Top quark search with the D0 1992--1993 data sample

Journal Article · Tue Oct 31 23:00:00 EST 1995 · Physical Review, D

DOI:https://doi.org/10.1103/PhysRevD.52.4877· OSTI ID:124265

Abachi, S; Abbott, B; Abolins, M; Acharya, B S; Adam, I; Adams, D L; Adams, M; Ahn, S; Aihara, H; Alitti, J; Alvarez, G; Alves, G A; Amidi, E; Amos, N; Anderson, E W; Aronson, S H; Astur, R; Avery, R E; Baden, A; Balamurali, V ; Balderston, J; Baldin, B; Bantly, J; Bartlett, J F; Bazizi, K; Bendich, J; Beri, S B; Bertram, I; Bezzubov, V A; Bhat, P C; Bhatnagar, V; Bhattacharjee, M; Bischoff, A; Biswas, N; Blazey, G; Blessing, S; Bloom, P; Boehnlein, A; Bojko, N I; Borcherding, F; Borders, J; Boswell, C; Brandt, A; Brock, R; Bross, A; Buchholz, D; Burtovoi, V S; Butler, J M; Casey, D; Castilla-Valdez, H; Chakraborty, D; Chang, S; Chekulaev, S V; Chen, L; Chen, W; Chevalier, L; Chopra, S; Choudhary, B C; Christenson, J H; Chung, M; Claes, D; Clark, A R; Cobau, W G; Cochran, J; Cooper, W E; Cretsinger, C; Cullen-Vidal, D; Cummings, M A.C.; Cutts, D; Dahl, O I; De, K; Demarteau, M; Demina, R; Denisenko, K; Denisenko, N; Denisov, D; Denisov, S P; Dharmaratna, W; Diehl, H T; Diesburg, M; Di Loreto, G; Dixon, R; Draper, P; Drinkard, J; Ducros, Y; Dugad, S R; Durston-Johnson, S; Edmunds, D; Ellison, J; Elvira, V D; Engelmann, R; Eno, S; Eppley, G; Ermolov, P; Eroshin, O V; Evdokimov, V N; Fahey, S; Fahland, T; Fatyga, M; Fatyga, M K; Featherly, J; Feher, S; Fein, D; Ferbel, T; Finocchiaro, G; Fisk, H E; Fisyak, Y; Flattum, E; Forden, G E; Fortner, M; Frame, K C; Franzini, P; Fuess, S; Galjaev, A N; Gallas, E; Gao, C S; Gao, S; Geld, T L; Genik, II, R J; Genser, K; Gerber, C E; Gibbard, B; Glaubman, M; Glebov, V; Glenn, S; Gobbi, B; Goforth, M; Goldschmidt, A; Gomez, B; Goncharov, P I; Gordon, H; Goss, L T; Graf, N; Grannis, P D; Green, D R; Green, J; Greenlee, H; Griffin, G; Grossman, N; Grudberg, P; Gruenendahl, S; Gu, W; Guida, J A; Guida, J M; Guryn, W; Gurzhiev, S N; Gutnikov, Y E; Hadley, N J; Haggerty, H

We present results on the search for the top quark in {ital p{bar p}} collisions at {radical}{ital s} =1.8 TeV with an integrated luminosity of 13.5{plus_minus}1.6 pb{sup {minus}1}. We have considered {ital t{bar t}} production in the standard model using electron and muon dilepton decay channels ({ital t{bar t}}{r_arrow}{ital e}{mu}+jets, {ital ee}+jets, and {mu}{mu}+jets) and single-lepton decay channels ({ital t{bar t}}{r_arrow}{ital e}+jets and {mu}+jets) with and without tagging of {ital b} quark jets. An analysis of these data optimized for top quark masses below 140 GeV/{ital c}{sup 2} gives a lower top quark mass limit of 128 GeV/{ital c}{sup 2}. An analysis optimized for higher top quark masses yields 9 events with an expected background of 3.8{plus_minus}0.9. If we assume that the excess is due to {ital t{bar t}} production, and assuming a top quark mass of 180 GeV/{ital c}{sup 2}, we obtain a cross section of 8.2{plus_minus}5.1 pb.

• OSTI ID: 124265
• Journal Information: Physical Review, D, Journal Name: Physical Review, D Journal Issue: 9 Vol. 52; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
CROSS SECTIONS
MASS
PARTICLE IDENTIFICATION
PROTON-ANTIPROTON INTERACTIONS
QUARKS
STANDARD MODEL
TEV RANGE 01-10
TOP PARTICLES