Search for Excited and Exotic Electrons in the e-gamma Decay Channel in p-pbar Collisions at sqrt(s) = 1.96 TeV

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.

4 figures

References in corpus (3)

• Search for Excited Leptons at LEP
• Search for Charged Excited Leptons in e+e- Collisions at sqrt(s) = 183-209 GeV
• Search for Excited Electrons at HERA

Cited by in corpus (25)

• Search for excited electrons and muons in sqrt(s)=8 TeV proton-proton collisions with the ATLAS detector
• Proposal for chiral bosons search at LHC via their unique new signature
• Search for excited leptons in proton-proton collisions at sqrt(s) = 8 TeV
• Search for Excited Electrons in ep Collisions at HERA
• Search for excited electrons in ppbar collisions at sqrt(s) = 1.96 TeV
• Search for excited leptons in proton-proton collisions at sqrt(s) = 7 TeV with the ATLAS detector
• Excited muon searches at the FCC based muon-hadron colliders
• A search for excited leptons in pp Collisions at sqrt(s) = 7 TeV
• Search for Excited and Exotic Muons in the mu+gamma Decay Channel in p-pbar Collisions at sqrt{s} = 1.96 TeV
• Search for Excited Muons in ppbar Collisions at sqrt(s) = 1.96 TeV
• Search for New Physics in Lepton + Photon + X Events with 929 pb-1 of ppbar Collisions at roots = 1.96 TeV
• Search for excited leptons in pp collisions at sqrt(s) = 7 TeV
• Search for excited electrons through $\gamma \gamma$ scattering
• Search for excited leptons in $\ell \ell \gamma$ final states in proton-proton collisions at $\sqrt{s}=$ 13 TeV
• The signatures of doubly charged leptons in future linear colliders
• Review of Searches for Rare Processes and Physics Beyond the Standard Model at HERA
• Search for excited electrons singly produced in proton-proton collisions at $\sqrt{s}=13$ TeV with the ATLAS experiment at the LHC
• Search for ZZ and ZW Production in ppbar Collisions at sqrt(s) = 1.96 TeV
• Search for New Physics in Lepton + Photon + X Events with L=305 pb-1 of ppbar Collisions at roots=1.96 TeV
• Search for an excited lepton that decays via a contact interaction to a lepton and two jets in proton-proton collisions at $\sqrt{s}=$ 13 TeV
• A search for an excited muon decaying to a muon and two jets in $pp$ collisions at $\sqrt{s}$ = 8 TeV with the ATLAS detector
• QCD corrections to excited lepton (pair) production at LHC
• Review of searches for Higgs bosons and beyond the standard model physics at the Tevatron
• Anomalously interacting new extra vector bosons and their first LHC constraints
• Production and decay rates of excited leptons in a left-right symmetric scenario