Observation of Top Quark Production in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mrow><mml:mover><mml:mrow><mml:mi mathvariant="italic">p</mml:mi></mml:mrow><mml:mrow><mml:mi>¯</mml:mi></mml:mrow></mml:mover></mml:mrow></mml:mrow><mml:mi mathvariant="italic">p</mml:mi></mml:math>Collisions with the Collider Detector at Fermilab
F. AbeNational Laboratory for High Energy Physics (KEK), Tsukuba, Ibaraki 305, JapanH. AkimotoUniversity of Tsukuba, Tsukuba, Ibaraki 305, JapanA. AkopianRockefeller University, New York, New York 10021M. AlbrowFermi National Accelerator Laboratory, Batavia, Illinois 60510S. R. AmendoliaIstituto Nazionale di Fisica Nucleare, University and Scuola Normale Superiore of Pisa, I-56100 Pisa, ItalyDante AmideiUniversity of Michigan, Ann Arbor, Michigan 48109J. AntošAcademia Sinica, Taipei, Taiwan 11529, Republic of ChinaC. Anway-WieseUniversity of California at Los Angeles, Los Angeles, California 90024S. AotaUniversity of Tsukuba, Tsukuba, Ibaraki 305, JapanG. ApollinariRockefeller University, New York, New York 10021T. AsakawaUniversity of Tsukuba, Tsukuba, Ibaraki 305, JapanW. AshmanskasLawrence Berkeley Laboratory, Berkeley, California 94720M. AtaçFermi National Accelerator Laboratory, Batavia, Illinois 60510P. AuchinclossUniversity of Rochester, Rochester, New York 14627F. AzfarUniversity of Pennsylvania, Philadelphia, Pennsylvania 19104P. AzziUniversità di Padova, Instituto Nazionale di Fisica Nucleare, Sezione di Padova, I-35131 Padova, ItalyN. BacchettaUniversità di Padova, Instituto Nazionale di Fisica Nucleare, Sezione di Padova, I-35131 Padova, ItalyW. BadgettUniversity of Michigan, Ann Arbor, Michigan 48109S. BagdasarovRockefeller University, New York, New York 10021M. W. BaileyUniversity of New Mexico, Albuquerque, New Mexico 87131J. BaoYale University, New Haven, Connecticut 06511P. de BarbaroUniversity of Rochester, Rochester, New York 14627A. Barbaro‐GaltieriLawrence Berkeley Laboratory, Berkeley, California 94720V. E. BarnesPurdue University, West Lafayette, Indiana 47907B. A. BarnettThe Johns Hopkins University, Baltimore, Maryland 21218P. BartaliniIstituto Nazionale di Fisica Nucleare, University and Scuola Normale Superiore of Pisa, I-56100 Pisa, ItalyG. BauerMassachusetts Institute of Technology, Cambridge, Massachusetts 02139T. BaumannHarvard University, Cambridge, Massachusetts 02138F. BedeschiIstituto Nazionale di Fisica Nucleare, University and Scuola Normale Superiore of Pisa, I-56100 Pisa, ItalyS. BehrendsBrandeis University, Waltham, Massachusetts 02254S. BelforteIstituto Nazionale di Fisica Nucleare, University and Scuola Normale Superiore of Pisa, I-56100 Pisa, ItalyG. BellettiniIstituto Nazionale di Fisica Nucleare, University and Scuola Normale Superiore of Pisa, I-56100 Pisa, ItalyJ. BellingerUniversity of Wisconsin, Madison, Wisconsin 53706D. BenjaminTexas Tech University, Lubbock, Texas 79409J. BenllochMassachusetts Institute of Technology, Cambridge, Massachusetts 02139J. R. BensingerBrandeis University, Waltham, Massachusetts 02254D. BentonUniversity of Pennsylvania, Philadelphia, Pennsylvania 19104A. BeretvasFermi National Accelerator Laboratory, Batavia, Illinois 60510J. P. BergéFermi National Accelerator Laboratory, Batavia, Illinois 60510S. BertolucciLaboratori Nazionali di Frascati, Istituto Nazionale di Fisica Nucleare, I-00044 Frascati, ItalyA. BhattiRockefeller University, New York, New York 10021K. BieryInstitute of Particle Physics, McGill University, Montreal, Canada H3A 2T8M. BinkleyFermi National Accelerator Laboratory, Batavia, Illinois 60510D. BiselloUniversità di Padova, Instituto Nazionale di Fisica Nucleare, Sezione di Padova, I-35131 Padova, ItalyR. E. BlairArgonne National Laboratory, Argonne, Illinois 60439C. BlockerBrandeis University, Waltham, Massachusetts 02254A. BodekUniversity of Rochester, Rochester, New York 14627W. BokhariMassachusetts Institute of Technology, Cambridge, Massachusetts 02139V. BolognesiIstituto Nazionale di Fisica Nucleare, University and Scuola Normale Superiore of Pisa, I-56100 Pisa, ItalyD. BortolettoPurdue University, West Lafayette, Indiana 47907J. BoudreauUniversity of Pittsburgh, Pittsburgh, Pennsylvania 15260G. BrandenburgHarvard University, Cambridge, Massachusetts 02138L. BrecciaIstituto Nazionale di Fisica Nucleare, University of Bologna, I-40126 Bologna, ItalyC. BrombergMichigan State University, East Lansing, Michigan 48824E. Buckley‐GeerFermi National Accelerator Laboratory, Batavia, Illinois 