Mass Plots from L3 at LEP2
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Summary

• Look at Pairs of Massive Particles Near Threshold
• Higgs Field Causes Mass Shifts
• Experimentally Difficult and Delicate Technique
• (Like all Higgs Techniques)
• Complements Higgs Boson Searches
• New Powerful Higgs Tool at LHC, ILC,.
• Unlike Direct and Indirect Higgs Boson Searches,
• It Provides Unambiguous Proof of Presence or
  Absence of Higgs Field