Search for Third Generation Leptoquarks in {ital {bar p}p} Collisions at {radical}(s)=1.8TeV
- Argonne National Laboratory, Argonne, Illinois 60439 (United States)
- Istituto Nazionale di Fisica Nucleare, University of Bologna, I-40126 Bologna (Italy)
- Brandeis University, Waltham, Massachusetts 02254 (United States)
- University of California at Los Angeles, Los Angeles, California 90024 (United States)
- University of Chicago, Chicago, Illinois 60637 (United States)
- Duke University, Durham, North Carolina 27708 (United States)
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510 (United States)
- Laboratori Nazionali di Frascati, Istituto Nazionale di Fisica Nucleare, I-00044 Frascati (Italy)
- University of Geneva, CH-1211 Geneva 4 (Switzerland)
- Harvard University, Cambridge, Massachusetts 02138 (United States)
We present the results of a search for third generation leptoquark (LQ) pairs in 110{plus_minus}8pb{sup -1} of {bar p}p collisions at {radical}(s)=1.8TeV recorded by the Collider Detector at Fermilab. We assume third generation leptoquarks decay to a {tau} lepton and a b quark with branching ratio {beta}. We observe one candidate event, consistent with standard model background expectations. We place upper limits on {sigma}({bar p} p{r_arrow}LQ{ovr LQ}){center_dot}{beta}{sup 2} as a function of the leptoquark mass M{sub LQ}. We exclude at 95{percent} confidence level scalar leptoquarks with M{sub LQ}{lt}99GeV/c{sup 2}, gauge vector leptoquarks with M{sub LQ}{lt}225GeV/c{sup 2}, and nongauge vector leptoquarks with M{sub LQ}{lt}170GeV/c{sup 2} for {beta}=1. {copyright} {ital 1997} {ital The American Physical Society}
- OSTI ID:
- 544252
- Journal Information:
- Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 15 Vol. 78; ISSN 0031-9007; ISSN PRLTAO
- Country of Publication:
- United States
- Language:
- English
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