Kinematic evidence for top quark pair production in {ital W}+multijet events in {ital p{bar p}} collisions at {radical}{ital s} =1.8 TeV

Journal Article · Mon May 01 00:00:00 EDT 1995 · Physical Review, D

DOI:https://doi.org/10.1103/PhysRevD.51.4623· OSTI ID:46378

Abe, F; Albrow, M G; Amendolia, S R; Amidei, D; Antos, J; Anway-Wiese, C; Apollinari, G; Areti, H; Atac, M; Auchincloss, P; Azfar, F; Azzi, P; Bacchetta, N; Badgett, W; Bailey, M W; Bao, J; de Barbaro, P; Barbaro-Galtieri, A; Barnes, V E; Barnett, B A ; Bartalini, P; Bauer, G; Baumann, T; Bedeschi, F; Behrends, S; Belforte, S; Bellettini, G; Bellinger, J; Benjamin, D; Benlloch, J; Bensinger, J; Benton, D; Beretvas, A; Berge, J P; Bertolucci, S; Bhatti, A; Biery, K; Binkley, M; Bird, F; Bisello, D; Blair, R E; Blocker, C; Bodek, A; Bokhari, W; Bolognesi, V; Bortoletto, D; Boswell, C; Boulos, T; Brandenburg, G; Bromberg, C; Buckley-Geer, E; Budd, H S; Burkett, K; Busetto, G; Byon-Wagner, A; Byrum, K L; Cammerata, J; Campagnari, C; Campbell, M; Caner, A; Carithers, W; Carlsmith, D; Castro, A; Cen, Y; Cervelli, F; Chao, H Y; Chapman, J; Cheng, M; Chiarelli, G; Chikamatsu, T; Chiou, C N; Cihangir, S; Clark, A G; Cobal, M; Contreras, M; Conway, J; Cooper, J; Cordelli, M; Couyoumtzelis, C; Crane, D; Cunningham, J D; Daniels, T; DeJongh, F; Delchamps, S; Dell`Agnello, S; Dell`Orso, M; Demortier, L; Denby, B; Deninno, M; Derwent, P F; Devlin, T; Dickson, M; Dittmann, J R; Donati, S; Drucker, R B; Dunn, A; Einsweiler, K; Elias, J E; Ely, R; Engels, E Jr; Eno, S; Errede, D; Errede, S; Fan, Q; Farhat, B; Fiori, I; Flaugher, B; Foster, G W; Franklin, M; Frautschi, M; Freeman, J; Friedman, J; Frisch, H; Fry, A; Fuess, T A; Fukui, Y; Funaki, S; Gagliardi, G; Galeotti, S; Gallinaro, M; Garfinkel, A F; Geer, S; Gerdes, D W; Giannetti, P; Gladney, L; Glenzinski, D; Gold, M; Gonzalez, J; Gordon, A; Goshaw, A T; Goulianos, K; Grassmann, H; Grewal, A; Grieco, G; Groer, L; Grosso-Pilcher, C; Haber, C; Hahn, S R; Hamilton, R; Handler, R; Hans, R M; Hara, K; Harral, B; Harris, R M; Hauger, S A; Hauser, J; Hawk, C; Heinrich, J

The probability that the observation is due to an upward fluctuation of the number of background events is found to be 0.8%. The robustness of the result was tested by varying the cuts defining the signal sample, and the largest probability for such a fluctuation found was 1.9%. Good agreement in the jet spectra is obtained if jet production from {ital t{bar t}} pair decays is included. For those events kinematically more consistent with {ital t{bar t}} we find evidence for a {ital b}-quark content in their jets to the extent expected from top quark decay, and larger than expected for background processes. For events with four or more jets, the discrepancy with the predicted jet distributions from direct QCD {ital W} production, and the associated excess of {ital b}-quark content, is more pronounced.

• OSTI ID: 46378
• Journal Information: Physical Review, D, Vol. 51, Issue 9; Other Information: PBD: 1 May 1995
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
PAIR PRODUCTION
KINETICS
TOP PARTICLES
PROTON-ANTIPROTON INTERACTIONS
QUANTUM CHROMODYNAMICS
W PLUS BOSONS
W MINUS BOSONS
JETS
PARTICLE PRODUCTION
QUARKS
FERMILAB COLLIDER DETECTOR
TEV RANGE
PARTICLE DECAY
TRANSVERSE ENERGY
FLUCTUATIONS