Lancaster, M;
Waters, DCDFC;
(2005)
Search for Excited and Exotic Electrons in the e gamma Decay Channel in p anti-p Collisions at s**(1/2) = 1.96 TeV.
Physical Review Letters
, 94
(10)
, Article 101802. 10.1103/PhysRevLett.94.101802.
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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-1 of data collected in pp̅ collisions at √s=1.96 TeV with the Collider Detector at Fermilab 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 Me* and the compositeness energy scale Λ. In the contact interaction model, we exclude 132 GeV/c2<Me*<879 GeV/c2 for Λ=Me* at 95% confidence level (C.L.). In the gauge-mediated model, we exclude 126 GeV/c2<Me*<430 GeV/c2 at 95% C.L. for the phenomenological coupling f/Λ≈10-2 GeV-1.
| Type: | Article |
|---|---|
| Title: | Search for Excited and Exotic Electrons in the e gamma Decay Channel in p anti-p Collisions at s**(1/2) = 1.96 TeV |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevLett.94.101802 |
| Publisher version: | http://dx.doi.org/10.1103/PhysRevLett.94.101802 |
| Language: | English |
| Additional information: | © 2005 The American Physical Society |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy |
| URI: | https://discovery.ucl.ac.uk/id/eprint/131998 |
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