literature
Literature
Authors
Jobs
Seminars
Conferences
DataBETA

Search for excited and exotic electrons in the eγe \gamma decay channel in ppˉp \bar{p} collisions at s=1.96\sqrt{s} = 1.96 TeV

Collaboration
Oct, 2004
15 pages
Published in:
  • Phys.Rev.Lett. 94 (2005) 101802
e-Print:
DOI:
Report number:
  • FERMILAB-PUB-04-287-E
Experiments:
View in:
pdf
reference search60 citations

Citations per year

200520102015202020240246810
Abstract:
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.
Note:
  • 4 figures
  • 14.60.Hi
  • 12.60.Rc
  • 13.85.Qk
  • proton-proton inclusive interactions
  • high-energy elementary particle interactions
  • lepton decay
  • electromagnetic decays
  • standard model
  • anti-p p: colliding beams
  • anti-p p: inclusive reaction