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Search for excited and exotic electrons in the e gamma decay channel in p(p)over-bar collisions at root s=1.96 TeV

Acosta D.
•
Adelman J.
•
Affolder T.
altro
Zucchelli S.
2005
  • journal article

Periodico
PHYSICAL REVIEW LETTERS
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).
DOI
10.1103/PhysRevLett.94.101802
WOS
WOS:000227838900011
Archivio
http://hdl.handle.net/11390/879561
info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-18044374972
Diritti
metadata only access
Scopus© citazioni
37
Data di acquisizione
Jun 14, 2022
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Web of Science© citazioni
27
Data di acquisizione
Mar 20, 2024
Visualizzazioni
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Data di acquisizione
Apr 19, 2024
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