60510H. S. BuddUniversity of Rochester, Rochester, New York 14627K. BurkettUniversity of Michigan, Ann Arbor, Michigan 48109G. BusettoUniversità di Padova, Instituto Nazionale di Fisica Nucleare, Sezione di Padova, I-35131 Padova, ItalyR. G. WagnerFermi National Accelerator Laboratory, Batavia, Illinois 60510K. L. ByrumArgonne National Laboratory, Argonne, Illinois 60439J. CammerataThe Johns Hopkins University, Baltimore, Maryland 21218C. CampagnariFermi National Accelerator Laboratory, Batavia, Illinois 60510M. CampbellUniversity of Michigan, Ann Arbor, Michigan 48109A. CanerFermi National Accelerator Laboratory, Batavia, Illinois 60510W. CarithersLawrence Berkeley Laboratory, Berkeley, California 94720D. CarlsmithUniversity of Wisconsin, Madison, Wisconsin 53706A. CastroUniversità di Padova, Instituto Nazionale di Fisica Nucleare, Sezione di Padova, I-35131 Padova, ItalyG. CauzIstituto Nazionale di Fisica Nucleare, University and Scuola Normale Superiore of Pisa, I-56100 Pisa, ItalyY. CenUniversity of Rochester, Rochester, New York 14627F. CervelliIstituto Nazionale di Fisica Nucleare, University and Scuola Normale Superiore of Pisa, I-56100 Pisa, ItalyH. Y. ChaoAcademia Sinica, Taipei, Taiwan 11529, Republic of ChinaJ. ChapmanUniversity of Michigan, Ann Arbor, Michigan 48109M.-T. ChengAcademia Sinica, Taipei, Taiwan 11529, Republic of ChinaG. ChiarelliIstituto Nazionale di Fisica Nucleare, University and Scuola Normale Superiore of Pisa, I-56100 Pisa, ItalyT. ChikamatsuUniversity of Tsukuba, Tsukuba, Ibaraki 305, JapanC. N. ChiouAcademia Sinica, Taipei, Taiwan 11529, Republic of ChinaL. ChristofekUniversity of Illinois, Urbana, Illinois 61801S. CihangirFermi National Accelerator Laboratory, Batavia, Illinois 60510A. ClarkIstituto Nazionale di Fisica Nucleare, University and Scuola Normale Superiore of Pisa, I-56100 Pisa, ItalyM. CobalIstituto Nazionale di Fisica Nucleare, University and Scuola Normale Superiore of Pisa, I-56100 Pisa, ItalyM. ContrerasUniversity of Chicago, Chicago, Illinois 60637J. ConwayRutgers University, Piscataway, New Jersey 08854J. CooperFermi National Accelerator Laboratory, Batavia, Illinois 60510M. CordelliLaboratori Nazionali di Frascati, Istituto Nazionale di Fisica Nucleare, I-00044 Frascati, ItalyC. CouyoumtzelisIstituto Nazionale di Fisica Nucleare, University and Scuola Normale Superiore of Pisa, I-56100 Pisa, ItalyD. CraneArgonne National Laboratory, Argonne, Illinois 60439D. Cronin-HennessyDuke University, Durham, North Carolina 27708R. CulbertsonUniversity of Chicago, Chicago, Illinois 60637J. D. CunninghamBrandeis University, Waltham, Massachusetts 02254T. DanielsMassachusetts Institute of Technology, Cambridge, Massachusetts 02139F. DeJonghFermi National Accelerator Laboratory, Batavia, Illinois 60510S. DelchampsFermi National Accelerator Laboratory, Batavia, Illinois 60510S. Dell’AgnelloIstituto Nazionale di Fisica Nucleare, University and Scuola Normale Superiore of Pisa, I-56100 Pisa, ItalyM. Dell’OrsoIstituto Nazionale di Fisica Nucleare, University and Scuola Normale Superiore of Pisa, I-56100 Pisa, ItalyL. DemortierRockefeller University, New York, New York 10021B. DenbyIstituto Nazionale di Fisica Nucleare, University and Scuola Normale Superiore of Pisa, I-56100 Pisa, ItalyM. DeninnoIstituto Nazionale di Fisica Nucleare, University of Bologna, I-40126 Bologna, ItalyP. F. DerwentUniversity of Michigan, Ann Arbor, Michigan 48109T. DevlinRutgers University, Piscataway, New Jersey 08854M. DicksonUniversity of Rochester, Rochester, New York 14627
1995lv
ABI
Annotatsiya
We establish the existence of the top quark using a $67{\mathrm{pb}}^{\ensuremath{-}1}$ data sample of $\overline{p}p$ collisions at $\sqrt{s}\phantom{\rule{0ex}{0ex}}=\phantom{\rule{0ex}{0ex}}1.8\mathrm{TeV}$ collected with the Collider Detector at Fermilab (CDF). Employing techniques similar to those we previously published, we observe a signal consistent with $t\overline{t}$ decay to $\mathrm{WWb}\overline{b}$, but inconsistent with the background prediction by $4.8\ensuremath{\sigma}$. Additional evidence for the top quark is provided by a peak in the reconstructed mass distribution. We measure the top quark mass to be $176\ifmmode\pm\else\textpm\fi{}8(\mathrm{stat})\ifmmode\pm\else\textpm\fi{}10(\mathrm{syst})\mathrm{GeV}{/c}^{2}$, and the $t\overline{t}$ production cross section to be ${6.8}_{\ensuremath{-}2.4}^{+3.6}\mathrm{pb}$.
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