Acosta, D;
Adelman, J;
Affolder, T;
Akimoto, T;
Albrow, MG;
Ambrose, D;
Amerio, S;
... Zucchelli, S; + view all
(2005)
Search for excited and exotic electrons in the e gamma decay channel in p(p)over-bar collisions at root s=1.96 TeV.
PHYS REV LETT
, 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 p (p) over bar collisions at root 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 M-e(*) and the compositeness energy scale Lambda. In the contact interaction model, we exclude 132 GeV/c(2)< M-e*< 879 GeV/c(2) for Lambda=M-e* at 95% confidence level (C.L.). In the gauge-mediated model, we exclude 126 GeV/c(2)< M-e*< 430 GeV/c(2) at 95% C.L. for the phenomenological coupling f/Lambda approximate to 10(-2) GeV-1.
| Type: | Article |
|---|---|
| Title: | Search for excited and exotic electrons in the e gamma decay channel in p(p)over-bar collisions at root s=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 |
| Keywords: | CDF PLUG UPGRADE, HADRON COLLIDERS, LEPTONS, CALORIMETER, GENERATION, DETECTOR, FERMIONS, HERA, LEP |
| UCL classification: | UCL 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/136810 |
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