Measurement of {sigma} (p{bar p} --> t{bar t}) at {radical}s = 1.8 TeV by the D0 experiment
- Boston Univ., MA (United States)
- State Univ. of New York, Stony Brook, NY (United States). Dept. of Physics
We present the results from counting {ital t{anti t}} event candidates in {ital p{anti p}} collisions at a center-of-mass energy of 1.8 TeV by the DO collaboration. The results are based on an analysis of {approximately}100 pb{sup -1} of data in seven different channels which can be broadly categorized as dilepton or single- lepton depending on whether there are two or one high-{ital p{sub T}} isolated leptons ({ital e} or {mu}) in the final state. We have three dilepton channels, {ital ee},{mu}{mu}, and {ital e}{mu}. The single-lepton analysis is further divided into two subcategories, event shape and tag, orthogonal by construction, each of which has two channels, {ital e} + jets and {mu} + jets. All channels combined, we observe 37 events in our data 2048 with an estimated background of 13.4 {+-} 3.0 events. Under the assumptions of the minimal standard model, this translates into a {ital t{anti t}} production cross section as a function of the mass of the top quark ({ital m{sub t}}). For {ital m{sub t}} = 180 GeV, our measurement amounts to {sigma}({ital p{anti p}} {r_arrow} {ital t{anti t}}) = 4.7 {+-} 1.6 pb.
- Research Organization:
- Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
- Sponsoring Organization:
- USDOE Office of Energy Research, Washington, DC (United States); National Science Foundation, Washington, DC (United States); Istituto Nazionale di Fisica Nucleare, Rome (Italy); Ministry of Education, Science and Culture (Japan); Natural Sciences and Engineering Research Council of Canada, Ottawa, ON (Canada); Sloan (Alfred P.) Foundation, New York, NY (United States)
- DOE Contract Number:
- AC02-76CH03000
- OSTI ID:
- 436277
- Report Number(s):
- FNAL/C-96/299-E; CONF-960581-27; ON: TI96050657; TRN: 97:002949
- Resource Relation:
- Conference: 11. topical workshop on p{anti}p collider physics, Padova (Italy), 26 May - 1 Jun 1996; Other Information: PBD: Sep 1996
- Country of Publication:
- United States
- Language:
- English
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