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Title

Search for Excited and Exotic Electrons in the e y Decay Channel in pp Collisions at s√=1.96  TeV

CollaborationWith : Campanelli, Mario / Clark, Allan Geoffrey / Donega, Mauro / D'Onofrio, Monica / Liu, Yanwen / Wu, Xin / Zsenei, Andras
Published in Physical Review Letters. 2005, vol. 94, no. 10, p. 101802
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 pp 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.
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CDF COLLABORATION. Search for Excited and Exotic Electrons in the e y Decay Channel in pp Collisions at s√=1.96  TeV. In: Physical Review Letters, 2005, vol. 94, n° 10, p. 101802. https://archive-ouverte.unige.ch/unige:38099

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Deposited on : 2014-06-24

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