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


Journal Article

We have searched for the pair production of first generation scalar leptoquarks in the eejj channel using the full data set (123pb−1) collected with the D0 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. © 1997 The American Physical Society.

Full Text

Duke Authors

Cited Authors

  • Abbott, B; Abolins, M; Acharya, BS; Adam, I; Adams, DL; Adams, M; Ahn, S; Aihara, H; Alves, GA; Amidi, E; Amos, N; Anderson, EW; Astur, R; Baarmand, MM; Baden, A; Balamurali, V; Balderston, J; Baldin, B; Banerjee, S; Bantly, J; Bartlett, JF; Bazizi, K; Belyaev, A; Beri, SB; Bertram, I; Bezzubov, VA; Bhat, PC; Bhatnagar, V; Bhattacharjee, M; Biswas, N; Blazey, G; Blessing, S; Bloom, P; Boehnlein, A; Bojko, NI; Borcherding, F; Boswell, C; Brandt, A; Brock, R; Bross, A; Buchholz, D; Burtovoi, VS; Butler, JM; Carvalho, W; Casey, D; Casilum, Z; Castilla-Valdez, H; Chakraborty, D; Chang, SM; Chekulaev, SV; Chen, LP; Chen, W; Choi, S; Chopra, S; Choudhary, BC; Christenson, JH; Chung, M; Claes, D; Clark, AR; Cobau, WG; Cochran, J; Cooper, WE; Cretsinger, C; Cullen-Vidal, D; Cummings, MAC; Cutts, D; Dahl, OI; Davis, K; De, K; Del Signore, K; Demarteau, M; Denisov, D; Denisov, SP; Diehl, HT; Diesburg, M; Di Loreto, G; Draper, P; Ducros, Y; Dudko, LV; Dugad, SR; Edmunds, D; Ellison, J; Elvira, VD; Engelmann, R; Eno, S; Eppley, G; Ermolov, P; Eroshin, OV; Evdokimov, VN; Fahland, T; Fatyga, M; Fatyga, MK; Featherly, J; Feher, S; Fein, D; Ferbel, T; Finocchiaro, G; Fisk, HE; Fisyak, Y; Flattum, E

Published Date

  • January 1, 1997

Published In

Volume / Issue

  • 79 / 22

Start / End Page

  • 4321 - 4326

Electronic International Standard Serial Number (EISSN)

  • 1079-7114

International Standard Serial Number (ISSN)

  • 0031-9007

Digital Object Identifier (DOI)

  • 10.1103/PhysRevLett.79.4321

Citation Source

  • Scopus