Single production of leptoquarks at the Fermilab Tevatron
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2000-04-01
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Éboli, O. J P [UNESP]
Lungov, T. L. [UNESP]
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We study single production of first generation leptoquarks in association with e± at the Fermilab Tevatron. We focus our attention on final states exhibiting an e+e- pair and jets, and perform a detailed analysis of the signal and background. The single leptoquark production cross section depends on the leptoquark Yukawa coupling to lepton-quark pairs and we show that the study of this mode can extend considerably the leptoquark search for a large range of these couplings. In fact, for Yukawa couplings of electromagnetic strength, the combined results of the Tevatron experiments can exclude the existence of leptoquarks with masses up to 260-285 (370-425) GeV at the run I (run II), depending on their type. ©2000 The American Physical Society.
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Physical Review D - Particles, Fields, Gravitation and Cosmology, v. 61, n. 7, p. 1-7, 2000.