Search for Charge-1/3 Third-Generation Leptoquarks in {ital p}{bar {ital p}} Collisions at {radical} (s) =1.8 TeV

Journal Article · Wed Jul 01 00:00:00 EDT 1998 · Physical Review Letters

OSTI ID:656290

Gomez, B; Hoeneisen, B; Mooney, P; Negret, J P ^[1]; Babukhadia, L; Davis, K; Fein, D; Forden, G E; Guida, J A; James, E; Johns, K; Nang, F; Narayanan, A; Rutherfoord, J; Shupe, M ^[2]; Butler, J M ^[3]; Fisyak, Y; Gibbard, B; Gordon, H; Graf, N ; Kahn, S; Kotcher, J; Proptopopescu, S; Rajagopalan, S ^[4]; Bantly, J; Cullen-Vidal, D; Cutts, D; Guida, J M; Hoftun, J S; Partridge, R ^[5]; Grinstein, S; Piegaia, R ^[6]; Bloom, P; Glenn, S; Klopfenstein, C; Mani, S ^[7]; Fahland, T; Hall, R E ^[8]; Boswell, C; Choudhary, B C; Cochran, J; Ellison, J; Gartung, P; Gounder, K; Heinson, A P; Huehn, T; Singh, H ^[9]; Alves, G A; Carvalho, W; Maciel, A K; da Motta, H; Oliveira, E; Santoro, A ^[10]; Castilla-Valdez, H; Gonzalez Solis, J L; Hernandez-Montoya, R; Magana-Mendoza, L; Sanchez-Hernandez, A ^[11]; Adam, I; Kotwal, A V ^[12]; Shivpuri, R K ^[13]; Ahn, S; Baldin, B; Bartlett, J F; Bhat, P C; Boehnlein, A; Borcherding, F; Brandt, A; Bross, A; Christenson, J H; Cooper, W E; Demarteau, M; Denisov, D; Diehl, H T; Diesburg, M; Feher, S; Fisk, H E; Flattum, E; Fuess, S; Genser, K; Gerber, C E; Green, D R; Greenlee, H; Gruenendahl, S; Gutierrez, G; Haggerty, H; Hansen, S; others, and

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1. Universidad de los Andes, Bogota (Colombia)
2. University of Arizona, Tucson, Arizona 85721 (United States)
3. Boston University, Boston, Massachusetts 02215 (United States)
4. Brookhaven National Laboratory, Upton, New York 11973 (United States)
5. Brown University, Providence, Rhode Island 02912 (United States)
6. Universidad de Buenos Aires, Buenos Aires (Argentina)
7. University of California, Davis, California 95616 (United States)
8. University of California, Irvine, California 92697 (United States)
9. University of California, Riverside, California 92521 (United States)
10. LAFEX, Centro Brasileiro de Pesquisas Fisicas, Rio de Janeiro (Brazil)
11. CINVESTAV, Mexico City (Mexico)
12. Columbia University, New York, New York 10027 (United States)
13. Delhi University, Delhi, (India) 110007

We report on a search for charge-1/3 third-generation leptoquarks (LQ) produced in p{bar p} collisions at {radical}(s) =1.8 TeV using the D0 detector at Fermilab. Third-generation leptoquarks are assumed to be produced in pairs and to decay to a tau neutrino and a b quark with branching fraction B. We place upper limits on thinsp{sigma}(p{bar p}{r_arrow}LQ {ovr LQ})B{sup 2} as a function of the leptoquark mass M{sub LQ} . Assuming B=1 , we exclude at the 95{percent} confidence level third-generation scalar leptoquarks with M{sub LQ}{lt}94 GeV/c{sup 2} , and third-generation vector leptoquarks with M{sub LQ}{lt}216 GeV/c{sup 2} (M{sub LQ}{lt}148 GeV/c{sup 2} ) assuming Yang-Mills (anomalous) coupling. {copyright} {ital 1998} {ital The American Physical Society}

• OSTI ID: 656290
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 1 Vol. 81; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
BRANCHING RATIO
LEPTONS
MASS
PAIR PRODUCTION
PROTON-ANTIPROTON INTERACTIONS
PROTON-PROTON INTERACTIONS
QUARKS
SPARTICLES
TAU NEUTRINOS
TAU PARTICLES
TEV RANGE
YANG-MILLS THEORY