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Why Higgs - Www Atlas Lbl

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oundary conditions<br />

put theory on an interval [0, πR]×R 3,1<br />

impose boundary conditions at each<br />

boundary, i.e., Dirichlet or Neumann<br />

only Neumann 2 leads to zero modes<br />

regard W and Z boson as the lightest KK<br />

state<br />

No <strong>Higgs</strong> mechanism, no physical scalar<br />

bosons “<strong>Higgs</strong>less model”<br />

(all non-zero mode A can be “gauged away”)<br />

5<br />

y=0 y=!R<br />

20

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