Search for scalar leptoquark pairs decaying to electrons and jets in p̄ p collisions

Search for scalar leptoquark pairs decaying to electrons and jets in p̄ p collisions

We have searched for the pair production of first generation scalar leptoquarks in the eejj channel using the full data set (123 pb-1) collected with the DO detector at the Fermilab Tevatron during 1992-1996. We observe no candidates with an expected background of approximately 0.4 events. Comparing...

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Podrobná bibliografie
Hlavní autoři: Abbott, B, Abolins, M, Acharya, B, Adam, I, Adams, D, Adams, M, Ahn, S, Aihara, H, Alves, G, Amidi, E, Amos, N, Anderson, E, Astur, R, Baarmand, M, Baden, A, Balamurali, V, Balderston, J, Baldin, B, Banerjee, S, Bantly, J, Bartlett, J, Bazizi, K, Belyaev, A, Beri, S, Bertram, I
Médium: Journal article
Jazyk:English
Vydáno: 1997
Popis
Shrnutí:We have searched for the pair production of first generation scalar leptoquarks in the eejj channel using the full data set (123 pb-1) collected with the DO detector at the Fermilab Tevatron during 1992-1996. We observe no candidates with an expected background of approximately 0.4 events. Comparing the experimental 95% confidence level upper limit to theoretical calculations of the cross section with the assumption of a 100% branching fraction of eq, we set a lower limit on the mass of a first generation scalar leptoquark of 225 GeV/c2. The results of this analysis rule out the interpretation of the excess of high Q2 events at DESY HERA as leptoquarks which decay exclusively to eq.

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