Measurement of the ratio {sigma}{ital B}({ital p{bar p}}{r_arrow}{ital W}{r_arrow}{ital e}{nu})/{sigma}{ital B}({ital p{bar p}}{r_arrow}{ital Z}{sup 0}{r_arrow}{ital ee}) in {ital p{bar p}} collisions at {radical}{ital s} =1800 GeV

Journal Article · Fri Sep 01 00:00:00 EDT 1995 · Physical Review, D

DOI:https://doi.org/10.1103/PhysRevD.52.2624· OSTI ID:123615

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; Dittman, J; 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; Galeottia, S; Gallinaro, M; Garfinkel, A F; Geer, S; Gerdes, D W; Giannetti, P; Giokaris, N; Giromini, P; Gladney, L; Glenzinski, D; Gold, M; Gonzalez, J; Gordon, A; Goshaw, A T; Goulianos, K; Grassmann, H; Grewal, A; 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

We present an analysis of data from {ital p} {bar p} collisions at a center-of-mass energy of {radical}{ital s} =1800 GeV. A measurement is made of the ratio {ital R}{equivalent_to}{sigma}{ital B}({ital p} {ital {bar p}}{r_arrow}{ital W}{r_arrow}{ital e}{nu})/{sigma}{ital B}({ital p} {bar p}{r_arrow}{ital Z}{sup 0}{r_arrow}{ital ee}). The data represent 19.6 pg{sup {minus}1} collected by the Collider Detector at Fermilab during the 1992--1993 collider run of the Fermilab Tevatron. We find {ital R}=10.90{plus_minus}0.32(stat){plus_minus}0.29(syst), and from this value we extract a measurement of the {ital W}{r_arrow}{ital e}{nu} branching ratio {Gamma}({ital W}{r_arrow}{ital e}{nu})/{Gamma}({ital W})=0.1094{plus_minus}0.0033(stat){plus_minus}0.0031(syst). From this branching ratio we set a limit on the top quark mass of {ital m}{sub {ital t}}{gt}62 GeV/{ital c}{sup 2} at the 95% confidence level. In contrast with direct searches for the top quark, this limit makes no assumptions about the allowed decay modes of the top quark. In addition, we use a calculation of the leptonic width {Gamma}({ital W}{r_arrow}{ital e}{nu}) to obtain a value for the {ital W} total decay width: {Gamma}({ital W})=2.064{plus_minus}0.060(stat){plus_minus}0.059(syst) GeV.

• OSTI ID: 123615
• Journal Information: Physical Review, D, Vol. 52, Issue 5; Other Information: PBD: 1 Sep 1995
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
PROTON-ANTIPROTON INTERACTIONS
PARTICLE PRODUCTION
W MINUS BOSONS
Z NEUTRAL BOSONS
CENTER-OF-MASS SYSTEM
TEV RANGE 01-10
FERMILAB COLLIDER DETECTOR
FERMILAB TEVATRON
BRANCHING RATIO
QUARKS
MASS
WIDTH
LEPTONIC DECAY