Qcd physics: study of jet shapes in inclusive jet production in ppbar collisions at sqrt s = 1.96 tev | |
Acosta, D. ; Collaboration, The CDF | |
Lawrence Berkeley National Laboratory | |
关键词: Quantum Chromodynamics; Transverse Momentum; 43 Particle Accelerators; Electrons; Sensitivity; | |
DOI : 10.2172/842927 RP-ID : LBNL--58141 RP-ID : AC03-76SF00098 RP-ID : 842927 |
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美国|英语 | |
来源: UNT Digital Library | |
【 摘 要 】
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{sup -1} of data collected in p{bar p} collisions at {radical}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{sub e*} and the compositeness energy scale {Lambda}. In the contact interaction model, we exclude 132 GeV/c{sup 2} < M{sub e*} < 879 GeV/c{sup 2} for {Lambda} = M{sub e*} at 95% confidence level (C.L.). In the gauge-mediated model, we exclude 126 GeV/c{sup 2} < M{sub e*} < 430 GeV/c{sup 2} at 95% C.L. for the phenomenological coupling f/{Lambda} {approx} 10{sup -2} GeV{sup -1}.
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