Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Search for Excited and Exotic Electrons in the e-gamma Decay Channel in
  p-pbar Collisions at sqrt(s) = 1.96 TeV   We present a search for excited and exotic electrons (e*) decaying to an
electron and a photon, both with high transverse momentum. We use 202/pb of
data collected in p-pbar collisions at sqrt(s) = 1.96 TeV with the CDF II
detector. No signal above Standard Model expectation is seen for associated ee*
production. We discuss the e* sensitivity in the parameter space of the excited
electron mass M(e*) and the compositeness energy scale Lambda. In the contact
interaction model, we exclude 132 < M(e*) < 879 GeV/c^2 for Lambda = M(e*) at
95% confidence level (C.L.). In the gauge-mediated model, we exclude 126 <
M(e*) < 430 GeV/c^2 at 95% C.L. for the phenomenological coupling f/Lambda ~
0.01/GeV.

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The categories of this paper are: physics
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The categories of this paper are: cs
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The categories of this paper are: alg-geom
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The categories of this paper are: dg-ga
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The categories of this paper are: hep-ph
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The categories of this paper are: mtrl-th
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The categories of this paper are: chem-ph
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The categories of this paper are: hep-th
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The categories of this paper are: astro-ph
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The categories of this paper are: quant-ph
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The categories of this paper are: q-bio
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The categories of this paper are: comp-gas
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The categories of this paper are: nucl-th
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The categories of this paper are: math-ph
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The categories of this paper are: adap-org
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The categories of this paper are: acc-phys