Evidence for top quark production in [ital [bar p]p] collisions at [radical][ital s] =1. 8 TeV

Journal Article · Mon Jul 11 00:00:00 EDT 1994 · Physical Review Letters; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.73.225· OSTI ID:7015267

Abe, F; Albrow, M G; Amendolia, S R; Amidei, D; Antos, J; Anway-Wiese, C; Apollinari, G; Areti, H; Auchincloss, P; Austern, M; 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; Bolognesi, V; Bortoletto, D; Boswell, C; Boulos, T; Brandenburg, G; Buckley-Geer, E; Budd, H S; Burkett, K; Busetto, G; Byon-Wagner, A; Byrum, K L; Campagnari, C; Campbell, M; Caner, A; Carithers, W; Carlsmith, D; Castro, A; Cen, Y; Cervelli, F; Chapman, J; Cheng, M; Chiarelli, G; Chikamatsu, T; Cihangir, S; Clark, A G; Cobal, M; Contreras, M; Conway, J; Cooper, J; Cordelli, M; Coupal,

We summarize a search for the top quark with the Collider Detector at Fermilab (CDF) in a sample of [ital [bar p]p] collisions at [radical][ital s] =1.8 TeV with an integrated luminosity of 19.3 pb[sup [minus]1]. We find 12 events consistent with either two [ital W] bosons, or a [ital W] boson and at least one [ital b] jet. The probability that the measured yield is consistent with the background is 0.26%. Though the statistics are too limited to establish firmly the existence of the top quark, a natural interpretation of the excess is that it is due to [ital t[bar t]] production. Under this assumption, constrained fits to individual events yield a top quark mass of 174[plus minus]10[sub [minus]12][sup +13] GeV/[ital c][sup 2]. The [ital t[bar t]] production cross section is measured to be 13.9[sub [minus]4.8][sup +6.1] pb.

• OSTI ID: 7015267
• Journal Information: Physical Review Letters; (United States), Vol. 73:2; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
PROTON-ANTIPROTON INTERACTIONS
PARTICLE PRODUCTION
TOP PARTICLES
BEAUTY PARTICLES
CROSS SECTIONS
FERMILAB COLLIDER DETECTOR
JETS
LUMINOSITY
QUARKS
TOPONIUM
W MINUS BOSONS
W PLUS BOSONS
BARYON-BARYON INTERACTIONS
BOSONS
ELEMENTARY PARTICLES
FERMIONS
HADRON-HADRON INTERACTIONS
HADRONS
INTERACTIONS
INTERMEDIATE BOSONS
INTERMEDIATE VECTOR BOSONS
MESONS
NUCLEON-ANTINUCLEON INTERACTIONS
OPTICAL PROPERTIES
PARTICLE INTERACTIONS
PHYSICAL PROPERTIES
POSTULATED PARTICLES
QUARKONIUM
662440* - Properties of Other Particles Including Hypothetical Particles- (1992-)
662340 - Hadron Interactions- (1992-)