Measurement of the production and muonic decay rate of W and Z bosons in p p collisions at radical s =1. 8 TeV

Journal Article · Mon Jul 06 00:00:00 EDT 1992 · Physical Review Letters; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.69.28· OSTI ID:7035344

Abe, F; Amidei, D; Apollinari, G; Atac, M; Auchincloss, P; Baden, A R; Bacchetta, N; Bailey, M W; Bamberger, A; de Barbaro, P; Barnett, B A; Barbaro-Galtieri, A; Barnes, V E; Baumann, T; Bedeschi, F; Behrends, S; Belforte, S; Bellettini, G; Bellinger, J; Benjamin, D ; Bensinger, J; Beretvas, A; Berge, J P; Bertolucci, S; Bhadra, S; Binkley, M; Bisello, D; Blair, R; Blocker, C; Bodek, A; Bolognesi, V; Booth, A W; Boswell, C; Brandenburg, G; Brown, D; Buckley-Geer, E; Budd, H S; Busetto, G; Byon-Wagner, A; Byrum, K L; Campagnari, C; Campbell, M; Caner, A; Carey, R; Carithers, W; Carlsmith, D; Carroll, J T; Cashmore, R; Castro, A; Cervelli, F; Chadwick, K; Chiarelli, G; Chinowsky, W; Cihangir, S; Clark, A G; Cobal, M; Connor, D; Contreras, M; Cooper, J; Cordelli, M; Crane, D; Curatolo, M; Day, C; DeJongh, F; Dell'Agnello, S; Dell'Orso, M; Demortier, L; Denby, B; Derwent, P F; Devlin, T; DiBitonto, D; Dickson, M; Drucke,

An analysis of proton-antiproton collisions at {radical}{ital s} =1.8 TeV recorded with the Collider Detector at Fermilab (CDF) yields {sigma}({ital p{bar p}}{r arrow}{ital WX}){ital B}({ital W}{r arrow}{mu}{nu})=2.21{plus minus}0.22 nb and {sigma}({ital p{bar p}}{r arrow}{ital ZX}){ital B}({ital Z} {r arrow}{mu}{sup +}{mu}{sup {minus})}=0.226{plus minus}0.032 nb. The ratio is {ital R}{sub {mu}}={sigma}{sub {ital W}B}({ital W}{r arrow}{mu}{nu})/{sigma}{sub {ital Z}B}({ital Z}{r arrow}{mu}{sup +}{mu}{sup {minus}})=9.8{plus minus}1.2. Combining with previous CDF electron results gives {sigma}{sub {ital W}B}({ital W}{r arrow}{ital l}{nu})=2.20{plus minus}0.20 nb, {sigma}{sub {ital Z}B}({ital Z}{r arrow}{ital l}{sup +}{ital l{minus}})=0.214{plus minus}0.023 nb, and {ital R}{sub {ital l}}=10.0{plus minus}0.8. We extract the ratios of the coupling constants {ital g}{sub {mu}}/{ital g}{sub {ital e}} and {ital g}{sub {tau}}/{ital g}{sub {mu}}. Using standard model assumptions we deduce the inverse branching ratio {ital B}{sup {minus}1}({ital W}{r arrow}{ital l}{nu}), the width {Gamma}({ital W}), and a decay-mode-independent lower bound on the top quark mass of 45 GeV/{ital c}{sup 2} (95% C.L.).

• OSTI ID: 7035344
• Journal Information: Physical Review Letters; (United States), Vol. 69:1; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
INTERMEDIATE VECTOR BOSONS
PARTICLE PRODUCTION
PROTON-ANTIPROTON INTERACTIONS
BRANCHING RATIO
CROSS SECTIONS
EXPERIMENTAL DATA
LEPTONS
MASS
MISSING MASS
TOP PARTICLES
TRANSVERSE MOMENTUM
BARYON-BARYON INTERACTIONS
BOSONS
DATA
ELEMENTARY PARTICLES
FERMIONS
HADRON-HADRON INTERACTIONS
INFORMATION
INTERACTIONS
INTERMEDIATE BOSONS
LINEAR MOMENTUM
NUCLEON-ANTINUCLEON INTERACTIONS
NUMERICAL DATA
PARTICLE INTERACTIONS
POSTULATED PARTICLES
662440* - Properties of Other Particles Including Hypothetical Particles- (1992-)
662340 - Hadron Interactions- (1992-)