Search for Flavor-Changing Neutral Current Decays of the Top Quark in p{bar p} Collisions at {radical}({ital s}) =1.8 TeV

Journal Article · Sun Mar 01 04:00:00 EST 1998 · Physical Review Letters

OSTI ID:627545

Blair, R E; Byrum, K L; Crane, D; Kuhlmann, S E; LeCompte, T; Nodulman, L ^[1]; Bolognesi, V; Breccia, L; Deninno, M; Fiori, I; Mazzanti, P ^[2]; Behrends, S; Bensinger, J; Blocker, C; Kirsch, L; Lamoureux, J I ^[3]; Hauser, J; Keyvan, F; Lindgren, M ^[4]; Berryhill, J ; Contreras, M; Culbertson, R; Frisch, H; Grosso-Pilcher, C; Hohlmann, M; Kopp, S ^[5]; Cronin-Hennessy, D; Dittmann, J R; Goshaw, A T; Hauger, S A; Kowald, W; Oh, S H ^[6]; Albrow, M G; Atac, M; Beretvas, A; Berge, J P; Biery, K; Binkley, M; Buckley-Geer, E; Byon-Wagner, A; Campagnari, C; Cihangir, S; Cooper, J; DeJongh, F; Delchamps, S; Demina, R; Derwent, P F; Elias, J E; Flaugher, B; Foster, G W; Freeman, J; Geer, S; Hahn, S R; Harris, R M; Hylen, J; Incandela, J; Jensen, H; Joshi, U; Kennedy, R D; Kephart, R; Keutelian, H; Kim, D H; Koska, W; Kovacs, E; Kroll, J; Lammel, S; Lewis, J D; Limon, P; Lukens, P; Maeshima, K; Marriner, J P; Miao, T; Mukherjee, A; Nelson, C; Newman-Holmes, C ^[7]; Konigsberg, J; Korytov, A ^[8]; Barone, M; Barzi, E; Bertolucci, S; Cordelli, M; Giromini, P; Happacher, F; Miscetti, S ^[9]; Clark, A G; Couyoumtzelis, C; Kambara, H ^[10]; Baumann, T; Coxe, R L; Franklin, M; Gay, C; others, and

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1. Argonne National Laboratory, Argonne, Illinois 60439 (United States)
2. Istituto Nazionale di Fisica Nucleare, University of Bologna, I-40127 Bologna (Italy)
3. Brandeis University, Waltham, Massachusetts 02264 (United States)
4. University of California at Los Angeles, Los Angeles, California 90024 (United States)
5. University of Chicago, Chicago, Illinois 60637 (United States)
6. Duke University, Durham, North Carolina 28708 (United States)
7. Fermi National Accelerator Laboratory, Batavia, Illinois 60510 (United States)
8. University of Florida, Gainesville, Florida 33611 (United States)
9. Laboratori Nazionali di Frascati, Istituto Nazionale di Fisica Nucleare, I-00044 Frascati (Italy)
10. University of Geneva, CH-1211 Geneva 4 (Switzerland)

We search for the flavor-changing neutral current decays of the top quark t{r_arrow}q{gamma} and t{r_arrow}qZ (here q represents the c and u quarks) in {bar p}p collisions at {radical}(s)=1.8 TeV . We use a dataset ({integral}Ldt{approximately}110 pb{sup {minus}1}) collected during the 1992{endash}1995 run of the Collider Detector at Fermilab. We set 95{percent} confidence level limits on the branching fractions B(t{r_arrow}q{gamma}){lt}3.2{percent} and B(t{r_arrow}qZ){lt}33{percent} , consistent with the standard model. {copyright} {ital 1998} {ital The American Physical Society}

• OSTI ID: 627545
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 12 Vol. 80; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
BRANCHING RATIO
C QUARKS
FERMILAB COLLIDER DETECTOR
FLAVOR
GAMMA DECAY
NEUTRAL CURRENTS
PROTON-PROTON INTERACTIONS
STANDARD MODEL
T QUARKS
TEV RANGE
TRANSVERSE ENERGY
U QUARKS
Z NEUTRAL BOSONS